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<p class="centerbold">Debian Live Handbuch
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<p class="centerbold">Debian Live Projekt <debian-live@lists.debian.org>
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<p class="small_left">Rights: Copyright <sup>&copy;</sup>&nbsp; 2006-2011 Debian Live Projekt;<br> License: Dieses Programm ist freie Software. Sie k&ouml;nnen es unter den Bedingungen der GNU General Public License, wie von der Free Software Foundation ver&ouml;ffentlicht, weitergeben und/oder modifizieren, entweder gem&auml;ss Version 3 der Lizenz oder (nach Ihrer Option) jeder sp&auml;teren Version.<br><br>Die Ver&ouml;ffentlichung dieses Programms erfolgt in der Hoffnung, dass es Ihnen von Nutzen sein wird, aber OHNE IRGENDEINE GARANTIE, sogar ohne die implizite Garantie der MARKTREIFE oder der VERWENDBARKEIT F&Uuml;R EINEN BESTIMMTEN ZWECK. Details finden Sie in der GNU General Public License.<br><br>Sie sollten ein Exemplar der GNU General Public License zusammen mit diesem Programm erhalten haben. Falls nicht, siehe <http://www.gnu.org/licenses/>.<br><br>Der komplette Text der GNU General Public License kann in der Datei /usr/share/common-licenses/GPL-3 gefunden werden.</p>
<p />

<br />

<h1 class="toc">
    <b><a href="#1">Debian Live Handbuch</a></b>
  </h1>

<h2 class="toc">
    <a href="#2">&Uuml;ber Debian Live</a>
  </h2>

<h4 class="toc">
    <a href="#3">1. About this manual</a>
  </h4>

<h5 class="toc">
    <a href="#6">1.1 For the impatient</a>
  </h5>

<h5 class="toc">
    <a href="#8">1.2 Terms</a>
  </h5>

<h5 class="toc">
    <a href="#25">1.3 Authors</a>
  </h5>

<h5 class="toc">
    <a href="#39">1.4 Contributing to this document</a>
  </h5>

<h6 class="toc">
    <a href="#50">1.4.1 Applying patches</a>
  </h6>

<h6 class="toc">
    <a href="#65">1.4.2 Translation</a>
  </h6>

<h4 class="toc">
    <a href="#70">2. About the Debian Live Project</a>
  </h4>

<h5 class="toc">
    <a href="#71">2.1 Motivation</a>
  </h5>

<h6 class="toc">
    <a href="#72">2.1.1 What is wrong with current live systems</a>
  </h6>

<h6 class="toc">
    <a href="#82">2.1.2 Why create our own live system?</a>
  </h6>

<h5 class="toc">
    <a href="#90">2.2 Philosophy</a>
  </h5>

<h6 class="toc">
    <a href="#91">2.2.1 Only unchanged packages from Debian "main"</a>
  </h6>

<h6 class="toc">
    <a href="#95">2.2.2 No package configuration of the live system</a>
  </h6>

<h5 class="toc">
    <a href="#100">2.3 Contact</a>
  </h5>

<h2 class="toc">
    <a href="#105">Benutzer</a>
  </h2>

<h4 class="toc">
    <a href="#106">3. Installation</a>
  </h4>

<h5 class="toc">
    <a href="#107">3.1 Requirements</a>
  </h5>

<h5 class="toc">
    <a href="#115">3.2 Installing live-build</a>
  </h5>

<h6 class="toc">
    <a href="#121">3.2.1 From the Debian repository</a>
  </h6>

<h6 class="toc">
    <a href="#126">3.2.2 From source</a>
  </h6>

<h6 class="toc">
    <a href="#137">3.2.3 From 'snapshots'</a>
  </h6>

<h5 class="toc">
    <a href="#139">3.3 live-boot and live-config</a>
  </h5>

<h6 class="toc">
    <a href="#141">3.3.1 From the Debian repository</a>
  </h6>

<h6 class="toc">
    <a href="#143">3.3.2 From source</a>
  </h6>

<h6 class="toc">
    <a href="#154">3.3.3 From 'snapshots'</a>
  </h6>

<h4 class="toc">
    <a href="#157">4. The basics</a>
  </h4>

<h5 class="toc">
    <a href="#160">4.1 What is a live system?</a>
  </h5>

<h5 class="toc">
    <a href="#168">4.2 First steps: building an ISO hybrid image</a>
  </h5>

<h5 class="toc">
    <a href="#176">4.3 Using an ISO hybrid live image</a>
  </h5>

<h6 class="toc">
    <a href="#178">4.3.1 Burning an ISO image to a physical medium</a>
  </h6>

<h6 class="toc">
    <a href="#181">4.3.2 Copying an ISO hybrid image to a USB stick</a>
  </h6>

<h6 class="toc">
    <a href="#185">4.3.3 Booting the live media</a>
  </h6>

<h5 class="toc">
    <a href="#189">4.4 Using a virtual machine for testing</a>
  </h5>

<h6 class="toc">
    <a href="#196">4.4.1 Testing an ISO image with QEMU</a>
  </h6>

<h6 class="toc">
    <a href="#203">4.4.2 Testing an ISO image with virtualbox-ose</a>
  </h6>

<h5 class="toc">
    <a href="#209">4.5 Building a USB/HDD image</a>
  </h5>

<h5 class="toc">
    <a href="#218">4.6 Using a USB/HDD image</a>
  </h5>

<h6 class="toc">
    <a href="#220">4.6.1 Testing a USB/HDD image with Qemu</a>
  </h6>

<h6 class="toc">
    <a href="#223">4.6.2 Using the space left on a USB stick</a>
  </h6>

<h5 class="toc">
    <a href="#230">4.7 Building a netboot image</a>
  </h5>

<h6 class="toc">
    <a href="#242">4.7.1 DHCP server</a>
  </h6>

<h6 class="toc">
    <a href="#246">4.7.2 TFTP server</a>
  </h6>

<h6 class="toc">
    <a href="#251">4.7.3 NFS server</a>
  </h6>

<h6 class="toc">
    <a href="#259">4.7.4 Netboot testing HowTo</a>
  </h6>

<h6 class="toc">
    <a href="#262">4.7.5 Qemu</a>
  </h6>

<h6 class="toc">
    <a href="#268">4.7.6 VMWare Player</a>
  </h6>

<h4 class="toc">
    <a href="#276">5. Overview of tools</a>
  </h4>

<h5 class="toc">
    <a href="#278">5.1 live-build</a>
  </h5>

<h6 class="toc">
    <a href="#289">5.1.1 The <tt>lb config</tt> command</a>
  </h6>

<h6 class="toc">
    <a href="#299">5.1.2 The <tt>lb build</tt> command</a>
  </h6>

<h6 class="toc">
    <a href="#301">5.1.3 The <tt>lb clean</tt> command</a>
  </h6>

<h5 class="toc">
    <a href="#303">5.2 The live-boot package</a>
  </h5>

<h5 class="toc">
    <a href="#307">5.3 The live-config package</a>
  </h5>

<h4 class="toc">
    <a href="#309">6. Managing a configuration</a>
  </h4>

<h5 class="toc">
    <a href="#311">6.1 Use auto to manage configuration changes</a>
  </h5>

<h5 class="toc">
    <a href="#316">6.2 Example auto scripts</a>
  </h5>

<h4 class="toc">
    <a href="#327">7. Customization overview</a>
  </h4>

<h5 class="toc">
    <a href="#329">7.1 Build time vs. boot time configuration</a>
  </h5>

<h5 class="toc">
    <a href="#332">7.2 Stages of the build</a>
  </h5>

<h5 class="toc">
    <a href="#335">7.3 Supplement lb config with files</a>
  </h5>

<h5 class="toc">
    <a href="#337">7.4 Customization tasks</a>
  </h5>

<h4 class="toc">
    <a href="#339">8. Customizing package installation</a>
  </h4>

<h5 class="toc">
    <a href="#341">8.1 Package sources</a>
  </h5>

<h6 class="toc">
    <a href="#342">8.1.1 Distribution, archive areas and mode</a>
  </h6>

<h6 class="toc">
    <a href="#349">8.1.2 Distribution mirrors</a>
  </h6>

<h6 class="toc">
    <a href="#351">8.1.3 Distribution mirrors used at build time</a>
  </h6>

<h6 class="toc">
    <a href="#355">8.1.4 Distribution mirrors used at run time</a>
  </h6>

<h6 class="toc">
    <a href="#358">8.1.5 Additional repositories</a>
  </h6>

<h5 class="toc">
    <a href="#367">8.2 Choosing packages to install</a>
  </h5>

<h6 class="toc">
    <a href="#369">8.2.1 Package lists</a>
  </h6>

<h6 class="toc">
    <a href="#372">8.2.2 Predefined package lists</a>
  </h6>

<h6 class="toc">
    <a href="#376">8.2.3 Local package lists</a>
  </h6>

<h6 class="toc">
    <a href="#380">8.2.4 Local binary package lists</a>
  </h6>

<h6 class="toc">
    <a href="#382">8.2.5 Extending a provided package list using includes</a>
  </h6>

<h6 class="toc">
    <a href="#386">8.2.6 Using conditionals inside package lists</a>
  </h6>

<h6 class="toc">
    <a href="#397">8.2.7 Tasks</a>
  </h6>

<h6 class="toc">
    <a href="#401">8.2.8 Desktop and language tasks</a>
  </h6>

<h5 class="toc">
    <a href="#409">8.3 Installing modified or  third-party packages</a>
  </h5>

<h6 class="toc">
    <a href="#416">8.3.1 Using <tt>packages.chroot</tt> to install custom packages</a>
  </h6>

<h6 class="toc">
    <a href="#423">8.3.2 Using an APT repository to install custom packages</a>
  </h6>

<h6 class="toc">
    <a href="#426">8.3.3 Custom packages and APT</a>
  </h6>

<h5 class="toc">
    <a href="#429">8.4 Configuring APT at build time</a>
  </h5>

<h6 class="toc">
    <a href="#431">8.4.1 Choosing apt or aptitude</a>
  </h6>

<h6 class="toc">
    <a href="#435">8.4.2 Using a proxy with APT</a>
  </h6>

<h6 class="toc">
    <a href="#438">8.4.3 Tweaking APT to save space</a>
  </h6>

<h6 class="toc">
    <a href="#446">8.4.4 Passing options to apt or aptitude</a>
  </h6>

<h6 class="toc">
    <a href="#448">8.4.5 APT pinning</a>
  </h6>

<h4 class="toc">
    <a href="#456">9. Customizing contents</a>
  </h4>

<h5 class="toc">
    <a href="#458">9.1 Includes</a>
  </h5>

<h6 class="toc">
    <a href="#464">9.1.1 Live/chroot local includes</a>
  </h6>

<h6 class="toc">
    <a href="#471">9.1.2 Binary local includes</a>
  </h6>

<h6 class="toc">
    <a href="#475">9.1.3 Binary includes</a>
  </h6>

<h5 class="toc">
    <a href="#479">9.2 Hooks</a>
  </h5>

<h6 class="toc">
    <a href="#481">9.2.1 Live/chroot local hooks</a>
  </h6>

<h6 class="toc">
    <a href="#483">9.2.2 Boot-time hooks</a>
  </h6>

<h6 class="toc">
    <a href="#485">9.2.3 Binary local hooks</a>
  </h6>

<h5 class="toc">
    <a href="#487">9.3 Preseeding Debconf questions</a>
  </h5>

<h4 class="toc">
    <a href="#490">10. Customizing run time behaviours</a>
  </h4>

<h5 class="toc">
    <a href="#492">10.1 Customizing the live user</a>
  </h5>

<h5 class="toc">
    <a href="#500">10.2 Customizing locale and language</a>
  </h5>

<h5 class="toc">
    <a href="#516">10.3 Persistence</a>
  </h5>

<h6 class="toc">
    <a href="#521">10.3.1 Full persistence</a>
  </h6>

<h6 class="toc">
    <a href="#530">10.3.2 Home automounting</a>
  </h6>

<h6 class="toc">
    <a href="#532">10.3.3 Snapshots</a>
  </h6>

<h6 class="toc">
    <a href="#536">10.3.4 Persistent SubText</a>
  </h6>

<h6 class="toc">
    <a href="#538">10.3.5 Partial remastering</a>
  </h6>

<h4 class="toc">
    <a href="#540">11. Customizing the binary image</a>
  </h4>

<h5 class="toc">
    <a href="#541">11.1 Bootloader</a>
  </h5>

<h5 class="toc">
    <a href="#543">11.2 ISO metadata</a>
  </h5>

<h4 class="toc">
    <a href="#549">12. Customizing Debian Installer</a>
  </h4>

<h5 class="toc">
    <a href="#552">12.1 Types of Debian Installer</a>
  </h5>

<h5 class="toc">
    <a href="#564">12.2 Customizing Debian Installer by preseeding</a>
  </h5>

<h5 class="toc">
    <a href="#567">12.3 Customizing Debian Installer content</a>
  </h5>

<h2 class="toc">
    <a href="#569">Projekt</a>
  </h2>

<h4 class="toc">
    <a href="#570">13. Reporting bugs</a>
  </h4>

<h5 class="toc">
    <a href="#576">13.1 Known issues</a>
  </h5>

<h5 class="toc">
    <a href="#581">13.2 Rebuild from scratch</a>
  </h5>

<h5 class="toc">
    <a href="#583">13.3 Use up-to-date packages</a>
  </h5>

<h5 class="toc">
    <a href="#585">13.4 Collect information</a>
  </h5>

<h5 class="toc">
    <a href="#601">13.5 Isolate the failing case if possible</a>
  </h5>

<h5 class="toc">
    <a href="#603">13.6 Use the correct package to report the bug against</a>
  </h5>

<h6 class="toc">
    <a href="#605">13.6.1 At build time whilst bootstrapping</a>
  </h6>

<h6 class="toc">
    <a href="#608">13.6.2 At build time whilst installing packages</a>
  </h6>

<h6 class="toc">
    <a href="#612">13.6.3 At boot time</a>
  </h6>

<h6 class="toc">
    <a href="#614">13.6.4 At run time</a>
  </h6>

<h5 class="toc">
    <a href="#616">13.7 Do the research</a>
  </h5>

<h5 class="toc">
    <a href="#620">13.8 Where to report bugs</a>
  </h5>

<h4 class="toc">
    <a href="#624">14. Coding Style</a>
  </h4>

<h5 class="toc">
    <a href="#626">14.1 Compatibility</a>
  </h5>

<h5 class="toc">
    <a href="#630">14.2 Indenting</a>
  </h5>

<h5 class="toc">
    <a href="#632">14.3 Wrapping</a>
  </h5>

<h5 class="toc">
    <a href="#644">14.4 Variables</a>
  </h5>

<h5 class="toc">
    <a href="#663">14.5 Miscellaneous</a>
  </h5>

<h4 class="toc">
    <a href="#667">15. Procedures</a>
  </h4>

<h5 class="toc">
    <a href="#669">15.1 Udeb Uploads</a>
  </h5>

<h5 class="toc">
    <a href="#672">15.2 Major Releases</a>
  </h5>

<h5 class="toc">
    <a href="#680">15.3 Point Releases</a>
  </h5>

<h6 class="toc">
    <a href="#684">15.3.1 Point release announcement template</a>
  </h6>

<h2 class="toc">
    <a href="#689">Beispiele</a>
  </h2>

<h4 class="toc">
    <a href="#690">16. Examples</a>
  </h4>

<h5 class="toc">
    <a href="#692">16.1 Using the examples</a>
  </h5>

<h5 class="toc">
    <a href="#696">16.2 Tutorial 1: A standard image</a>
  </h5>

<h5 class="toc">
    <a href="#705">16.3 Tutorial 2: A web browser utility</a>
  </h5>

<h5 class="toc">
    <a href="#713">16.4 Tutorial 3: A personalized image</a>
  </h5>

<h6 class="toc">
    <a href="#716">16.4.1 First revision</a>
  </h6>

<h6 class="toc">
    <a href="#728">16.4.2 Second revision</a>
  </h6>

<h5 class="toc">
    <a href="#740">16.5 A VNC Kiosk Client</a>
  </h5>

<h5 class="toc">
    <a href="#749">16.6 A base image for a 128M USB key</a>
  </h5>

<h5 class="toc">
    <a href="#757">16.7 A localized KDE desktop and installer</a>
  </h5>

<div class="scroll">

<center><hr width=90% /></center>

<div class="substance">
  <label class="ocn"><a name="1" href="#1" class="lnkocn">1</a></label>
  <h1 class="norm" id="o1"><a name="1"></a>
    <a name="h">Debian Live Handbuch</a>
  </h1>
</div>

<div class="substance">
  <label class="ocn"><a name="2" href="#2" class="lnkocn">2</a></label>
  <h2 class="norm" id="o2"><a name="2"></a>
    <a name="h">&Uuml;ber Debian Live</a>
  </h2>
</div>

<div class="substance">
  <label class="ocn"><a name="3" href="#3" class="lnkocn">3</a></label>
  <h4 class="norm" id="o3"><a name="3"></a>
    <a name="h1" ></a><a name="about_this_manual" ></a><a name="about-manual" ></a><a name="habout-manual">1. About this manual</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="4" href="#4" class="lnkocn">4</a></label>
  <p class="i0" id="o4">
    The main goal of this manual is to serve as a single access point to all  documentation related to the Debian Live project. While it is primarily  focused on helping you build a live system and not on end-user topics, an  end-user may find some useful information in these sections:  <a href="#the-basics">The  Basics</a>  covers preparing images to be booted from media or the  network, and  <a href="#customizing-run-time-behaviours">Customizing run time  behaviours</a>  describes some options that may  be specified at the boot prompt, such as selecting a keyboard layout and  locale, and using persistence.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="5" href="#5" class="lnkocn">5</a></label>
  <p class="i0" id="o5">
    Some of the commands mentioned in the text must be executed with superuser  privileges which can be obtained by becoming the root user via <tt>su</tt> or by  using <tt>sudo</tt>. To distinguish between commands which may be executed by an  unprivileged user and those requiring superuser privileges, commands are  prepended by <tt>$</tt> or <tt>#</tt> respectively. This symbol is not a part of the  command.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="6" href="#6" class="lnkocn">6</a></label>
  <h5 class="norm" id="o6"><a name="6"></a>
    <a name="1.1" ></a><a name="h1.1" ></a><a name="h1.1">1.1 For the impatient</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="7" href="#7" class="lnkocn">7</a></label>
  <p class="i0" id="o7">
    While we believe that everything in this manual is important to at least  some of our users, we realize it is a lot of material to cover and that you  may wish to experience early success using the software before delving into  the details. Therefore, we have provided three tutorials in the   <a href="#examples">Examples</a>  section designed to teach you image building and  customization basics. Read  <a href="#using-the-examples">Using the examples</a>  first,  followed by  <a href="#tutorial-1">Tutorial 1: A standard image</a>,   <a href="#tutorial-2">Tutorial 2: A web  browser utility</a>  and finally  <a href="#tutorial-3">Tutorial 3: A personalized  image</a>.  By the end of these tutorials, you will have a taste of  what can be done with Debian Live. We encourage you to return to more  in-depth study of the manual, perhaps next reading  <a href="#the-basics">The basics</a>,   skimming or skipping  <a href="#building-netboot-image">Building a netboot image</a>,  and  finishing by reading the  <a href="#customization-overview">Customization overview</a>  and  the chapters that follow it. By this point, we hope you are thoroughly  excited by what can be done with Debian Live and motivated to read the rest  of the manual, cover-to-cover.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="8" href="#8" class="lnkocn">8</a></label>
  <h5 class="norm" id="o8"><a name="8"></a>
    <a name="h1.2" ></a><a name="terms" ></a><a name="hterms">1.2 Terms</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="9" href="#9" class="lnkocn">9</a></label>
  <li class="bullet" id="o9">
    <b>Live system</b>: An operating system that can boot without installation  to a hard drive. Live systems do not alter local operating system(s) or  file(s) already installed on the computer hard drive unless instructed to do  so. Live systems are typically booted from media such as CDs, DVDs or USB  sticks. Some may also boot over the network.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="10" href="#10" class="lnkocn">10</a></label>
  <li class="bullet" id="o10">
    <b>Debian Live</b>: The Debian sub-project which maintains the <i>live-boot</i>,  <i>live-build</i>, <i>live-config</i>, and <i>live-manual</i> packages.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="11" href="#11" class="lnkocn">11</a></label>
  <li class="bullet" id="o11">
    <b>Debian Live system</b>: A live system that uses software from the Debian  operating system that may be booted from CDs, DVDs, USB sticks, over the  network (via netboot images), and over the Internet (via boot parameter  <tt>fetch=URL</tt>).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="12" href="#12" class="lnkocn">12</a></label>
  <li class="bullet" id="o12">
    <b>Host system</b>: The environment used to create the live system.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="13" href="#13" class="lnkocn">13</a></label>
  <li class="bullet" id="o13">
    <b>Target system</b>: The environment used to run the live system.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="14" href="#14" class="lnkocn">14</a></label>
  <li class="bullet" id="o14">
    <b><i>live-boot</i></b>: A collection of scripts used to boot live  systems. <i>live-boot</i> was formerly a part of live-initramfs.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="15" href="#15" class="lnkocn">15</a></label>
  <li class="bullet" id="o15">
    <b><i>live-build</i></b>: A collection of scripts used to build customized Debian  Live systems. <i>live-build</i> was formerly known as live-helper, and even earlier  known as live-package.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="16" href="#16" class="lnkocn">16</a></label>
  <li class="bullet" id="o16">
    <b><i>live-config</i></b>: A collection of scripts used to configure a live system  during the boot process. <i>live-config</i> was formerly a part of live-initramfs.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="17" href="#17" class="lnkocn">17</a></label>
  <li class="bullet" id="o17">
    <b><i>live-manual</i></b>: This document is maintained in a package called  <i>live-manual</i>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="18" href="#18" class="lnkocn">18</a></label>
  <li class="bullet" id="o18">
    <b>Debian Installer (d-i)</b>: The official installation system for the  Debian distribution.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="19" href="#19" class="lnkocn">19</a></label>
  <li class="bullet" id="o19">
    <b>Boot parameters</b>: Parameters that can be entered at the bootloader  prompt to influence the kernel or <i>live-config</i>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="20" href="#20" class="lnkocn">20</a></label>
  <li class="bullet" id="o20">
    <b>chroot</b>: The chroot program, <tt>chroot(8)</tt>, enables us to run  different instances of the GNU/Linux environment on a single system  simultaneously without rebooting.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="21" href="#21" class="lnkocn">21</a></label>
  <li class="bullet" id="o21">
    <b>Binary image</b>: A file containing the live system, such as binary.iso  or binary.img.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="22" href="#22" class="lnkocn">22</a></label>
  <li class="bullet" id="o22">
    <b>Target distribution</b>: The distribution upon which your live system  will be based. This can differ from the distribution of your host system.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="23" href="#23" class="lnkocn">23</a></label>
  <li class="bullet" id="o23">
    <b>Squeeze/Wheezy/Sid (stable/testing/unstable)</b>: Debian codenames for  releases. At the time of writing, <b>Squeeze</b> is the current <b>stable</b> release  and <b>Wheezy</b> is the current <b>testing</b> release. <b>Sid</b> will always be a synonym  for the <b>unstable</b> release. Throughout the manual, we tend to use  codenames for the releases, as that is what is supported by the tools  themselves.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="24" href="#24" class="lnkocn">24</a></label>
  <p class="i0" id="o24">
    The <b>stable</b> distribution contains the latest officially released  distribution of Debian. The <b>testing</b> distribution is the staging area for  the next <b>stable</b> release. A major advantage of using this distribution is  that it has more recent versions of software relative to the <b>stable</b>  release. The <b>unstable</b> distribution is where active development of Debian  occurs. Generally, this distribution is run by developers and those who like  to live on the edge.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="25" href="#25" class="lnkocn">25</a></label>
  <h5 class="norm" id="o25"><a name="25"></a>
    <a name="1.3" ></a><a name="h1.3" ></a><a name="h1.3">1.3 Authors</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="26" href="#26" class="lnkocn">26</a></label>
  <p class="i0" id="o26">
    A list of authors (in alphabetical order):
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="27" href="#27" class="lnkocn">27</a></label>
  <li class="bullet" id="o27">
    Ben Armstrong
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="28" href="#28" class="lnkocn">28</a></label>
  <li class="bullet" id="o28">
    Brendan Sleight
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="29" href="#29" class="lnkocn">29</a></label>
  <li class="bullet" id="o29">
    Chris Lamb
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="30" href="#30" class="lnkocn">30</a></label>
  <li class="bullet" id="o30">
    Daniel Baumann
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="31" href="#31" class="lnkocn">31</a></label>
  <li class="bullet" id="o31">
    Franklin Piat
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="32" href="#32" class="lnkocn">32</a></label>
  <li class="bullet" id="o32">
    Jonas Stein
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="33" href="#33" class="lnkocn">33</a></label>
  <li class="bullet" id="o33">
    Kai Hendry
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="34" href="#34" class="lnkocn">34</a></label>
  <li class="bullet" id="o34">
    Marco Amadori
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="35" href="#35" class="lnkocn">35</a></label>
  <li class="bullet" id="o35">
    Mathieu Geli
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="36" href="#36" class="lnkocn">36</a></label>
  <li class="bullet" id="o36">
    Matthias Kirschner
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="37" href="#37" class="lnkocn">37</a></label>
  <li class="bullet" id="o37">
    Richard Nelson
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="38" href="#38" class="lnkocn">38</a></label>
  <li class="bullet" id="o38">
    Trent W. Buck
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="39" href="#39" class="lnkocn">39</a></label>
  <h5 class="norm" id="o39"><a name="39"></a>
    <a name="h1.4" ></a><a name="how-to-contribute" ></a><a name="hhow-to-contribute">1.4 Contributing to this document</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="40" href="#40" class="lnkocn">40</a></label>
  <p class="i0" id="o40">
    This manual is intended as a community project and all proposals for  improvements and contributions are extremely welcome. The preferred way to  submit a contribution is to send it to the mailing list. Please see the  section  <a href="#contact">Contact</a>  for more information.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="41" href="#41" class="lnkocn">41</a></label>
  <p class="i0" id="o41">
    When submitting a contribution, please clearly identify its copyright holder  and include the licensing statement. Note that to be accepted, the  contribution must be licensed under the same license as the rest of the  document, namely, GPL version 3 or later.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="42" href="#42" class="lnkocn">42</a></label>
  <p class="i0" id="o42">
    The sources for this manual are maintained using the Git version control  system. You can check out the latest copy by executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="43" href="#43" class="lnkocn">43</a></label>
  <p class="code" id="o43">
    $ git clone git://live.debian.net/git/live-manual.git<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="44" href="#44" class="lnkocn">44</a></label>
  <p class="i0" id="o44">
    Prior to submission of your contribution, please preview your work. To  preview the <i>live-manual</i>, ensure the packages needed for building are  installed by executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="45" href="#45" class="lnkocn">45</a></label>
  <p class="code" id="o45">
    # apt-get install make po4a sisu-complete libnokogiri-ruby<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="46" href="#46" class="lnkocn">46</a></label>
  <p class="i0" id="o46">
    You may build the <i>live-manual</i> from the top level directory of your Git  checkout by executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="47" href="#47" class="lnkocn">47</a></label>
  <p class="code" id="o47">
    $ make build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="48" href="#48" class="lnkocn">48</a></label>
  <p class="i0" id="o48">
    Since it takes a while to build the manual in all supported languages, you  may find it convenient when proofing to build for only one language, e.g. by  executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="49" href="#49" class="lnkocn">49</a></label>
  <p class="code" id="o49">
    $ make build LANGUAGES=en<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="50" href="#50" class="lnkocn">50</a></label>
  <h6 class="norm" id="o50"><a name="50"></a>
    <a name="1.4.1" ></a><a name="h1.4.1" ></a><a name="h1.4.1">1.4.1 Applying patches</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="51" href="#51" class="lnkocn">51</a></label>
  <p class="i0" id="o51">
    Anyone can directly commit to the repository. However, we ask you to send  bigger changes to the mailing list to discuss them first. To push to the  repository, you must follow this procedure:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="52" href="#52" class="lnkocn">52</a></label>
  <li class="bullet" id="o52">
    Fetch the public commit key:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="53" href="#53" class="lnkocn">53</a></label>
  <p class="code" id="o53">
    $ mkdir -p ~/.ssh/identity.d<br />
$ wget http://live.debian.net/other/keys/git@live.debian.net \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-O ~/.ssh/identity.d/git@live.debian.net<br />
$ wget http://live.debian.net/other/keys/git@live.debian.net.pub \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-O ~/.ssh/identity.d/git@live.debian.net.pub<br />
$ chmod 0600 ~/.ssh/identity.d/git@live.debian.net*<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="54" href="#54" class="lnkocn">54</a></label>
  <li class="bullet" id="o54">
    Add the following section to your openssh-client config:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="55" href="#55" class="lnkocn">55</a></label>
  <p class="code" id="o55">
    $ cat >> ~/.ssh/config << EOF<br />
Host live.debian.net<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Hostname live.debian.net<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;User git<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IdentityFile ~/.ssh/identity.d/git@live.debian.net<br />
EOF<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="56" href="#56" class="lnkocn">56</a></label>
  <li class="bullet" id="o56">
    Check out a clone of the manual through ssh:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="57" href="#57" class="lnkocn">57</a></label>
  <p class="code" id="o57">
    $ git clone git@live.debian.net:/live-manual.git<br />
$ cd live-manual && git checkout debian-next<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="58" href="#58" class="lnkocn">58</a></label>
  <li class="bullet" id="o58">
    Note that you should commit any changes on the debian-next branch, not on  the debian branch.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="59" href="#59" class="lnkocn">59</a></label>
  <li class="bullet" id="o59">
    After editing the files in <tt>manual/en/</tt>, please call the 'commit'  target in the top level directory to sanitize the files and update the  translation files:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="60" href="#60" class="lnkocn">60</a></label>
  <p class="code" id="o60">
    $ make commit<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="61" href="#61" class="lnkocn">61</a></label>
  <li class="bullet" id="o61">
    After sanitizing, commit the changes. Write commit messages that consist  of full, useful sentences in English, starting with a capital letter and  ending with a full stop. Usually, these will start with the form  'Fixing/Adding/Removing/Correcting/Translating', e.g.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="62" href="#62" class="lnkocn">62</a></label>
  <p class="code" id="o62">
    $ git commit -a -m "Adding a section on applying patches."<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="63" href="#63" class="lnkocn">63</a></label>
  <li class="bullet" id="o63">
    Push the commit to the server:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="64" href="#64" class="lnkocn">64</a></label>
  <p class="code" id="o64">
    $ git push<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="65" href="#65" class="lnkocn">65</a></label>
  <h6 class="norm" id="o65"><a name="65"></a>
    <a name="1.4.2" ></a><a name="h1.4.2" ></a><a name="h1.4.2">1.4.2 Translation</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="66" href="#66" class="lnkocn">66</a></label>
  <p class="i0" id="o66">
    To submit a translation for a new language, follow these three steps:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="67" href="#67" class="lnkocn">67</a></label>
  <li class="bullet" id="o67">
    Translate the about_manual.ssi.pot, about_project.ssi.pot and  index.html.in.pot files to your language with your favourite editor (such as  poedit). Send translated files to the mailing list. Once we have reviewed  your submission, we will add the new language to the manual (providing the  po files) and will enable it in the autobuild.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="68" href="#68" class="lnkocn">68</a></label>
  <li class="bullet" id="o68">
    Once the new language is added, you can randomly start translating all po  files in <tt>manual/po/</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="69" href="#69" class="lnkocn">69</a></label>
  <li class="bullet" id="o69">
    Don't forget you need <tt>make commit</tt> to ensure the translated manuals  are updated from the po files, before <tt>git commit -a</tt> and <tt>git push</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="70" href="#70" class="lnkocn">70</a></label>
  <h4 class="norm" id="o70"><a name="70"></a>
    <a name="h2" ></a><a name="about_the_debian_live_project" ></a><a name="about-project" ></a><a name="habout-project">2. About the Debian Live Project</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="71" href="#71" class="lnkocn">71</a></label>
  <h5 class="norm" id="o71"><a name="71"></a>
    <a name="2.1" ></a><a name="h2.1" ></a><a name="h2.1">2.1 Motivation</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="72" href="#72" class="lnkocn">72</a></label>
  <h6 class="norm" id="o72"><a name="72"></a>
    <a name="2.1.1" ></a><a name="h2.1.1" ></a><a name="h2.1.1">2.1.1 What is wrong with current live systems</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="73" href="#73" class="lnkocn">73</a></label>
  <p class="i0" id="o73">
    When Debian Live was initiated, there were already several Debian based live  systems available and they are doing a great job. From the Debian  perspective most of them have one or more of the following disadvantages:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="74" href="#74" class="lnkocn">74</a></label>
  <li class="bullet" id="o74">
    They are not Debian projects and therefore lack support from within  Debian.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="75" href="#75" class="lnkocn">75</a></label>
  <li class="bullet" id="o75">
    They mix different distributions, e.g. <b>testing</b> and <b>unstable</b>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="76" href="#76" class="lnkocn">76</a></label>
  <li class="bullet" id="o76">
    They support i386 only.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="77" href="#77" class="lnkocn">77</a></label>
  <li class="bullet" id="o77">
    They modify the behaviour and/or appearance of packages by stripping them  down to save space.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="78" href="#78" class="lnkocn">78</a></label>
  <li class="bullet" id="o78">
    They include packages from outside of the Debian archive.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="79" href="#79" class="lnkocn">79</a></label>
  <li class="bullet" id="o79">
    They ship custom kernels with additional patches that are not part of  Debian.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="80" href="#80" class="lnkocn">80</a></label>
  <li class="bullet" id="o80">
    They are large and slow due to their sheer size and thus not suitable for  rescue issues.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="81" href="#81" class="lnkocn">81</a></label>
  <li class="bullet" id="o81">
    They are not available in different flavours, e.g. CDs, DVDs, USB-stick  and netboot images.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="82" href="#82" class="lnkocn">82</a></label>
  <h6 class="norm" id="o82"><a name="82"></a>
    <a name="2.1.2" ></a><a name="h2.1.2" ></a><a name="h2.1.2">2.1.2 Why create our own live system?</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="83" href="#83" class="lnkocn">83</a></label>
  <p class="i0" id="o83">
    Debian is the Universal Operating System: Debian has a live system to show  around and to accurately represent the Debian system with the following main  advantages:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="84" href="#84" class="lnkocn">84</a></label>
  <li class="bullet" id="o84">
    It would be a subproject of Debian.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="85" href="#85" class="lnkocn">85</a></label>
  <li class="bullet" id="o85">
    It reflects the (current) state of one distribution.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="86" href="#86" class="lnkocn">86</a></label>
  <li class="bullet" id="o86">
    It runs on as many architectures as possible.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="87" href="#87" class="lnkocn">87</a></label>
  <li class="bullet" id="o87">
    It consists of unchanged Debian packages only.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="88" href="#88" class="lnkocn">88</a></label>
  <li class="bullet" id="o88">
    It does not contain any packages that are not in the Debian archive.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="89" href="#89" class="lnkocn">89</a></label>
  <li class="bullet" id="o89">
    It uses an unaltered Debian kernel with no additional patches.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="90" href="#90" class="lnkocn">90</a></label>
  <h5 class="norm" id="o90"><a name="90"></a>
    <a name="2.2" ></a><a name="h2.2" ></a><a name="h2.2">2.2 Philosophy</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="91" href="#91" class="lnkocn">91</a></label>
  <h6 class="norm" id="o91"><a name="91"></a>
    <a name="2.2.1" ></a><a name="h2.2.1" ></a><a name="h2.2.1">2.2.1 Only unchanged packages from Debian "main"</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="92" href="#92" class="lnkocn">92</a></label>
  <p class="i0" id="o92">
    We will only use packages from the Debian repository in the "main"  section. The non-free section is not part of Debian and therefore cannot be  used for official live system images.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="93" href="#93" class="lnkocn">93</a></label>
  <p class="i0" id="o93">
    We will not change any packages. Whenever we need to change something, we  will do that in coordination with its package maintainer in Debian.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="94" href="#94" class="lnkocn">94</a></label>
  <p class="i0" id="o94">
    As an exception, our own packages such as <i>live-boot</i>, <i>live-build</i> or  <i>live-config</i> may temporarily be used from our own repository for development  reasons (e.g. to create development snapshots). They will be uploaded to  Debian on a regular basis.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="95" href="#95" class="lnkocn">95</a></label>
  <h6 class="norm" id="o95"><a name="95"></a>
    <a name="2.2.2" ></a><a name="h2.2.2" ></a><a name="h2.2.2">2.2.2 No package configuration of the live system</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="96" href="#96" class="lnkocn">96</a></label>
  <p class="i0" id="o96">
    In this phase we will not ship or install sample or alternative  configurations. All packages are used in their default configuration as they  are after a regular installation of Debian.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="97" href="#97" class="lnkocn">97</a></label>
  <p class="i0" id="o97">
    Whenever we need a different default configuration, we will do that in  coordination with its package maintainer in Debian.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="98" href="#98" class="lnkocn">98</a></label>
  <p class="i0" id="o98">
    A system for configuring packages is provided using debconf in <tt>lb config</tt>  (use --preseed FILE) allowing custom configured packages to be installed in  your custom produced Debian Live images, but for official live images only  default configuration will be used. For more information, please see   <a href="#customization-overview">Customization overview</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="99" href="#99" class="lnkocn">99</a></label>
  <p class="i0" id="o99">
    Exception: There are a few essential changes needed to bring a live system  to life (e.g. configuring pam to allow empty passwords). These essential  changes have to be kept as minimal as possible and should be merged within  the Debian repository if possible.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="100" href="#100" class="lnkocn">100</a></label>
  <h5 class="norm" id="o100"><a name="100"></a>
    <a name="h2.3" ></a><a name="contact" ></a><a name="hcontact">2.3 Contact</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="101" href="#101" class="lnkocn">101</a></label>
  <li class="bullet" id="o101">
    <b>Mailing list</b>: The primary contact for the project is the mailing list  at ‹<a href="http://lists.debian.org/debian-live/" target="_top">http://lists.debian.org/debian-live/</a>›. You can email the list directly by  addressing your mail to ‹<a href="mailto:debian-live@lists.debian.org.">debian-live@lists.debian.org.</a>› The list archives are  available at ‹<a href="http://lists.debian.org/debian-live/" target="_top">http://lists.debian.org/debian-live/</a>›.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="102" href="#102" class="lnkocn">102</a></label>
  <li class="bullet" id="o102">
    <b>IRC</b>: A number of users and developers are present in the #debian-live  channel on irc.debian.org (OFTC). When asking a question on IRC, please be  patient for an answer. If no answer is forthcoming, please email the mailing  list.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="103" href="#103" class="lnkocn">103</a></label>
  <li class="bullet" id="o103">
    <b>BTS</b> : The Debian Bug Tracking System (BTS) contains details of bugs  reported by users and developers. Each bug is given a number, and is kept on  file until it is marked as having been dealt with. For more information,  please see  <a href="#bugs">Reporting bugs</a>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="104" href="#104" class="lnkocn">104</a></label>
  <li class="bullet" id="o104">
    <b>Wiki</b>: The Debian Live wiki at ‹<a href="http://wiki.debian.org/DebianLive" target="_top">http://wiki.debian.org/DebianLive</a>› is a  place to gather information, discuss applied technologies, and document  frameworks of Debian Live systems that go beyond the scope of this document.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="105" href="#105" class="lnkocn">105</a></label>
  <h2 class="norm" id="o105"><a name="105"></a>
    <a name="h">Benutzer</a>
  </h2>
</div>

<div class="substance">
  <label class="ocn"><a name="106" href="#106" class="lnkocn">106</a></label>
  <h4 class="norm" id="o106"><a name="106"></a>
    <a name="h3" ></a><a name="installation" ></a><a name="hinstallation">3. Installation</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="107" href="#107" class="lnkocn">107</a></label>
  <h5 class="norm" id="o107"><a name="107"></a>
    <a name="h3.1" ></a><a name="requirements" ></a><a name="hrequirements">3.1 Requirements</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="108" href="#108" class="lnkocn">108</a></label>
  <p class="i0" id="o108">
    Building Debian Live images has very few system requirements:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="109" href="#109" class="lnkocn">109</a></label>
  <li class="bullet" id="o109">
    Super user (root) access
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="110" href="#110" class="lnkocn">110</a></label>
  <li class="bullet" id="o110">
    An up-to-date version of <i>live-build</i>
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="111" href="#111" class="lnkocn">111</a></label>
  <li class="bullet" id="o111">
    A POSIX-compliant shell, such as <i>bash</i> or <i>dash</i>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="112" href="#112" class="lnkocn">112</a></label>
  <li class="bullet" id="o112">
    <i>debootstrap</i> or <i>cdebootstrap</i>
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="113" href="#113" class="lnkocn">113</a></label>
  <li class="bullet" id="o113">
    Linux 2.6.x
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="114" href="#114" class="lnkocn">114</a></label>
  <p class="i0" id="o114">
    Note that using Debian or a Debian-derived distribution is not required -  <i>live-build</i> will run on almost any distribution with the above requirements.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="115" href="#115" class="lnkocn">115</a></label>
  <h5 class="norm" id="o115"><a name="115"></a>
    <a name="h3.2" ></a><a name="installing-live-build" ></a><a name="hinstalling-live-build">3.2 Installing live-build</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="116" href="#116" class="lnkocn">116</a></label>
  <p class="i0" id="o116">
    You can install <i>live-build</i> in a number of different ways:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="117" href="#117" class="lnkocn">117</a></label>
  <li class="bullet" id="o117">
    From the Debian repository
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="118" href="#118" class="lnkocn">118</a></label>
  <li class="bullet" id="o118">
    From source
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="119" href="#119" class="lnkocn">119</a></label>
  <li class="bullet" id="o119">
    From snapshots
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="120" href="#120" class="lnkocn">120</a></label>
  <p class="i0" id="o120">
    If you are using Debian, the recommended way is to install <i>live-build</i> via  the Debian repository.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="121" href="#121" class="lnkocn">121</a></label>
  <h6 class="norm" id="o121"><a name="121"></a>
    <a name="3.2.1" ></a><a name="h3.2.1" ></a><a name="h3.2.1">3.2.1 From the Debian repository</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="122" href="#122" class="lnkocn">122</a></label>
  <p class="i0" id="o122">
    Simply install <i>live-build</i> like any other package:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="123" href="#123" class="lnkocn">123</a></label>
  <p class="code" id="o123">
    # apt-get install live-build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="124" href="#124" class="lnkocn">124</a></label>
  <p class="i0" id="o124">
    or
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="125" href="#125" class="lnkocn">125</a></label>
  <p class="code" id="o125">
    # aptitude install live-build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="126" href="#126" class="lnkocn">126</a></label>
  <h6 class="norm" id="o126"><a name="126"></a>
    <a name="3.2.2" ></a><a name="h3.2.2" ></a><a name="h3.2.2">3.2.2 From source</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="127" href="#127" class="lnkocn">127</a></label>
  <p class="i0" id="o127">
    <i>live-build</i> is developed using the Git version control system. On Debian  based systems, this is provided by the <i>git</i> package. To check out the  latest code, execute:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="128" href="#128" class="lnkocn">128</a></label>
  <p class="code" id="o128">
    $ git clone git://live.debian.net/git/live-build.git<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="129" href="#129" class="lnkocn">129</a></label>
  <p class="i0" id="o129">
    You can build and install your own Debian package by executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="130" href="#130" class="lnkocn">130</a></label>
  <p class="code" id="o130">
    $ cd live-build<br />
$ dpkg-buildpackage -rfakeroot -b -uc -us<br />
$ cd ..<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="131" href="#131" class="lnkocn">131</a></label>
  <p class="i0" id="o131">
    Now install whichever of the freshly built <tt>.deb</tt> files you were  interested in, e.g.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="132" href="#132" class="lnkocn">132</a></label>
  <p class="code" id="o132">
    # dpkg -i live-build_2.0.8-1_all.deb<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="133" href="#133" class="lnkocn">133</a></label>
  <p class="i0" id="o133">
    You can also install <i>live-build</i> directly to your system by executing:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="134" href="#134" class="lnkocn">134</a></label>
  <p class="code" id="o134">
    # make install<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="135" href="#135" class="lnkocn">135</a></label>
  <p class="i0" id="o135">
    and uninstall it with:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="136" href="#136" class="lnkocn">136</a></label>
  <p class="code" id="o136">
    # make uninstall<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="137" href="#137" class="lnkocn">137</a></label>
  <h6 class="norm" id="o137"><a name="137"></a>
    <a name="3.2.3" ></a><a name="h3.2.3" ></a><a name="h3.2.3">3.2.3 From 'snapshots'</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="138" href="#138" class="lnkocn">138</a></label>
  <p class="i0" id="o138">
    If you do not wish to build or install <i>live-build</i> from source, you can use  snapshots. These are built automatically from the latest version in Git and  are available on ‹<a href="http://live.debian.net/debian/" target="_top">http://live.debian.net/debian/</a>›.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="139" href="#139" class="lnkocn">139</a></label>
  <h5 class="norm" id="o139"><a name="139"></a>
    <a name="3.3" ></a><a name="h3.3" ></a><a name="h3.3">3.3 live-boot and live-config</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="140" href="#140" class="lnkocn">140</a></label>
  <p class="i0" id="o140">
    <b>Note:</b> You do not need to install <i>live-boot</i> or <i>live-config</i> on your system to create customized Debian Live systems. However, doing so will do no harm and is useful for reference purposes. If you only want the documentation, you may now install the <i>live-boot</i>-doc and <i>live-config</i>-doc packages separately.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="141" href="#141" class="lnkocn">141</a></label>
  <h6 class="norm" id="o141"><a name="141"></a>
    <a name="3.3.1" ></a><a name="h3.3.1" ></a><a name="h3.3.1">3.3.1 From the Debian repository</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="142" href="#142" class="lnkocn">142</a></label>
  <p class="i0" id="o142">
    Both <i>live-boot</i> and <i>live-config</i> are available from the Debian repository as  per  <a href="#installing-live-build">Installing live-build</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="143" href="#143" class="lnkocn">143</a></label>
  <h6 class="norm" id="o143"><a name="143"></a>
    <a name="3.3.2" ></a><a name="h3.3.2" ></a><a name="h3.3.2">3.3.2 From source</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="144" href="#144" class="lnkocn">144</a></label>
  <p class="i0" id="o144">
    To use the latest source from git, you can follow the process below. Please  ensure you are familiar with the terms mentioned in  <a href="#terms">Terms</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="145" href="#145" class="lnkocn">145</a></label>
  <li class="bullet" id="o145">
    Checkout the <i>live-boot</i> and <i>live-config</i> source
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="146" href="#146" class="lnkocn">146</a></label>
  <p class="code" id="o146">
    $ git clone git://live.debian.net/git/live-boot.git<br />
$ git clone git://live.debian.net/git/live-config.git<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="147" href="#147" class="lnkocn">147</a></label>
  <p class="i0" id="o147">
    Consult the <i>live-boot</i> and <i>live-config</i> man pages for details on customizing  if that is your reason for building these packages from source.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="148" href="#148" class="lnkocn">148</a></label>
  <li class="bullet" id="o148">
    Build <i>live-boot</i> and <i>live-config</i> .deb files
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="149" href="#149" class="lnkocn">149</a></label>
  <p class="i0" id="o149">
    You must build either on your target distribution or in a chroot containing  your target platform: this means if your target is <b>Wheezy</b> then you should  build against <b>Wheezy</b>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="150" href="#150" class="lnkocn">150</a></label>
  <p class="i0" id="o150">
    Use a personal builder such as <i>pbuilder</i> or <i>sbuild</i> if you need to  build <tt>live-boot</tt> for a target distribution that differs from your build  system. For example, for <b>Wheezy</b> live images, build <tt>live-boot</tt> in a <b>Wheezy</b>  chroot. If your target distribution happens to match your build system  distribution, you may build directly on the build system using  <tt>dpkg-buildpackage</tt> (provided by the <i>dpkg-dev</i> package):
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="151" href="#151" class="lnkocn">151</a></label>
  <p class="code" id="o151">
    $ cd live-boot<br />
$ dpkg-buildpackage -b -uc -us<br />
$ cd ../live-config<br />
$ dpkg-buildpackage -b -uc -us<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="152" href="#152" class="lnkocn">152</a></label>
  <li class="bullet" id="o152">
    Use all generated .deb files
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="153" href="#153" class="lnkocn">153</a></label>
  <p class="i0" id="o153">
    As <i>live-boot</i> and <i>live-config</i> are installed by <i>live-build</i> system, installing  the packages in the host system is not sufficient: you should treat the  generated .deb files like any other custom packages. Please see  <a href="#customizing-package-installation">Customizing  package installation</a>  for more  information. You should pay particular attention to  <a href="#additional-repositories">Additional  repositories</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="154" href="#154" class="lnkocn">154</a></label>
  <h6 class="norm" id="o154"><a name="154"></a>
    <a name="3.3.3" ></a><a name="h3.3.3" ></a><a name="h3.3.3">3.3.3 From 'snapshots'</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="155" href="#155" class="lnkocn">155</a></label>
  <p class="i0" id="o155">
    You can let <i>live-build</i> automatically use the latest snapshots of <i>live-boot</i>  and <i>live-config</i> by configuring a third-party repository in your <i>live-build</i>  configuration directory. Assuming you have already created a configuration  tree in the current directory with <tt>lb config</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="156" href="#156" class="lnkocn">156</a></label>
  <p class="code" id="o156">
    $ lb config --archives live.debian.net<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="157" href="#157" class="lnkocn">157</a></label>
  <h4 class="norm" id="o157"><a name="157"></a>
    <a name="h4" ></a><a name="the_basics" ></a><a name="the-basics" ></a><a name="hthe-basics">4. The basics</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="158" href="#158" class="lnkocn">158</a></label>
  <p class="i0" id="o158">
    This chapter contains a brief overview of the build process and instructions  for using the three most commonly used image types. The most versatile image  type, <tt>iso-hybrid</tt>, may be used on a virtual machine, optical media or USB  portable storage device. In certain special cases, such as the use of  persistence, <tt>usb-hdd</tt> may be more suitable for USB devices. The chapter  finishes with instructions for building and using a <tt>net</tt> type image,  which is a bit more involved due to the setup required on the server. This  is a slightly advanced topic for anyone who is not familiar already with  netbooting, but is included here because once the setup is done, it is a  very convenient way to test and deploy images for booting on the local  network without the hassle of dealing with image media.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="159" href="#159" class="lnkocn">159</a></label>
  <p class="i0" id="o159">
    Throughout the chapter, we will often refer to the default filenames  produced by <i>live-build</i>. If you are downloading a prebuilt image instead, the  actual filenames may vary.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="160" href="#160" class="lnkocn">160</a></label>
  <h5 class="norm" id="o160"><a name="160"></a>
    <a name="h4.1" ></a><a name="what-is-live" ></a><a name="hwhat-is-live">4.1 What is a live system?</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="161" href="#161" class="lnkocn">161</a></label>
  <p class="i0" id="o161">
    A live system usually means an operating system booted on a computer from a  removable medium, such as a CD-ROM or USB stick, or from a network, ready to  use without any installation on the usual drive(s), with auto-configuration  done at run time (see  <a href="#terms">Terms</a>).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="162" href="#162" class="lnkocn">162</a></label>
  <p class="i0" id="o162">
    With Debian Live, it's a Debian GNU/Linux operating system, built for one of  the supported architectures (currently amd64, i386, powerpc and sparc). It  is made from the following parts:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="163" href="#163" class="lnkocn">163</a></label>
  <li class="bullet" id="o163">
    <b>Linux kernel image</b>, usually named <tt>vmlinuz*</tt>
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="164" href="#164" class="lnkocn">164</a></label>
  <li class="bullet" id="o164">
    <b>Initial RAM disk image (initrd)</b>: a RAM disk set up for the Linux  boot, containing modules possibly needed to mount the System image and some  scripts to do it.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="165" href="#165" class="lnkocn">165</a></label>
  <li class="bullet" id="o165">
    <b>System image</b>: The operating system's filesystem image. Usually, a  SquashFS compressed filesystem is used to minimize the Debian Live image  size. Note that it is read-only. So, during boot the Debian Live system will  use a RAM disk and 'union' mechanism to enable writing files within the  running system. However, all modifications will be lost upon shutdown unless  optional persistence is used (see  <a href="#persistence">Persistence</a>).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="166" href="#166" class="lnkocn">166</a></label>
  <li class="bullet" id="o166">
    <b>Bootloader</b>: A small piece of code crafted to boot from the chosen  media, possibly presenting a prompt or menu to allow selection of  options/configuration. It loads the Linux kernel and its initrd to run with  an associated system filesystem. Different solutions can be used, depending  on the target media and format of the filesystem containing the previously  mentioned components: isolinux to boot from a CD or DVD in ISO9660 format,  syslinux for HDD or USB drive booting from a VFAT partition, extlinux for  ext2/3/4 and btrfs partitions, pxelinux for PXE netboot, GRUB for ext2/3/4  partitions, etc.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="167" href="#167" class="lnkocn">167</a></label>
  <p class="i0" id="o167">
    You can use <i>live-build</i> to build the system image from your specifications,  set up a Linux kernel, its initrd, and a bootloader to run them, all in one  media-dependant format (ISO9660 image, disk image, etc.).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="168" href="#168" class="lnkocn">168</a></label>
  <h5 class="norm" id="o168"><a name="168"></a>
    <a name="h4.2" ></a><a name="building-iso-hybrid" ></a><a name="hbuilding-iso-hybrid">4.2 First steps: building an ISO hybrid image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="169" href="#169" class="lnkocn">169</a></label>
  <p class="i0" id="o169">
    Regardless of the image type, you will need to perform the same basic steps  to build an image each time. As a first example, execute the following  sequence of <i>live-build</i> commands to create a basic ISO hybrid image  containing just the Debian standard system without X.org. It is suitable for  burning to CD or DVD media, and also to copy onto a USB stick.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="170" href="#170" class="lnkocn">170</a></label>
  <p class="i0" id="o170">
    First, run the <tt>lb config</tt> command. This will create a "config/" hierarchy  in the current directory for use by other commands:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="171" href="#171" class="lnkocn">171</a></label>
  <p class="code" id="o171">
    $ lb config<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="172" href="#172" class="lnkocn">172</a></label>
  <p class="i0" id="o172">
    No parameters are passed to <tt>lb config</tt>, so defaults for all of its  various options will be used. See  <a href="#lb-config">The lb config command</a>  for more  details.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="173" href="#173" class="lnkocn">173</a></label>
  <p class="i0" id="o173">
    Now that the "config/" hierarchy exists, build the image with the <tt>lb  build</tt> command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="174" href="#174" class="lnkocn">174</a></label>
  <p class="code" id="o174">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="175" href="#175" class="lnkocn">175</a></label>
  <p class="i0" id="o175">
    This process can take a while, depending on the speed of your network  connection. When it is complete, there should be a <tt>binary-hybrid.iso</tt>  image file, ready to use, in the current directory.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="176" href="#176" class="lnkocn">176</a></label>
  <h5 class="norm" id="o176"><a name="176"></a>
    <a name="h4.3" ></a><a name="using-iso-hybrid" ></a><a name="husing-iso-hybrid">4.3 Using an ISO hybrid live image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="177" href="#177" class="lnkocn">177</a></label>
  <p class="i0" id="o177">
    After either building or downloading an ISO hybrid image, which can be  obtained at ‹<a href="http://www.debian.org/CD/live/" target="_top">http://www.debian.org/CD/live/</a>›, the usual next step is to  prepare your media for booting, either CD-R(W) or DVD-R(W) optical media or  a USB stick.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="178" href="#178" class="lnkocn">178</a></label>
  <h6 class="norm" id="o178"><a name="178"></a>
    <a name="h4.3.1" ></a><a name="burning-iso-image" ></a><a name="hburning-iso-image">4.3.1 Burning an ISO image to a physical medium</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="179" href="#179" class="lnkocn">179</a></label>
  <p class="i0" id="o179">
    Burning an ISO image is easy. Just install wodim and use it from the  command-line to burn the image. For instance:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="180" href="#180" class="lnkocn">180</a></label>
  <p class="code" id="o180">
    # apt-get install wodim<br /><br />
$ wodim binary-hybrid.iso<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="181" href="#181" class="lnkocn">181</a></label>
  <h6 class="norm" id="o181"><a name="181"></a>
    <a name="h4.3.2" ></a><a name="copying-iso-hybrid-to-usb" ></a><a name="hcopying-iso-hybrid-to-usb">4.3.2 Copying an ISO hybrid image to a USB stick</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="182" href="#182" class="lnkocn">182</a></label>
  <p class="i0" id="o182">
    ISO images prepared with the <tt>isohybrid</tt> command, like the images produced  by the default <tt>iso-hybrid</tt> binary image type, can be simply copied to a  USB stick with the <tt>dd</tt> program or an equivalent. Plug in a USB stick with  a size large enough for your image file and determine which device it is,  which we hereafter refer to as <tt>${USBSTICK}</tt>. This is the device file of  your key, such as <tt>/dev/sdb</tt>, not a partition, such as <tt>/dev/sdb1</tt>! You  can find the right device name by looking in <tt>dmesg</tt>'s output after  plugging in the stick, or better yet, <tt>ls -l /dev/disk/by-id</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="183" href="#183" class="lnkocn">183</a></label>
  <p class="i0" id="o183">
    Once you are certain you have the correct device name, use the <tt>dd</tt>  command to copy the image to the stick. <b>This will definitely overwrite  any previous contents on your stick!</b>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="184" href="#184" class="lnkocn">184</a></label>
  <p class="code" id="o184">
    $ dd if=binary-hybrid.iso of=${USBSTICK}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="185" href="#185" class="lnkocn">185</a></label>
  <h6 class="norm" id="o185"><a name="185"></a>
    <a name="h4.3.3" ></a><a name="booting-live-media" ></a><a name="hbooting-live-media">4.3.3 Booting the live media</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="186" href="#186" class="lnkocn">186</a></label>
  <p class="i0" id="o186">
    The first time you boot your live media, whether CD, DVD, USB key, or PXE  boot, some setup in your computer's BIOS may be needed first. Since BIOSes  vary greatly in features and key bindings, we cannot get into the topic in  depth here. Some BIOSes provide a key to bring up a menu of boot devices at  boot time, which is the easiest way if it is available on your  system. Otherwise, you need to enter the BIOS configuration menu and change  the boot order to place the boot device for the live system before your  normal boot device.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="187" href="#187" class="lnkocn">187</a></label>
  <p class="i0" id="o187">
    Once you've booted the media, you are presented with a boot menu. If you  just press enter here, the system will boot using the default entry,  <tt>Live</tt> and default options. For more information about boot options, see  the "help" entry in the menu and also the <tt>live-boot</tt> and <tt>live-config</tt>  man pages found within the live system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="188" href="#188" class="lnkocn">188</a></label>
  <p class="i0" id="o188">
    Assuming you've selected <tt>Live</tt> and booted a default desktop live image,  after the boot messages scroll by, you should be automatically logged into  the <tt>user</tt> account and see a desktop, ready to use. If you've booted a  console-only image, such as <tt>standard</tt> or <tt>rescue</tt> flavour prebuilt  images, you should be automatically logged in on the console to the <tt>user</tt>  account and see a shell prompt, ready to use.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="189" href="#189" class="lnkocn">189</a></label>
  <h5 class="norm" id="o189"><a name="189"></a>
    <a name="h4.4" ></a><a name="using-virtual-machine" ></a><a name="husing-virtual-machine">4.4 Using a virtual machine for testing</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="190" href="#190" class="lnkocn">190</a></label>
  <p class="i0" id="o190">
    It can be a great time-saver for the development of live images to run them  in a virtual machine (VM). This is not without its caveats:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="191" href="#191" class="lnkocn">191</a></label>
  <li class="bullet" id="o191">
    Running a VM requires enough RAM for both the guest OS and the host and a  CPU with hardware support for virtualization is recommended.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="192" href="#192" class="lnkocn">192</a></label>
  <li class="bullet" id="o192">
    There are some inherent limitations to running on a VM, e.g. poor video  performance, limited choice of emulated hardware.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="193" href="#193" class="lnkocn">193</a></label>
  <li class="bullet" id="o193">
    When developing for specific hardware, there is no substitute for running  on the hardware itself.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="194" href="#194" class="lnkocn">194</a></label>
  <li class="bullet" id="o194">
    Occasionally there are bugs that relate only to running in a VM. When in  doubt, test your image directly on the hardware.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="195" href="#195" class="lnkocn">195</a></label>
  <p class="i0" id="o195">
    Provided you can work within these constraints, survey the available VM  software and choose one that is suitable for your needs.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="196" href="#196" class="lnkocn">196</a></label>
  <h6 class="norm" id="o196"><a name="196"></a>
    <a name="h4.4.1" ></a><a name="testing-iso-with-qemu" ></a><a name="htesting-iso-with-qemu">4.4.1 Testing an ISO image with QEMU</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="197" href="#197" class="lnkocn">197</a></label>
  <p class="i0" id="o197">
    The most versatile VM in Debian is QEMU. If your processor has hardware  support for virtualization, use the <tt>qemu-kvm</tt> package; the <tt>qemu-kvm</tt>  package description briefly lists the requirements.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="198" href="#198" class="lnkocn">198</a></label>
  <p class="i0" id="o198">
    First, install <tt>qemu-kvm</tt> if your processor supports it. If not, install  <tt>qemu</tt>, in which case the program name is <tt>qemu</tt> instead of <tt>kvm</tt> in  the following examples. The <tt>qemu-utils</tt> package is also valuable for  creating virtual disk images with <tt>qemu-img</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="199" href="#199" class="lnkocn">199</a></label>
  <p class="code" id="o199">
    # apt-get install qemu-kvm qemu-utils<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="200" href="#200" class="lnkocn">200</a></label>
  <p class="i0" id="o200">
    Booting an ISO image is simple:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="201" href="#201" class="lnkocn">201</a></label>
  <p class="code" id="o201">
    $ kvm -cdrom binary-hybrid.iso<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="202" href="#202" class="lnkocn">202</a></label>
  <p class="i0" id="o202">
    See the man pages for more details.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="203" href="#203" class="lnkocn">203</a></label>
  <h6 class="norm" id="o203"><a name="203"></a>
    <a name="h4.4.2" ></a><a name="testing-iso-with-virtualbox" ></a><a name="htesting-iso-with-virtualbox">4.4.2 Testing an ISO image with virtualbox-ose</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="204" href="#204" class="lnkocn">204</a></label>
  <p class="i0" id="o204">
    In order to test the ISO with <tt>virtualbox-ose</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="205" href="#205" class="lnkocn">205</a></label>
  <p class="code" id="o205">
    # apt-get install virtualbox-ose virtualbox-ose-dkms<br /><br />
$ virtualbox<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="206" href="#206" class="lnkocn">206</a></label>
  <p class="i0" id="o206">
    Create a new virtual machine, change the storage settings to use  <tt>binary-hybrid.iso</tt> as the CD/DVD device, and start the machine.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="207" href="#207" class="lnkocn">207</a></label>
  <p class="i0" id="o207">
    Note: For live systems containing X.org that you want to test with  <tt>virtualbox-ose</tt>, you may wish to include the VirtualBox X.org driver  package, <tt>virtualbox-ose-guest-x11</tt>, in your <i>live-build</i>  configuration. Otherwise, the resolution is limited to 800x600.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="208" href="#208" class="lnkocn">208</a></label>
  <p class="code" id="o208">
    $ echo virtualbox-ose-guest-x11 >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="209" href="#209" class="lnkocn">209</a></label>
  <h5 class="norm" id="o209"><a name="209"></a>
    <a name="h4.5" ></a><a name="building-usb-hdd" ></a><a name="hbuilding-usb-hdd">4.5 Building a USB/HDD image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="210" href="#210" class="lnkocn">210</a></label>
  <p class="i0" id="o210">
    Building a USB/HDD image is similar to ISO hybrid in all respects except you  specify <tt>-b usb-hdd</tt> and the resulting filename is <tt>binary.img</tt> which  cannot be burnt to optical media. It is suitable for booting from USB  sticks, USB hard drives, and various other portable storage  devices. Normally, an ISO hybrid image can be used for this purpose instead,  but if you have a BIOS which does not handle hybrid images properly, or want  to use the remaining space on the media for some purpose, such as a  persistence partition, you need a USB/HDD image.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="211" href="#211" class="lnkocn">211</a></label>
  <p class="i0" id="o211">
    Note: if you created an ISO hybrid image with the previous example, you will  need to clean up your working directory with the <tt>lb clean</tt> command (see   <a href="#lb-clean">The lb clean command</a>):
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="212" href="#212" class="lnkocn">212</a></label>
  <p class="code" id="o212">
    # lb clean --binary<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="213" href="#213" class="lnkocn">213</a></label>
  <p class="i0" id="o213">
    Run the <tt>lb config</tt> command as before, except this time specifying the  USB/HDD image type:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="214" href="#214" class="lnkocn">214</a></label>
  <p class="code" id="o214">
    $ lb config -b usb-hdd<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="215" href="#215" class="lnkocn">215</a></label>
  <p class="i0" id="o215">
    Now build the image with the <tt>lb build</tt> command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="216" href="#216" class="lnkocn">216</a></label>
  <p class="code" id="o216">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="217" href="#217" class="lnkocn">217</a></label>
  <p class="i0" id="o217">
    When the build finishes, a <tt>binary.img</tt> file should be present in the  current directory.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="218" href="#218" class="lnkocn">218</a></label>
  <h5 class="norm" id="o218"><a name="218"></a>
    <a name="h4.6" ></a><a name="using-usb-hdd-image" ></a><a name="husing-usb-hdd-image">4.6 Using a USB/HDD image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="219" href="#219" class="lnkocn">219</a></label>
  <p class="i0" id="o219">
    The generated binary image contains a VFAT partition and the syslinux  bootloader, ready to be directly written on a USB stick. Since using a  USB/HDD image is just like using an ISO hybrid image on USB, follow the  instructions in  <a href="#using-iso-hybrid">Using an ISO hybrid live image</a>,  except  use the filename <tt>binary.img</tt> instead of <tt>binary-hybrid.iso</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="220" href="#220" class="lnkocn">220</a></label>
  <h6 class="norm" id="o220"><a name="220"></a>
    <a name="h4.6.1" ></a><a name="testing-usb-hdd-with-qemu" ></a><a name="htesting-usb-hdd-with-qemu">4.6.1 Testing a USB/HDD image with Qemu</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="221" href="#221" class="lnkocn">221</a></label>
  <p class="i0" id="o221">
    First, install QEMU as described above in  <a href="#testing-iso-with-qemu">Testing an ISO image with  QEMU</a>.  Then run <tt>kvm</tt> or <tt>qemu</tt>, depending on  which version your host system needs, specifying <tt>binary.img</tt> as the first  hard drive.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="222" href="#222" class="lnkocn">222</a></label>
  <p class="code" id="o222">
    $ kvm -hda binary.img<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="223" href="#223" class="lnkocn">223</a></label>
  <h6 class="norm" id="o223"><a name="223"></a>
    <a name="h4.6.2" ></a><a name="using-usb-extra-space" ></a><a name="husing-usb-extra-space">4.6.2 Using the space left on a USB stick</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="224" href="#224" class="lnkocn">224</a></label>
  <p class="i0" id="o224">
    To use the remaining free space after copying <tt>binary.img</tt> to a USB stick,  use a partitioning tool such as <tt>gparted</tt> or <tt>parted</tt> to create a new  partition on the stick. The first partition will be used by the Debian Live  system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="225" href="#225" class="lnkocn">225</a></label>
  <p class="code" id="o225">
    # gparted ${USBSTICK}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="226" href="#226" class="lnkocn">226</a></label>
  <p class="i0" id="o226">
    After the partition is created, where <tt>${PARTITION}</tt> is the name of the  partition, such as <tt>/dev/sdb2</tt>, you have to create a filesystem on it. One  possible choice would be ext4.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="227" href="#227" class="lnkocn">227</a></label>
  <p class="code" id="o227">
    # mkfs.ext4 ${PARTITION}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="228" href="#228" class="lnkocn">228</a></label>
  <p class="i0" id="o228">
    Note: If you want to use the extra space with Windows, apparently that OS  cannot normally access any partitions but the first. Some solutions to this  problem have been discussed on our  <a href="#contact">mailing list</a>,  but it seems  there are no easy answers.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="229" href="#229" class="lnkocn">229</a></label>
  <p class="i0" id="o229">
    <b>Remember: Every time you install a new binary.img on the stick, all data on the stick will be lost because the partition table is overwritten by the contents of the image, so back up your extra partition first to restore again after updating the live image.</b>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="230" href="#230" class="lnkocn">230</a></label>
  <h5 class="norm" id="o230"><a name="230"></a>
    <a name="h4.7" ></a><a name="building-netboot-image" ></a><a name="hbuilding-netboot-image">4.7 Building a netboot image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="231" href="#231" class="lnkocn">231</a></label>
  <p class="i0" id="o231">
    The following sequence of commands will create a basic netboot image  containing the Debian standard system without X.org. It is suitable for  booting over the network.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="232" href="#232" class="lnkocn">232</a></label>
  <p class="i0" id="o232">
    Note: if you performed any previous examples, you will need to clean up your  working directory with the <tt>lb clean</tt> command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="233" href="#233" class="lnkocn">233</a></label>
  <p class="code" id="o233">
    # lb clean --binary<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="234" href="#234" class="lnkocn">234</a></label>
  <p class="i0" id="o234">
    Run the <tt>lb config</tt> command as follows to configure your image for  netbooting:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="235" href="#235" class="lnkocn">235</a></label>
  <p class="code" id="o235">
    $ lb config -b net --net-root-path "/srv/debian-live" --net-root-server "192.168.0.1"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="236" href="#236" class="lnkocn">236</a></label>
  <p class="i0" id="o236">
    In contrast with the ISO and USB/HDD images, netbooting does not, itself,  serve the filesystem image to the client, so the files must be served via  NFS. The <tt>--net-root-path</tt> and <tt>--net-root-server</tt> options specify the  location and server, respectively, of the NFS server where the filesytem  image will be located at boot time. Make sure these are set to suitable  values for your network and server.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="237" href="#237" class="lnkocn">237</a></label>
  <p class="i0" id="o237">
    Now build the image with the <tt>lb build</tt> command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="238" href="#238" class="lnkocn">238</a></label>
  <p class="code" id="o238">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="239" href="#239" class="lnkocn">239</a></label>
  <p class="i0" id="o239">
    In a network boot, the client runs a small piece of software which usually  resides on the EPROM of the Ethernet card. This program sends a DHCP request  to get an IP address and information about what to do next. Typically, the  next step is getting a higher level bootloader via the TFTP protocol. That  could be pxelinux, GRUB, or even boot directly to an operating system like  Linux.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="240" href="#240" class="lnkocn">240</a></label>
  <p class="i0" id="o240">
    For example, if you unpack the generated <tt>binary-net.tar.gz</tt> archive in  the <tt>/srv/debian-live</tt> directory, you'll find the filesystem image in  <tt>live/filesystem.squashfs</tt> and the kernel, initrd and pxelinux bootloader  in <tt>tftpboot/debian-live/i386</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="241" href="#241" class="lnkocn">241</a></label>
  <p class="i0" id="o241">
    We must now configure three services on the server to enable netboot: the  DHCP server, the TFTP server and the NFS server.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="242" href="#242" class="lnkocn">242</a></label>
  <h6 class="norm" id="o242"><a name="242"></a>
    <a name="4.7.1" ></a><a name="h4.7.1" ></a><a name="h4.7.1">4.7.1 DHCP server</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="243" href="#243" class="lnkocn">243</a></label>
  <p class="i0" id="o243">
    We must configure our network's DHCP server to be sure to give an IP address  to the netbooting client system, and to advertise the location of the PXE  bootloader.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="244" href="#244" class="lnkocn">244</a></label>
  <p class="i0" id="o244">
    Here is an example for inspiration, written for the ISC DHCP server  <tt>isc-dhcp-server</tt> in the <tt>/etc/dhcp/dhcpd.conf</tt> configuration file:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="245" href="#245" class="lnkocn">245</a></label>
  <p class="code" id="o245">
    # /etc/dhcp/dhcpd.conf - configuration file for isc-dhcp-server<br /><br />
ddns-update-style none;<br /><br />
option domain-name "example.org";<br />
option domain-name-servers ns1.example.org, ns2.example.org;<br /><br />
default-lease-time 600;<br />
max-lease-time 7200;<br /><br />
log-facility local7;<br /><br />
subnet 192.168.0.0 netmask 255.255.255.0 {<br />
&nbsp;&nbsp;&nbsp;range 192.168.0.1 192.168.0.254;<br />
&nbsp;&nbsp;&nbsp;next-server servername;<br />
&nbsp;&nbsp;&nbsp;filename "pxelinux.0";<br />
}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="246" href="#246" class="lnkocn">246</a></label>
  <h6 class="norm" id="o246"><a name="246"></a>
    <a name="4.7.2" ></a><a name="h4.7.2" ></a><a name="h4.7.2">4.7.2 TFTP server</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="247" href="#247" class="lnkocn">247</a></label>
  <p class="i0" id="o247">
    This serves the kernel and initial ramdisk to the system at run time.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="248" href="#248" class="lnkocn">248</a></label>
  <p class="i0" id="o248">
    You should install the tftpd-hpa package. It can serve all files contained  inside a root directory, usually <tt>/srv/tftp</tt>. To let it serve files inside  <tt>/srv/debian-live/tftpboot</tt>, run as root the following command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="249" href="#249" class="lnkocn">249</a></label>
  <p class="code" id="o249">
    # dpkg-reconfigure -plow tftpd-hpa<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="250" href="#250" class="lnkocn">250</a></label>
  <p class="i0" id="o250">
    and fill in the new tftp server directory when being asked about it.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="251" href="#251" class="lnkocn">251</a></label>
  <h6 class="norm" id="o251"><a name="251"></a>
    <a name="4.7.3" ></a><a name="h4.7.3" ></a><a name="h4.7.3">4.7.3 NFS server</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="252" href="#252" class="lnkocn">252</a></label>
  <p class="i0" id="o252">
    Once the guest computer has downloaded and booted a Linux kernel and loaded  its initrd, it will try to mount the Live filesystem image through a NFS  server.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="253" href="#253" class="lnkocn">253</a></label>
  <p class="i0" id="o253">
    You need to install the <tt>nfs-kernel-server</tt> package.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="254" href="#254" class="lnkocn">254</a></label>
  <p class="i0" id="o254">
    Then, make the filesystem image available through NFS by adding a line like  the following to <tt>/etc/exports</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="255" href="#255" class="lnkocn">255</a></label>
  <p class="code" id="o255">
    /srv/debian-live *(ro,async,no_root_squash,no_subtree_check)<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="256" href="#256" class="lnkocn">256</a></label>
  <p class="i0" id="o256">
    and tell the NFS server about this new export with the following command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="257" href="#257" class="lnkocn">257</a></label>
  <p class="code" id="o257">
    # exportfs -rv<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="258" href="#258" class="lnkocn">258</a></label>
  <p class="i0" id="o258">
    Setting up these three services can be a little tricky. You might need some  patience to get all of them working together. For more information, see the  syslinux wiki at ‹<a href="http://syslinux.zytor.com/wiki/index.php/PXELINUX" target="_top">http://syslinux.zytor.com/wiki/index.php/PXELINUX</a>› or the  Debian Installer Manual's TFTP Net Booting section at  ‹<a href="http://d-i.alioth.debian.org/manual/en.i386/ch04s05.html" target="_top">http://d-i.alioth.debian.org/manual/en.i386/ch04s05.html</a>›. They might help,  as their processes are very similar.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="259" href="#259" class="lnkocn">259</a></label>
  <h6 class="norm" id="o259"><a name="259"></a>
    <a name="4.7.4" ></a><a name="h4.7.4" ></a><a name="h4.7.4">4.7.4 Netboot testing HowTo</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="260" href="#260" class="lnkocn">260</a></label>
  <p class="i0" id="o260">
    Netboot image creation is made easy with <i>live-build</i> magic, but testing the  images on physical machines can be really time consuming.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="261" href="#261" class="lnkocn">261</a></label>
  <p class="i0" id="o261">
    To make our life easier, we can use virtualization. There are two solutions.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="262" href="#262" class="lnkocn">262</a></label>
  <h6 class="norm" id="o262"><a name="262"></a>
    <a name="4.7.5" ></a><a name="h4.7.5" ></a><a name="h4.7.5">4.7.5 Qemu</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="263" href="#263" class="lnkocn">263</a></label>
  <li class="bullet" id="o263">
    Install <tt>qemu</tt>, <tt>bridge-utils</tt>, <tt>sudo</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="264" href="#264" class="lnkocn">264</a></label>
  <p class="i0" id="o264">
    Edit <tt>/etc/qemu-ifup</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="265" href="#265" class="lnkocn">265</a></label>
  <p class="code" id="o265">
    #!/bin/sh<br />
sudo -p "Password for $0:" /sbin/ifconfig $1 172.20.0.1<br />
echo "Executing /etc/qemu-ifup"<br />
echo "Bringing up $1 for bridged mode..."<br />
sudo /sbin/ifconfig $1 0.0.0.0 promisc up<br />
echo "Adding $1 to br0..."<br />
sudo /usr/sbin/brctl addif br0 $1<br />
sleep 2<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="266" href="#266" class="lnkocn">266</a></label>
  <p class="i0" id="o266">
    Get, or build a <tt>grub-floppy-netboot</tt> (in the svn).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="267" href="#267" class="lnkocn">267</a></label>
  <p class="i0" id="o267">
    Launch <tt>qemu</tt> with "<tt>-net nic,vlan=0 -net tap,vlan=0,ifname=tun0</tt>"
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="268" href="#268" class="lnkocn">268</a></label>
  <h6 class="norm" id="o268"><a name="268"></a>
    <a name="4.7.6" ></a><a name="h4.7.6" ></a><a name="h4.7.6">4.7.6 VMWare Player</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="269" href="#269" class="lnkocn">269</a></label>
  <li class="bullet" id="o269">
    Install VMWare Player ("free as in beer" edition)
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="270" href="#270" class="lnkocn">270</a></label>
  <li class="bullet" id="o270">
    Create a PXETester directory, and create a text file called <tt>pxe.vwx</tt>  inside
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="271" href="#271" class="lnkocn">271</a></label>
  <li class="bullet" id="o271">
    Paste this text inside:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="272" href="#272" class="lnkocn">272</a></label>
  <p class="code" id="o272">
    #!/usr/bin/vmware<br />
config.version = "8"<br />
virtualHW.version = "4"<br />
memsize = "512"<br />
MemAllowAutoScaleDown = "FALSE"<br /><br />
ide0:0.present = "FALSE"<br />
ide1:0.present = "FALSE"<br />
floppy0.present = "FALSE"<br />
sound.present = "FALSE"<br />
tools.remindInstall = "FALSE"<br /><br />
ethernet0.present = "TRUE"<br />
ethernet0.addressType = "generated"<br /><br />
displayName = "Test Boot PXE"<br />
guestOS = "other"<br /><br />
ethernet0.generatedAddress = "00:0c:29:8d:71:3b"<br />
uuid.location = "56 4d 83 72 5c c4 de 3f-ae 9e 07 91 1d 8d 71 3b"<br />
uuid.bios = "56 4d 83 72 5c c4 de 3f-ae 9e 07 91 1d 8d 71 3b"<br />
ethernet0.generatedAddressOffset = "0"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="273" href="#273" class="lnkocn">273</a></label>
  <li class="bullet" id="o273">
    You can play with this configuration file (e.g. change memory limit to  256)
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="274" href="#274" class="lnkocn">274</a></label>
  <li class="bullet" id="o274">
    Double click on this file (or run VMWare player and select this file).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="275" href="#275" class="lnkocn">275</a></label>
  <li class="bullet" id="o275">
    When running just press space if that strange question comes up...
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="276" href="#276" class="lnkocn">276</a></label>
  <h4 class="norm" id="o276"><a name="276"></a>
    <a name="h5" ></a><a name="overview_of_tools" ></a><a name="overview-of-tools" ></a><a name="hoverview-of-tools">5. Overview of tools</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="277" href="#277" class="lnkocn">277</a></label>
  <p class="i0" id="o277">
    This chapter contains an overview of the three main tools used in building  Debian Live systems: <i>live-build</i>, <i>live-boot</i> and <i>live-config</i>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="278" href="#278" class="lnkocn">278</a></label>
  <h5 class="norm" id="o278"><a name="278"></a>
    <a name="h5.1" ></a><a name="live-build" ></a><a name="hlive-build">5.1 live-build</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="279" href="#279" class="lnkocn">279</a></label>
  <p class="i0" id="o279">
    <i>live-build</i> is a collection of scripts to build Debian Live systems. These  scripts are also referred to as "commands".
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="280" href="#280" class="lnkocn">280</a></label>
  <p class="i0" id="o280">
    The idea behind <i>live-build</i> is to be a framework that uses a configuration  directory to completely automate and customize all aspects of building a  Live image.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="281" href="#281" class="lnkocn">281</a></label>
  <p class="i0" id="o281">
    Many concepts are similar to those in the debhelper Debian package tools  written by Joey Hess:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="282" href="#282" class="lnkocn">282</a></label>
  <li class="bullet" id="o282">
    The scripts have a central location for configuring their operation. In  debhelper, this is the <tt>debian/</tt> subdirectory of a package tree. For  example, dh_install will look, amongst others, for a file called  <tt>debian/install</tt> to determine which files should exist in a particular  binary package. In much the same way, <i>live-build</i> stores its configuration  entirely under a <tt>config/</tt> subdirectory.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="283" href="#283" class="lnkocn">283</a></label>
  <li class="bullet" id="o283">
    The scripts are independent - that is to say, it is always safe to run  each command.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="284" href="#284" class="lnkocn">284</a></label>
  <p class="i0" id="o284">
    Unlike debhelper, <i>live-build</i> contains a tool to generate a skeleton  configuration directory, <tt>lb config</tt>. This could be considered to be  similar to tools such as <tt>dh-make</tt>. For more information about <tt>lb  config</tt>, please see  <a href="#lb-config">The lb config command</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="285" href="#285" class="lnkocn">285</a></label>
  <p class="i0" id="o285">
    The remainder of this section discusses the three most important commands:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="286" href="#286" class="lnkocn">286</a></label>
  <li class="bullet" id="o286">
    <b>lb config</b>: Responsible for initializing a Live system configuration  directory. See  <a href="#lb-config">The lb config command</a>  for more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="287" href="#287" class="lnkocn">287</a></label>
  <li class="bullet" id="o287">
    <b>lb build</b>: Responsible for starting a Live system build. See  <a href="#lb-build">The lb  build command</a>  for more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="288" href="#288" class="lnkocn">288</a></label>
  <li class="bullet" id="o288">
    <b>lb clean</b>: Responsible for removing parts of a Live system build. See   <a href="#lb-clean">The lb clean command</a>  for more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="289" href="#289" class="lnkocn">289</a></label>
  <h6 class="norm" id="o289"><a name="289"></a>
    <a name="h5.1.1" ></a><a name="lb-config" ></a><a name="hlb-config">5.1.1 The <tt>lb config</tt> command</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="290" href="#290" class="lnkocn">290</a></label>
  <p class="i0" id="o290">
    As discussed in  <a href="#live-build">live-build</a>,  the scripts that make up <i>live-build</i>  read their configuration with the <tt>source</tt> command from a single directory  named <tt>config/</tt>. As constructing this directory by hand would be  time-consuming and error-prone, the <tt>lb config</tt> command can be used to  create skeleton configuration folders.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="291" href="#291" class="lnkocn">291</a></label>
  <p class="i0" id="o291">
    Issuing <tt>lb config</tt> without any arguments creates a <tt>config/</tt>  subdirectory which it populates with some default settings, and a skeleton  <tt>auto/</tt> subdirectory tree.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="292" href="#292" class="lnkocn">292</a></label>
  <p class="code" id="o292">
    $ lb config<br />
P: Considering defaults defined in /etc/live/build.conf<br />
P: Creating config tree<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="293" href="#293" class="lnkocn">293</a></label>
  <p class="i0" id="o293">
    Using <tt>lb config</tt> without any arguments would be suitable for users who  need a very basic image, or who intend to later provide a more complete  configuration via <tt>auto/config</tt> (see  <a href="#managing-a-configuration">Managing a  configuration</a>  for details).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="294" href="#294" class="lnkocn">294</a></label>
  <p class="i0" id="o294">
    Normally, you will want to specify some options. For example, to include the  'gnome' package list in your configuration:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="295" href="#295" class="lnkocn">295</a></label>
  <p class="code" id="o295">
    $ lb config -p gnome<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="296" href="#296" class="lnkocn">296</a></label>
  <p class="i0" id="o296">
    It is possible to specify many options, such as:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="297" href="#297" class="lnkocn">297</a></label>
  <p class="code" id="o297">
    $ lb config --binary-images net --hostname live-machine --username live-user ...<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="298" href="#298" class="lnkocn">298</a></label>
  <p class="i0" id="o298">
    A full list of options is available in the <tt>lb_config</tt> man page.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="299" href="#299" class="lnkocn">299</a></label>
  <h6 class="norm" id="o299"><a name="299"></a>
    <a name="h5.1.2" ></a><a name="lb-build" ></a><a name="hlb-build">5.1.2 The <tt>lb build</tt> command</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="300" href="#300" class="lnkocn">300</a></label>
  <p class="i0" id="o300">
    The <tt>lb build</tt> command reads in your configuration from the <tt>config/</tt>  directory. It then runs the lower level commands needed to build your Live  system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="301" href="#301" class="lnkocn">301</a></label>
  <h6 class="norm" id="o301"><a name="301"></a>
    <a name="h5.1.3" ></a><a name="lb-clean" ></a><a name="hlb-clean">5.1.3 The <tt>lb clean</tt> command</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="302" href="#302" class="lnkocn">302</a></label>
  <p class="i0" id="o302">
    It is the job of the <tt>lb clean</tt> command to remove various parts of a build  so subsequent builds can start from a clean state. By default, <tt>chroot</tt>,  <tt>binary</tt> and <tt>source</tt> stages are cleaned, but the cache is left  intact. Also, individual stages can be cleaned. For example, if you have  made changes that only affect the binary stage, use <tt>lb clean --binary</tt>  prior to building a new binary. See the <tt>lb_clean</tt> man page for a full  list of options.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="303" href="#303" class="lnkocn">303</a></label>
  <h5 class="norm" id="o303"><a name="303"></a>
    <a name="h5.2" ></a><a name="live-boot" ></a><a name="hlive-boot">5.2 The live-boot package</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="304" href="#304" class="lnkocn">304</a></label>
  <p class="i0" id="o304">
    <i>live-boot</i> is a collection of scripts providing hooks for the  initramfs-tools, used to generate an initramfs capable of booting live  systems, such as those created by <i>live-build</i>. This includes the Debian Live  ISOs, netboot tarballs, and USB stick images.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="305" href="#305" class="lnkocn">305</a></label>
  <p class="i0" id="o305">
    At boot time it will look for read-only media containing a <tt>/live/</tt>  directory where a root filesystem (often a compressed filesystem image like  squashfs) is stored. If found, it will create a writable environment, using  aufs, for Debian like systems to boot from.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="306" href="#306" class="lnkocn">306</a></label>
  <p class="i0" id="o306">
    More information on initial ramfs in Debian can be found in the Debian Linux  Kernel Handbook at ‹<a href="http://kernel-handbook.alioth.debian.org/" target="_top">http://kernel-handbook.alioth.debian.org/</a>› in the chapter  on initramfs.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="307" href="#307" class="lnkocn">307</a></label>
  <h5 class="norm" id="o307"><a name="307"></a>
    <a name="h5.3" ></a><a name="live-config" ></a><a name="hlive-config">5.3 The live-config package</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="308" href="#308" class="lnkocn">308</a></label>
  <p class="i0" id="o308">
    <i>live-config</i> consists of the scripts that run at boot time after <i>live-boot</i> to  configure the live system automatically. It handles such tasks as setting  the hostname, locales and timezone, creating the live user, inhibiting cron  jobs and performing autologin of the live user.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="309" href="#309" class="lnkocn">309</a></label>
  <h4 class="norm" id="o309"><a name="309"></a>
    <a name="h6" ></a><a name="managing_a_configuration" ></a><a name="managing-a-configuration" ></a><a name="hmanaging-a-configuration">6. Managing a configuration</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="310" href="#310" class="lnkocn">310</a></label>
  <p class="i0" id="o310">
    This chapter explains how to manage a live configuration from initial  creation, through successive revisions and successive releases of both the  <i>live-build</i> software and the live image itself.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="311" href="#311" class="lnkocn">311</a></label>
  <h5 class="norm" id="o311"><a name="311"></a>
    <a name="6.1" ></a><a name="h6.1" ></a><a name="h6.1">6.1 Use auto to manage configuration changes</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="312" href="#312" class="lnkocn">312</a></label>
  <p class="i0" id="o312">
    Live configurations rarely are perfect on the first try. You'll likely need  to make a series of revisions until you are satisfied. However,  inconsistencies can creep into your configuration from one revision to the  next if you aren't careful. The main problem is, once a variable is given a  default value, that value will not be recomputed from other variables that  may change in later revisions.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="313" href="#313" class="lnkocn">313</a></label>
  <p class="i0" id="o313">
    For example, when the distribution is first set, many 'dependent' variables  are given default values that suit that distribution. However, if you later  decide to change the distribution, those dependent variables continue to  retain old values that are no longer appropriate.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="314" href="#314" class="lnkocn">314</a></label>
  <p class="i0" id="o314">
    A second, related problem is that if you run <tt>lb config</tt> and then upgrade  to a new version of <i>live-build</i> that has changed one of the variable names,  you will discover this only by manual review of the variables in your  <tt>config/*</tt> files, which you will then need to use to set the appropriate  option again.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="315" href="#315" class="lnkocn">315</a></label>
  <p class="i0" id="o315">
    All of this would be a terrible nuisance if it weren't for auto/* scripts,  simple wrappers to the <tt>lb config</tt>, <tt>lb build</tt> and <tt>lb clean</tt> commands  that are designed to help you manage your configuration. Simply create an  auto/config script containing <tt>lb config</tt> command with all desired  options, and an auto/clean that removes the files containing configuration  variable values, and each time you <tt>lb config</tt> and <tt>lb clean</tt>, these  files will be executed. This will ensure that your configuration is kept  internally consistent from one revision to the next and from one <i>live-build</i>  release to the next (though you will still have to take care and read the  documentation when you upgrade <i>live-build</i> and make adjustments as needed).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="316" href="#316" class="lnkocn">316</a></label>
  <h5 class="norm" id="o316"><a name="316"></a>
    <a name="6.2" ></a><a name="h6.2" ></a><a name="h6.2">6.2 Example auto scripts</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="317" href="#317" class="lnkocn">317</a></label>
  <p class="i0" id="o317">
    Use auto script examples such as the following as the starting point for  your new <i>live-build</i> configuration. Take note that when you call the <tt>lb</tt>  command that the auto script wraps, you must specify <tt>noauto</tt> as its  parameter to ensure that the auto script isn't called again,  recursively. Also, don't forget to ensure the scripts are executable  (e.g. <tt>chmod 755 auto/*</tt>).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="318" href="#318" class="lnkocn">318</a></label>
  <p class="i0" id="o318">
    <tt>auto/config</tt>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="319" href="#319" class="lnkocn">319</a></label>
  <p class="code" id="o319">
    #!/bin/sh<br />
lb config noauto \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--package-lists "standard" \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"${@}"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="320" href="#320" class="lnkocn">320</a></label>
  <p class="i0" id="o320">
    <tt>auto/clean</tt>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="321" href="#321" class="lnkocn">321</a></label>
  <p class="code" id="o321">
    #!/bin/sh<br />
lb clean noauto "${@}"<br />
rm -f config/binary config/bootstrap \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;config/chroot config/common config/source<br />
rm -f binary.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="322" href="#322" class="lnkocn">322</a></label>
  <p class="i0" id="o322">
    <tt>auto/build</tt>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="323" href="#323" class="lnkocn">323</a></label>
  <p class="code" id="o323">
    #!/bin/sh<br />
lb build noauto "${@}" 2>&1 | tee binary.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="324" href="#324" class="lnkocn">324</a></label>
  <p class="i0" id="o324">
    We now ship example auto scripts with <i>live-build</i> based on the examples  above. You may copy those as your starting point.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="325" href="#325" class="lnkocn">325</a></label>
  <p class="code" id="o325">
    $ cp /usr/share/live/build/examples/auto/* auto/<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="326" href="#326" class="lnkocn">326</a></label>
  <p class="i0" id="o326">
    Edit <tt>auto/config</tt>, changing or adding any options as you see fit. In the  example above, <tt>--package-lists standard</tt> is set to the default  value. Change this to an appropriate value for your image (or delete it if  you want to use the default) and add any additional options in continuation  lines that follow.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="327" href="#327" class="lnkocn">327</a></label>
  <h4 class="norm" id="o327"><a name="327"></a>
    <a name="h7" ></a><a name="customization_overview" ></a><a name="customization-overview" ></a><a name="hcustomization-overview">7. Customization overview</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="328" href="#328" class="lnkocn">328</a></label>
  <p class="i0" id="o328">
    This chapter gives an overview of the various ways in which you may  customize a Debian Live system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="329" href="#329" class="lnkocn">329</a></label>
  <h5 class="norm" id="o329"><a name="329"></a>
    <a name="7.1" ></a><a name="h7.1" ></a><a name="h7.1">7.1 Build time vs. boot time configuration</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="330" href="#330" class="lnkocn">330</a></label>
  <p class="i0" id="o330">
    Live system configuration options are divided into build-time options which  are options that are applied at build time and boot-time options which are  applied at boot time. Boot-time options are further divided into those  occurring early in the boot, applied by the <i>live-boot</i> package, and those  that happen later in the boot, applied by <i>live-config</i>. Any boot-time option  may be modified by the user by specifying it at the boot prompt. The image  may also be built with default boot parameters so users can normally just  boot directly to the live system without specifying any options when all of  the defaults are suitable. In particular, the argument to <tt>lb  --bootappend-live</tt> consists of any default kernel command line options for  the Live system, such as persistence, keyboard layouts, or timezone. See   <a href="#customizing-locale-and-language">Customizing locale and language</a>,  for  example.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="331" href="#331" class="lnkocn">331</a></label>
  <p class="i0" id="o331">
    Build-time configuration options are described in the <tt>lb config</tt> man  page. Boot-time options are described in the man pages for <i>live-boot</i> and  <i>live-config</i>. Although the <i>live-boot</i> and <i>live-config</i> packages are installed  within the live system you are building, it is recommended that you also  install them on your build system for easy reference when you are working on  your configuration. It is safe to do so, as none of the scripts contained  within them are executed unless the system is configured as a live system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="332" href="#332" class="lnkocn">332</a></label>
  <h5 class="norm" id="o332"><a name="332"></a>
    <a name="h7.2" ></a><a name="stages-of-the-build" ></a><a name="hstages-of-the-build">7.2 Stages of the build</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="333" href="#333" class="lnkocn">333</a></label>
  <p class="i0" id="o333">
    The build process is divided into stages, with various customizations  applied in sequence in each. The first stage to run is the <b>bootstrap</b>  stage. This is the initial phase of populating the chroot directory with  packages to make a barebones Debian system. This is followed by the  <b>chroot</b> stage, which completes the construction of chroot directory,  populating it with all of the packages listed in the configuration, along  with any other materials. Most customization of content occurs in this  stage. The final stage of preparing the live image is the <b>binary</b> stage,  which builds a bootable image, using the contents of the chroot directory to  construct the root filesystem for the Live system, and including the  installer and any other additional material on the target media outside of  the Live system's filesystem. After the live image is built, if enabled, the  source tarball is built in the <b>source</b> stage.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="334" href="#334" class="lnkocn">334</a></label>
  <p class="i0" id="o334">
    Within each of these stages, there is a particular sequence in which  commands are applied. These are arranged in such a way as to ensure  customizations can be layered in a reasonable fashion. For example, within  the <b>chroot</b> stage, preseeds are applied before any packages are  installed, packages are installed before any locally included files or  patches are applied, and hooks are run later, after all of the materials are  in place.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="335" href="#335" class="lnkocn">335</a></label>
  <h5 class="norm" id="o335"><a name="335"></a>
    <a name="7.3" ></a><a name="h7.3" ></a><a name="h7.3">7.3 Supplement lb config with files</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="336" href="#336" class="lnkocn">336</a></label>
  <p class="i0" id="o336">
    Although <tt>lb config</tt> does create a skeletal configuration in the config/  directory, to accomplish your goals, you may need to provide additional  files in subdirectories of config/. Depending on where the files are stored  in the configuration, they may be copied into the live system's filesystem  or into the binary image filesystem, or may provide build-time  configurations of the system that would be cumbersome to pass as  command-line options. You may include things such as custom lists of  packages, custom artwork, or hook scripts to run either at build time or at  boot time, boosting the already considerable flexibility of debian-live with  code of your own.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="337" href="#337" class="lnkocn">337</a></label>
  <h5 class="norm" id="o337"><a name="337"></a>
    <a name="7.4" ></a><a name="h7.4" ></a><a name="h7.4">7.4 Customization tasks</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="338" href="#338" class="lnkocn">338</a></label>
  <p class="i0" id="o338">
    The following chapters are organized by the kinds of customization task  users typically perform:  <a href="#customizing-package-installation">Customizing package  installation</a>,   <a href="#customizing-contents">Customizing  contents</a>  and  <a href="#customizing-locale-and-language">Customizing locale and  language</a>  cover just a few of the things you  might want to do.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="339" href="#339" class="lnkocn">339</a></label>
  <h4 class="norm" id="o339"><a name="339"></a>
    <a name="h8" ></a><a name="customizing_package_installation" ></a><a name="customizing-package-installation" ></a><a name="hcustomizing-package-installation">8. Customizing package installation</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="340" href="#340" class="lnkocn">340</a></label>
  <p class="i0" id="o340">
    Perhaps the most basic customization of a Debian live system is the  selection of packages to be included in the image. This chapter guides you  through the various build-time options to customize <i>live-build</i>' s  installation of packages. The broadest choices influencing which packages  are available to install in the image are the distribution and archive  areas. To ensure decent download speeds, you should choose a nearby  distribution mirror. You can also add your own repositories for backports,  experimental or custom packages, or include packages directly as files. You  can define your own lists of packages to include, use <i>live-build</i>' s  predefined lists, use <tt>tasksel</tt> tasks, or a combination of all  three. Finally, a number of options give some control over apt, or if you  prefer, aptitude, at build time when packages are installed. You may find  these handy if you use a proxy, want to disable installation of recommended  packages to save space, or need to control which versions of packages are  installed via APT pinning, to name a few possibilities.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="341" href="#341" class="lnkocn">341</a></label>
  <h5 class="norm" id="o341"><a name="341"></a>
    <a name="8.1" ></a><a name="h8.1" ></a><a name="h8.1">8.1 Package sources</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="342" href="#342" class="lnkocn">342</a></label>
  <h6 class="norm" id="o342"><a name="342"></a>
    <a name="8.1.1" ></a><a name="h8.1.1" ></a><a name="h8.1.1">8.1.1 Distribution, archive areas and mode</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="343" href="#343" class="lnkocn">343</a></label>
  <p class="i0" id="o343">
    The distribution you choose has the broadest impact on which packages are  available to include in your live image. Specify the codename, which  defaults to <tt>wheezy</tt> for the <b>Wheezy</b> version of <i>live-build</i>. Any current  distribution carried in the Debian archive may be specified by its codename  here. (See  <a href="#terms">Terms</a>  for more details.) The <tt>--distribution</tt> option  not only influences the source of packages within the archive, but also  instructs <tt>live-build</tt> to behave as needed to build each supported  distribution. For example, to build against the *unstable* release, <b>Sid</b>,  specify:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="344" href="#344" class="lnkocn">344</a></label>
  <p class="code" id="o344">
    $ lb config --distribution sid<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="345" href="#345" class="lnkocn">345</a></label>
  <p class="i0" id="o345">
    Within the distribution archive, archive areas are major divisions of the  archive. In Debian, these are <tt>main</tt>, <tt>contrib</tt> and <tt>non-free</tt>. Only  <tt>main</tt> contains software that is part of the Debian distribution, hence  that is the default. One or more values may be specified, e.g.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="346" href="#346" class="lnkocn">346</a></label>
  <p class="code" id="o346">
    $ lb config --archive-areas "main contrib"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="347" href="#347" class="lnkocn">347</a></label>
  <p class="i0" id="o347">
    Experimental support is available for some Debian derivatives through a  <tt>--mode</tt> option. By default, this option is set to <tt>debian</tt>, even if you  are building on a non-Debian system. If you specify <tt>--mode ubuntu</tt> or  <tt>--mode emdebian</tt>, the distribution names and archive areas for the  specified derivative are supported instead of the ones for Debian. The mode  also modifies <i>live-build</i> behaviour to suit the derivatives.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="348" href="#348" class="lnkocn">348</a></label>
  <p class="i0" id="o348">
    <b>Note:</b> The projects for whom these modes were added are primarily responsible for supporting users of these options. The Debian live project, in turn, provides development support on a best-effort basis only, based on feedback from the derivative projects as we do not develop or support these derivatives ourselves.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="349" href="#349" class="lnkocn">349</a></label>
  <h6 class="norm" id="o349"><a name="349"></a>
    <a name="8.1.2" ></a><a name="h8.1.2" ></a><a name="h8.1.2">8.1.2 Distribution mirrors</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="350" href="#350" class="lnkocn">350</a></label>
  <p class="i0" id="o350">
    The Debian archive is replicated across a large network of mirrors around  the world so that people in each region can choose a nearby mirror for best  download speed. Each of the <tt>--parent-mirror-*</tt> options governs which  distribution mirror is used at various stages of the build. Recall from   <a href="#stages-of-the-build">Stages of the build</a>  that the *bootstrap* stage is when  the chroot is initially populated by debootstrap with a minimal system, and  the *chroot* stage is when the chroot used to construct the live system's  filesystem is built. Thus, the corresponding mirror switches are used for  those stages, and later, in the *binary* stage, the  <tt>--parent-mirror-binary</tt> and <tt>--parent-mirror-binary-security</tt> values  are used, superceding any mirrors used in an earlier stage.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="351" href="#351" class="lnkocn">351</a></label>
  <h6 class="norm" id="o351"><a name="351"></a>
    <a name="h8.1.3" ></a><a name="distribution-mirrors-build-time" ></a><a name="hdistribution-mirrors-build-time">8.1.3 Distribution mirrors used at build time</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="352" href="#352" class="lnkocn">352</a></label>
  <p class="i0" id="o352">
    To set the distribution mirrors used at build time to point at a local  mirror, it is sufficient to set <tt>--parent-mirror-bootstrap</tt>,  <tt>--parent-mirror-chroot-security</tt> and <tt>--parent-mirror-chroot-backports</tt>  as follows.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="353" href="#353" class="lnkocn">353</a></label>
  <p class="code" id="o353">
    $ lb config --parent-mirror-bootstrap http://localhost/debian/ \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--parent-mirror-chroot-security http://localhost/debian-security/ \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--parent-mirror-chroot-backports http://localhost/debian-backports/<br /> <br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="354" href="#354" class="lnkocn">354</a></label>
  <p class="i0" id="o354">
    The chroot mirror, specified by <tt>--parent-mirror-chroot</tt>, defaults to the  <tt>--parent-mirror-bootstrap</tt> value.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="355" href="#355" class="lnkocn">355</a></label>
  <h6 class="norm" id="o355"><a name="355"></a>
    <a name="8.1.4" ></a><a name="h8.1.4" ></a><a name="h8.1.4">8.1.4 Distribution mirrors used at run time</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="356" href="#356" class="lnkocn">356</a></label>
  <p class="i0" id="o356">
    The <tt>--parent-mirror-binary*</tt> options govern the distribution mirrors  placed in the binary image. These may be used to install additional packages  while running the live system. The defaults employ <tt>cdn.debian.net</tt>, a  service that chooses a geographically close mirror based on the user's IP  number. This is a suitable choice when you cannot predict which mirror will  be best for all of your users. Or you may specify your own values as shown  in the example below. An image built from this configuration would only be  suitable for users on a network where "<tt>mirror</tt>" is reachable.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="357" href="#357" class="lnkocn">357</a></label>
  <p class="code" id="o357">
    $ lb config --parent-mirror-binary http://mirror/debian/ \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--parent-mirror-binary-security http://mirror/debian-security/<br /> <br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="358" href="#358" class="lnkocn">358</a></label>
  <h6 class="norm" id="o358"><a name="358"></a>
    <a name="h8.1.5" ></a><a name="additional-repositories" ></a><a name="hadditional-repositories">8.1.5 Additional repositories</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="359" href="#359" class="lnkocn">359</a></label>
  <p class="i0" id="o359">
    You may add more repositories, broadening your package choices beyond what  is available in your target distribution. These may be, for example, for  backports, experimental or custom packages. To configure additional  repositories, create <tt>config/archives/your-repository.list.chroot</tt>, and/or  <tt>config/archives/your-repository.list.binary</tt> files. As with the  <tt>--parent-mirror-*</tt> options, these govern the repositories used in the  *chroot* stage when building the image, and in the *binary* stage, i.e. for  use when running the live system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="360" href="#360" class="lnkocn">360</a></label>
  <p class="i0" id="o360">
    For example, <tt>config/archives/live.list.chroot</tt> allows you to install  packages from the debian live snapshot repository at live system build time.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="361" href="#361" class="lnkocn">361</a></label>
  <p class="code" id="o361">
    deb http://live.debian.net/ sid-snapshots main contrib non-free<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="362" href="#362" class="lnkocn">362</a></label>
  <p class="i0" id="o362">
    If you add the same line to <tt>config/archives/live.list.binary</tt>, the  repository will be added to your live system's <tt>/etc/apt/sources.list.d/</tt>  directory.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="363" href="#363" class="lnkocn">363</a></label>
  <p class="i0" id="o363">
    If such files exist, they will be picked up automatically.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="364" href="#364" class="lnkocn">364</a></label>
  <p class="i0" id="o364">
    You should also put the GPG key used to sign the repository into  <tt>config/archives/your-repository.gpg.{binary,chroot}</tt> files.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="365" href="#365" class="lnkocn">365</a></label>
  <p class="i0" id="o365">
    <b>Note:</b> some preconfigured package repositories are available for easy selection through the <tt>--archives</tt> option, e.g. for enabling live snapshots, a simple command is enough to enable it:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="366" href="#366" class="lnkocn">366</a></label>
  <p class="code" id="o366">
    $ lb config --archives live.debian.net<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="367" href="#367" class="lnkocn">367</a></label>
  <h5 class="norm" id="o367"><a name="367"></a>
    <a name="h8.2" ></a><a name="choosing-packages-to-install" ></a><a name="hchoosing-packages-to-install">8.2 Choosing packages to install</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="368" href="#368" class="lnkocn">368</a></label>
  <p class="i0" id="o368">
    There are a number of ways to choose which packages <i>live-build</i> will install  in your image, covering a variety of different needs. You can simply name  individual packages to install in a package list. You can also choose  predefined lists of packages, or use APT tasks. And finally, you may place  package files in your <tt>config/</tt> tree, which is well suited to testing of  new or experimental packages before they are available from a repository.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="369" href="#369" class="lnkocn">369</a></label>
  <h6 class="norm" id="o369"><a name="369"></a>
    <a name="h8.2.1" ></a><a name="package-lists" ></a><a name="hpackage-lists">8.2.1 Package lists</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="370" href="#370" class="lnkocn">370</a></label>
  <p class="i0" id="o370">
    Package lists are a powerful way of expressing which packages should be  installed. The list syntax supports included files and conditional sections  which makes it easy to build lists from other lists and adapt them for use  in multiple configurations. You can use predefined package lists, providing  in a modular fashion package selections from each of the major desktop  environments and some special purpose lists, as well as standard lists the  others are based upon. You can also provide your own package lists, or use a  combination of both.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="371" href="#371" class="lnkocn">371</a></label>
  <p class="i0" id="o371">
    <b>Note:</b>  The behaviour of <i>live-build</i> when specifying a package that does not exist is determined by your choice of APT utility. See  <a href="#choosing-apt-or-aptitude">Choosing apt or aptitude</a>  for more details.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="372" href="#372" class="lnkocn">372</a></label>
  <h6 class="norm" id="o372"><a name="372"></a>
    <a name="8.2.2" ></a><a name="h8.2.2" ></a><a name="h8.2.2">8.2.2 Predefined package lists</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="373" href="#373" class="lnkocn">373</a></label>
  <p class="i0" id="o373">
    The simplest way to use lists is to specify one or more predefined lists  with the <tt>--package-lists</tt> option. For example:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="374" href="#374" class="lnkocn">374</a></label>
  <p class="code" id="o374">
    $ lb config --package-lists "gnome rescue"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="375" href="#375" class="lnkocn">375</a></label>
  <p class="i0" id="o375">
    The default location for the list files on your system is  <tt>/usr/share/live/build/package-lists/</tt>. To determine the packages in a  given list, read the corresponding file, paying attention to included files  and conditionals as described in the following sections.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="376" href="#376" class="lnkocn">376</a></label>
  <h6 class="norm" id="o376"><a name="376"></a>
    <a name="8.2.3" ></a><a name="h8.2.3" ></a><a name="h8.2.3">8.2.3 Local package lists</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="377" href="#377" class="lnkocn">377</a></label>
  <p class="i0" id="o377">
    You may supplement the predefined lists using local package lists stored in  <tt>config/package-lists/</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="378" href="#378" class="lnkocn">378</a></label>
  <p class="i0" id="o378">
    Package lists that exist in this directory need to have a <tt>.list</tt> suffix  in order to be processed, and then an additional stage suffix, <tt>.chroot</tt>  or <tt>.binary</tt> to indicate which stage the list is for.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="379" href="#379" class="lnkocn">379</a></label>
  <p class="i0" id="o379">
    <b>Note:</b> If you don't specify the stage suffix, the list will be used for both stages. Normally, you want to specify <tt>.list.chroot</tt> so that the packages will only be installed in the live filesystem and not have an extra copy of the <tt>.deb</tt> placed on the media.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="380" href="#380" class="lnkocn">380</a></label>
  <h6 class="norm" id="o380"><a name="380"></a>
    <a name="8.2.4" ></a><a name="h8.2.4" ></a><a name="h8.2.4">8.2.4 Local binary package lists</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="381" href="#381" class="lnkocn">381</a></label>
  <p class="i0" id="o381">
    To make a binary stage list, place a file suffixed with <tt>.list.binary</tt> in  <tt>config/package-lists/</tt>. These packages are not installed in the live  filesystem, but are included on the live media under <tt>pool/</tt>. You would  typically use such a list with one of the non-live installer variants. As  mentioned above, if you want this list to be the same as your chroot stage  list, simply use the <tt>.list</tt> suffix by itself.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="382" href="#382" class="lnkocn">382</a></label>
  <h6 class="norm" id="o382"><a name="382"></a>
    <a name="8.2.5" ></a><a name="h8.2.5" ></a><a name="h8.2.5">8.2.5 Extending a provided package list using includes</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="383" href="#383" class="lnkocn">383</a></label>
  <p class="i0" id="o383">
    The package lists that are included with <i>live-build</i> make extensive use of  includes. Refer to these in the <tt>/usr/share/live/build/package-lists/</tt>  directory, as they serve as good examples of how to write your own lists.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="384" href="#384" class="lnkocn">384</a></label>
  <p class="i0" id="o384">
    For example, to make a list that includes the predefined <tt>gnome</tt> list plus  iceweasel, create <tt>config/package-lists/my.list.chroot</tt> with the following  contents:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="385" href="#385" class="lnkocn">385</a></label>
  <p class="code" id="o385">
    #include &lt;gnome&gt;<br />
iceweasel<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="386" href="#386" class="lnkocn">386</a></label>
  <h6 class="norm" id="o386"><a name="386"></a>
    <a name="8.2.6" ></a><a name="h8.2.6" ></a><a name="h8.2.6">8.2.6 Using conditionals inside package lists</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="387" href="#387" class="lnkocn">387</a></label>
  <p class="i0" id="o387">
    Any of the <i>live-build</i> configuration variables stored in <tt>config/*</tt> (minus  the <tt>LB_</tt> prefix) may be used in conditional statements in package  lists. Generally, this means any <tt>lb config</tt> option uppercased and with  dashes changed to underscores. But in practice, it is only the ones that  influence package selection that make sense, such as <tt>DISTRIBUTION</tt>,  <tt>ARCHITECTURE</tt> or <tt>ARCHIVE_AREAS</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="388" href="#388" class="lnkocn">388</a></label>
  <p class="i0" id="o388">
    For example, to install <tt>ia32-libs</tt> if the <tt>--architecture amd64</tt> is  specified:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="389" href="#389" class="lnkocn">389</a></label>
  <p class="code" id="o389">
    #if ARCHITECTURE amd64<br />
ia32-libs<br />
#endif<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="390" href="#390" class="lnkocn">390</a></label>
  <p class="i0" id="o390">
    You may test for any one of a number of values, e.g. to install  <tt>memtest86+</tt> if either <tt>--architecture i386</tt> or <tt>--architecture amd64</tt>  is specified:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="391" href="#391" class="lnkocn">391</a></label>
  <p class="code" id="o391">
    #if ARCHITECTURE i386 amd64<br />
memtest86+<br />
#endif<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="392" href="#392" class="lnkocn">392</a></label>
  <p class="i0" id="o392">
    You may also test against variables that may contain more than one value,  e.g. to install <tt>vrms</tt> if either <tt>contrib</tt> or <tt>non-free</tt> is specified  via <tt>--archive-areas</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="393" href="#393" class="lnkocn">393</a></label>
  <p class="code" id="o393">
    #if ARCHIVE_AREAS contrib non-free<br />
vrms<br />
#endif<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="394" href="#394" class="lnkocn">394</a></label>
  <p class="i0" id="o394">
    A conditional may surround an <tt>#include</tt> directive:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="395" href="#395" class="lnkocn">395</a></label>
  <p class="code" id="o395">
    #if ARCHITECTURE amd64<br />
#include <gnome-full><br />
#endif<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="396" href="#396" class="lnkocn">396</a></label>
  <p class="i0" id="o396">
    The nesting of conditionals is not supported.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="397" href="#397" class="lnkocn">397</a></label>
  <h6 class="norm" id="o397"><a name="397"></a>
    <a name="8.2.7" ></a><a name="h8.2.7" ></a><a name="h8.2.7">8.2.7 Tasks</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="398" href="#398" class="lnkocn">398</a></label>
  <p class="i0" id="o398">
    The Debian Installer offers the user choices of a number of preselected  lists of packages, each one focused on a particular kind of system, or task  a system may be used for, such as "Graphical desktop environment", "Mail  server" or "Laptop". These lists are called "tasks" and are supported by APT  through the "Task:" field. You can specify one or more tasks in <i>live-build</i>  by putting them in a list in <tt>config/task-lists/</tt>, as in the example  below.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="399" href="#399" class="lnkocn">399</a></label>
  <p class="code" id="o399">
    $ lb config<br />
$ echo "mail-server file-server" >> config/task-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="400" href="#400" class="lnkocn">400</a></label>
  <p class="i0" id="o400">
    The primary tasks available in the Debian Installer can be listed with  <tt>tasksel --list-tasks</tt> in the live system. The contents of any task,  including ones not included in this list, may be examined with <tt>tasksel  --task-packages</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="401" href="#401" class="lnkocn">401</a></label>
  <h6 class="norm" id="o401"><a name="401"></a>
    <a name="h8.2.8" ></a><a name="desktop-and-language-tasks" ></a><a name="hdesktop-and-language-tasks">8.2.8 Desktop and language tasks</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="402" href="#402" class="lnkocn">402</a></label>
  <p class="i0" id="o402">
    Desktop and language tasks are special cases that need some extra planning  and configuration. Live images are different from Debian Installer images in  this respect. In the Debian Installer, if the medium was prepared for a  particular desktop environment flavour, the corresponding task will be  automatically installed. Thus, there are internal <tt>gnome-desktop</tt>,  <tt>kde-desktop</tt>, <tt>lxde-desktop</tt> and <tt>xfce-desktop</tt> tasks, none of which  are offered in <tt>tasksel</tt>'s menu. Likewise, there are no menu entries for  tasks for languages, but the user's language choice during the install  influences the selection of corresponding language tasks.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="403" href="#403" class="lnkocn">403</a></label>
  <p class="i0" id="o403">
    When developing a desktop live image, the image typically boots directly to  a working desktop, the choices of both desktop and default language having  been made at build time, not at run time as in the case of the Debian  Installer. That's not to say that a live image couldn't be built to support  multiple desktops or multiple languages and offer the user a choice, but  that is not <i>live-build</i>' s default behaviour.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="404" href="#404" class="lnkocn">404</a></label>
  <p class="i0" id="o404">
    Because there is no provision made automatically for language tasks, which  include such things as language-specific fonts and input-method packages, if  you want them, you need to specify them in your configuration. For example,  a GNOME desktop image containing support for Japanese might include these  tasks:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="405" href="#405" class="lnkocn">405</a></label>
  <p class="code" id="o405">
    $ lb config<br />
$ echo "gnome-desktop desktop standard laptop" >> config/task-lists/my.list.chroot<br />
$ echo "japanese japanese-desktop japanese-gnome-desktop" >> config/task-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="406" href="#406" class="lnkocn">406</a></label>
  <p class="i0" id="o406">
    Since desktop tasks are "internal" tasks, for every desktop flavour task  included in the image, the corresponding value, if it differs from the  default, "gnome", must be preseeded in the "tasksel/desktop" debconf  variable or else tasksel will not recognize and install it. Thus:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="407" href="#407" class="lnkocn">407</a></label>
  <p class="code" id="o407">
    $ lb config<br />
$ echo 'tasksel tasksel/desktop multiselect kde' >> config/preseed/my.preseed.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="408" href="#408" class="lnkocn">408</a></label>
  <p class="i0" id="o408">
    This parameter can take multiple values, e.g. "lxde xfce" instead of "kde".
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="409" href="#409" class="lnkocn">409</a></label>
  <h5 class="norm" id="o409"><a name="409"></a>
    <a name="h8.3" ></a><a name="installing-modified-or-third-party-packages" ></a><a name="hinstalling-modified-or-third-party-packages">8.3 Installing modified or  third-party packages</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="410" href="#410" class="lnkocn">410</a></label>
  <p class="i0" id="o410">
    Whilst it is against the philosophy of Debian Live, it may sometimes be  necessary to build a Live system with modified versions of packages that are  in the Debian repository. This may be to modify or support additional  features, languages and branding, or even to remove elements of existing  packages that are undesirable. Similarly, "third-party" packages may be used  to add bespoke and/or proprietary functionality.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="411" href="#411" class="lnkocn">411</a></label>
  <p class="i0" id="o411">
    This section does not cover advice regarding building or maintaining  modified packages. Joachim Breitner's 'How to fork privately' method from  ‹<a href="http://www.joachim-breitner.de/blog/archives/282-How-to-fork-privately.html" target="_top">http://www.joachim-breitner.de/blog/archives/282-How-to-fork-privately.html</a>›  may be of interest, however. The creation of bespoke packages is covered in  the Debian New Maintainers' Guide at ‹<a href="http://www.debian.org/doc/maint-guide/" target="_top">http://www.debian.org/doc/maint-guide/</a>›  and elsewhere.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="412" href="#412" class="lnkocn">412</a></label>
  <p class="i0" id="o412">
    There are two ways of installing modified custom packages:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="413" href="#413" class="lnkocn">413</a></label>
  <li class="bullet" id="o413">
    <tt>packages.chroot</tt>
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="414" href="#414" class="lnkocn">414</a></label>
  <li class="bullet" id="o414">
    Using a custom APT repository
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="415" href="#415" class="lnkocn">415</a></label>
  <p class="i0" id="o415">
    Using <tt>packages.chroot</tt> is simpler to achieve and useful for "one-off"  customizations but has a number of drawbacks, whilst using a custom APT  repository is more time-consuming to set up.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="416" href="#416" class="lnkocn">416</a></label>
  <h6 class="norm" id="o416"><a name="416"></a>
    <a name="8.3.1" ></a><a name="h8.3.1" ></a><a name="h8.3.1">8.3.1 Using <tt>packages.chroot</tt> to install custom packages</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="417" href="#417" class="lnkocn">417</a></label>
  <p class="i0" id="o417">
    To install a custom package, simply copy it to the  <tt>config/packages.chroot/</tt> directory. Packages that are inside this  directory will be automatically installed into the live system during build  - you do not need to specify them elsewhere.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="418" href="#418" class="lnkocn">418</a></label>
  <p class="i0" id="o418">
    Packages <b>must</b> be named in the prescribed way. One simple way to do this  is to use <tt>dpkg-name</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="419" href="#419" class="lnkocn">419</a></label>
  <p class="i0" id="o419">
    Using <tt>packages.chroot</tt> for installation of custom packages has  disadvantages:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="420" href="#420" class="lnkocn">420</a></label>
  <li class="bullet" id="o420">
    It is not possible to use secure APT.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="421" href="#421" class="lnkocn">421</a></label>
  <li class="bullet" id="o421">
    You must install all appropriate packages in the  <tt>config/packages.chroot/</tt> directory.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="422" href="#422" class="lnkocn">422</a></label>
  <li class="bullet" id="o422">
    It does not lend itself to storing Debian Live configurations in revision  control.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="423" href="#423" class="lnkocn">423</a></label>
  <h6 class="norm" id="o423"><a name="423"></a>
    <a name="8.3.2" ></a><a name="h8.3.2" ></a><a name="h8.3.2">8.3.2 Using an APT repository to install custom packages</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="424" href="#424" class="lnkocn">424</a></label>
  <p class="i0" id="o424">
    Unlike using <tt>packages.chroot</tt>, when using a custom APT repository you  must ensure that you specify the packages elsewhere. See  <a href="#choosing-packages-to-install">Choosing packages  to install</a>  for details.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="425" href="#425" class="lnkocn">425</a></label>
  <p class="i0" id="o425">
    Whilst it may seem unnecessary effort to create an APT repository to install  custom packages, the infrastructure can be easily re-used at a later date to  offer updates of the modified packages.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="426" href="#426" class="lnkocn">426</a></label>
  <h6 class="norm" id="o426"><a name="426"></a>
    <a name="8.3.3" ></a><a name="h8.3.3" ></a><a name="h8.3.3">8.3.3 Custom packages and APT</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="427" href="#427" class="lnkocn">427</a></label>
  <p class="i0" id="o427">
    <i>live-build</i> uses APT to install all packages into the live system so will  therefore inherit behaviours from this program. One relevant example is that  (assuming a default configuration) given a package available in two  different repositories with different version numbers, APT will elect to  install the package with the higher version number.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="428" href="#428" class="lnkocn">428</a></label>
  <p class="i0" id="o428">
    Because of this, you may wish to increment the version number in your custom  packages' <tt>debian/changelog</tt> files to ensure that your modified version is  installed over one in the official Debian repositories. This may also be  achieved by altering the live system's APT pinning preferences - see  <a href="#apt-pinning">APT  pinning</a>  for more information.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="429" href="#429" class="lnkocn">429</a></label>
  <h5 class="norm" id="o429"><a name="429"></a>
    <a name="8.4" ></a><a name="h8.4" ></a><a name="h8.4">8.4 Configuring APT at build time</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="430" href="#430" class="lnkocn">430</a></label>
  <p class="i0" id="o430">
    You can configure APT through a number of options applied only at build  time. (APT configuration used in the running live system may be configured  in the normal way for live system contents, that is, by including the  appropriate configurations through <tt>config/includes.chroot/</tt>.) For a  complete list, look for options starting with <tt>apt</tt> in the <tt>lb_config</tt>  man page.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="431" href="#431" class="lnkocn">431</a></label>
  <h6 class="norm" id="o431"><a name="431"></a>
    <a name="h8.4.1" ></a><a name="choosing-apt-or-aptitude" ></a><a name="hchoosing-apt-or-aptitude">8.4.1 Choosing apt or aptitude</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="432" href="#432" class="lnkocn">432</a></label>
  <p class="i0" id="o432">
    You can elect to use either <tt>apt</tt> or <tt>aptitude</tt> when installing packages  at build time. Which utility is used is governed by the <tt>--apt</tt> argument  to <tt>lb config</tt>. Choose the method implementing the preferred behaviour for  package installation, the notable difference being how missing packages are  handled.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="433" href="#433" class="lnkocn">433</a></label>
  <li class="bullet" id="o433">
    <tt>apt</tt>: With this method, if a missing package is specified, the package  installation will fail. This is the default setting.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="434" href="#434" class="lnkocn">434</a></label>
  <li class="bullet" id="o434">
    <tt>aptitude</tt>: With this method, if a missing package is specified, the  package installation will succeed.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="435" href="#435" class="lnkocn">435</a></label>
  <h6 class="norm" id="o435"><a name="435"></a>
    <a name="8.4.2" ></a><a name="h8.4.2" ></a><a name="h8.4.2">8.4.2 Using a proxy with APT</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="436" href="#436" class="lnkocn">436</a></label>
  <p class="i0" id="o436">
    One commonly required APT configuration is to deal with building an image  behind a proxy. You may specify your APT proxy with the <tt>--apt-ftp-proxy</tt>  or <tt>--apt-http-proxy</tt> options as needed, e.g.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="437" href="#437" class="lnkocn">437</a></label>
  <p class="code" id="o437">
    $ lb config --apt-http-proxy http://proxy/<br /> <br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="438" href="#438" class="lnkocn">438</a></label>
  <h6 class="norm" id="o438"><a name="438"></a>
    <a name="8.4.3" ></a><a name="h8.4.3" ></a><a name="h8.4.3">8.4.3 Tweaking APT to save space</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="439" href="#439" class="lnkocn">439</a></label>
  <p class="i0" id="o439">
    You may find yourself needing to save some space on the image media, in  which case one or the other or both of the following options may be of  interest.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="440" href="#440" class="lnkocn">440</a></label>
  <p class="i0" id="o440">
    If you don't want to include APT indices in the image, you can omit those  with:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="441" href="#441" class="lnkocn">441</a></label>
  <p class="code" id="o441">
    $ lb config --apt-indices false<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="442" href="#442" class="lnkocn">442</a></label>
  <p class="i0" id="o442">
    This will not influence the entries in /etc/apt/sources.list, but merely  whether /var/lib/apt contains the indices files or not. The tradeoff is that  APT needs those indices in order to operate in the live system, so before  performing <tt>apt-cache search</tt> or <tt>apt-get install</tt>, for instance, the  user must <tt>apt-get update</tt> first to create those indices.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="443" href="#443" class="lnkocn">443</a></label>
  <p class="i0" id="o443">
    If you find the installation of recommended packages bloats your image too  much, you may disable that default option of APT with:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="444" href="#444" class="lnkocn">444</a></label>
  <p class="code" id="o444">
    $ lb config --apt-recommends false<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="445" href="#445" class="lnkocn">445</a></label>
  <p class="i0" id="o445">
    The tradeoff here is that if you don't install recommended packages for a  given package, that is, "packages that would be found together with this one  in all but unusual installations" (Debian Policy Manual, section 7.2), some  packages that you actually need may be omitted. Therefore, we suggest you  review the difference turning off recommends makes to your packages list  (see the <tt>binary.packages</tt> file generated by <tt>lb build</tt>) and re-include  in your list any missing packages that you still want  installed. Alternatively, if you find you only want a small number of  recommended packages left out, leave recommends enabled and set a negative  APT pin priority on selected packages to prevent them from being installed,  as explained in  <a href="#apt-pinning">APT pinning</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="446" href="#446" class="lnkocn">446</a></label>
  <h6 class="norm" id="o446"><a name="446"></a>
    <a name="8.4.4" ></a><a name="h8.4.4" ></a><a name="h8.4.4">8.4.4 Passing options to apt or aptitude</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="447" href="#447" class="lnkocn">447</a></label>
  <p class="i0" id="o447">
    If there is not an <tt>lb config</tt> option to alter APT's behaviour in the way  you need, use <tt>--apt-options</tt> or <tt>--aptitude-options</tt> to pass any  options through to your configured APT tool. See the man pages for <tt>apt</tt>  and <tt>aptitude</tt> for details.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="448" href="#448" class="lnkocn">448</a></label>
  <h6 class="norm" id="o448"><a name="448"></a>
    <a name="h8.4.5" ></a><a name="apt-pinning" ></a><a name="hapt-pinning">8.4.5 APT pinning</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="449" href="#449" class="lnkocn">449</a></label>
  <p class="i0" id="o449">
    For background, please first read the <tt>apt_preferences(5)</tt> man page. APT  pinning can be configured either for build time, or else for run time. For  the former, create <tt>config/chroot_apt/preferences</tt>. For the latter, create  <tt>config/includes.chroot/etc/apt/preferences</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="450" href="#450" class="lnkocn">450</a></label>
  <p class="i0" id="o450">
    Let's say you are building a <b>Wheezy</b> live system but need all the live  packages that end up in the binary image to be installed from <b>Sid</b> at build  time. You need to add <b>Sid</b> to your APT sources and pin it so that only the  packages you want are installed from it at build time and all others are  taken from the target system distribution, <b>Wheezy</b>. The following will  accomplish this:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="451" href="#451" class="lnkocn">451</a></label>
  <p class="code" id="o451">
    $ echo "deb http://mirror/debian sid main" > config/archives/sid.list.chroot<br />
$ cat >> config/chroot_apt/preferences <<END<br />
Package: live-boot live-boot-initramfs-tools live-config live-config-sysvinit<br />
Pin: release n=sid<br />
Pin-Priority: 600<br /><br />
Package: *<br />
Pin: release n=sid<br />
Pin-Priority: 1<br />
END<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="452" href="#452" class="lnkocn">452</a></label>
  <p class="i0" id="o452">
    <b>Note:</b> Wildcards can be used in package names (e.g. <b>Package: live-*</b>) with Apt version 0.8.14 or higher. This means that it works with <b>Wheezy</b> using:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="453" href="#453" class="lnkocn">453</a></label>
  <p class="code" id="o453">
    $ lb config --distribution wheezy<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="454" href="#454" class="lnkocn">454</a></label>
  <p class="i0" id="o454">
    Negative pin priorities will prevent a package from being installed, as in  the case where you do not want a package that is recommended by another  package. Suppose you are building an LXDE image using <tt>--package-lists  lxde</tt> option, but don't want the user prompted to store wifi passwords in  the keyring. This list includes <tt>gdm</tt>, which depends on <tt>gksu</tt>, which in  turn recommends <tt>gnome-keyring</tt>. So you want to omit the recommended  <tt>gnome-keyring</tt> package. This can be done by adding the following stanza  to <tt>config/chroot_apt/preferences</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="455" href="#455" class="lnkocn">455</a></label>
  <p class="code" id="o455">
    Package: gnome-keyring<br />
Pin: version *<br />
Pin-Priority: -1<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="456" href="#456" class="lnkocn">456</a></label>
  <h4 class="norm" id="o456"><a name="456"></a>
    <a name="h9" ></a><a name="customizing_contents" ></a><a name="customizing-contents" ></a><a name="hcustomizing-contents">9. Customizing contents</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="457" href="#457" class="lnkocn">457</a></label>
  <p class="i0" id="o457">
    This chapter discusses fine-tuning customization of the live system contents  beyond merely choosing which packages to include. Includes allow you to add  or replace arbitrary files in your Debian Live image, hooks allow you to  execute arbitrary commands at different stages of the build and at boot  time, and preseeding allows you to configure packages when they are  installed by supplying answers to debconf questions.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="458" href="#458" class="lnkocn">458</a></label>
  <h5 class="norm" id="o458"><a name="458"></a>
    <a name="9.1" ></a><a name="h9.1" ></a><a name="h9.1">9.1 Includes</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="459" href="#459" class="lnkocn">459</a></label>
  <p class="i0" id="o459">
    While ideally a Debian live system would include files entirely provided by  unmodified Debian packages, it is sometimes convenient to provide or modify  some content by means of files. Using includes, it is possible to add (or  replace) arbitrary files in your Debian Live image. <i>live-build</i> provides  three mechanisms for using them:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="460" href="#460" class="lnkocn">460</a></label>
  <li class="bullet" id="o460">
    Chroot local includes: These allow you to add or replace files to the  chroot/Live filesystem. Please see  <a href="#live-chroot-local-includes">Live/chroot local  includes</a>  for more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="461" href="#461" class="lnkocn">461</a></label>
  <li class="bullet" id="o461">
    Binary local includes: These allow you to add or replace files in the  binary image. Please see  <a href="#binary-local-includes">Binary local includes</a>  for  more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="462" href="#462" class="lnkocn">462</a></label>
  <li class="bullet" id="o462">
    Binary includes: These allow you to add or replace Debian specific files  in the binary image, such as the templates and tools directories. Please see   <a href="#binary-includes">Binary includes</a>  for more information.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="463" href="#463" class="lnkocn">463</a></label>
  <p class="i0" id="o463">
    Please see  <a href="#terms">Terms</a>  for more information about the distinction between  the "Live" and "binary" images.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="464" href="#464" class="lnkocn">464</a></label>
  <h6 class="norm" id="o464"><a name="464"></a>
    <a name="h9.1.1" ></a><a name="live-chroot-local-includes" ></a><a name="hlive-chroot-local-includes">9.1.1 Live/chroot local includes</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="465" href="#465" class="lnkocn">465</a></label>
  <p class="i0" id="o465">
    Chroot local includes can be used to add or replace files in the chroot/Live  filesystem so that they may be used in the Live system. A typical use is to  populate the skeleton user directory (<tt>/etc/skel</tt>) used by the Live system  to create the live user's home directory. Another is to supply configuration  files that can be simply added or replaced in the image without processing;  see  <a href="#live-chroot-local-hooks">Live/chroot local hooks</a>  if processing is  needed.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="466" href="#466" class="lnkocn">466</a></label>
  <p class="i0" id="o466">
    To include files, simply add them to your <tt>config/includes.chroot</tt>  directory. This directory corresponds to the root directory (<tt>/</tt>) of the  live system. For example, to add a file <tt>/var/www/index.html</tt> in the live  system, use:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="467" href="#467" class="lnkocn">467</a></label>
  <p class="code" id="o467">
    $ mkdir -p config/includes.chroot/var/www<br />
$ cp /path/to/my/index.html config/includes.chroot/var/www<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="468" href="#468" class="lnkocn">468</a></label>
  <p class="i0" id="o468">
    Your configuration will then have the following layout:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="469" href="#469" class="lnkocn">469</a></label>
  <p class="code" id="o469">
    -- config<br />
&nbsp;&nbsp;&nbsp;&nbsp;[...]<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|-- includes.chroot<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;`-- var<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`-- www<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`-- index.html<br />
&nbsp;&nbsp;&nbsp;&nbsp;[...]<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`-- templates<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="470" href="#470" class="lnkocn">470</a></label>
  <p class="i0" id="o470">
    Chroot local includes are installed after package installation so that files  installed by packages are overwritten.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="471" href="#471" class="lnkocn">471</a></label>
  <h6 class="norm" id="o471"><a name="471"></a>
    <a name="h9.1.2" ></a><a name="binary-local-includes" ></a><a name="hbinary-local-includes">9.1.2 Binary local includes</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="472" href="#472" class="lnkocn">472</a></label>
  <p class="i0" id="o472">
    To include material such as documentation or videos on the media filesystem  so that it is accessible immediately upon insertion of the media without  booting the Live system, you can use binary local includes. This works in a  similar fashion to chroot local includes. For example, suppose the files  <tt>~/video_demo.*</tt> are demo videos of the live system described by and  linked to by an HTML index page. Simply copy the material to  <tt>config/includes.binary/</tt> as follows:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="473" href="#473" class="lnkocn">473</a></label>
  <p class="code" id="o473">
    $ cp ~/video_demo.* config/includes.binary/<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="474" href="#474" class="lnkocn">474</a></label>
  <p class="i0" id="o474">
    These files will now appear in the root directory of the live media.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="475" href="#475" class="lnkocn">475</a></label>
  <h6 class="norm" id="o475"><a name="475"></a>
    <a name="h9.1.3" ></a><a name="binary-includes" ></a><a name="hbinary-includes">9.1.3 Binary includes</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="476" href="#476" class="lnkocn">476</a></label>
  <p class="i0" id="o476">
    <i>live-build</i> has some standard files (like documentation) that gets included  in the default configuration on every live media. This can be disabled with:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="477" href="#477" class="lnkocn">477</a></label>
  <p class="code" id="o477">
    $ lb config --includes none<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="478" href="#478" class="lnkocn">478</a></label>
  <p class="i0" id="o478">
    Otherwise, the material will be installed by <i>live-build</i> in <tt>/includes/</tt> by  default on the media filesystem, or else you can specify an alternate path  with <tt>--includes</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="479" href="#479" class="lnkocn">479</a></label>
  <h5 class="norm" id="o479"><a name="479"></a>
    <a name="9.2" ></a><a name="h9.2" ></a><a name="h9.2">9.2 Hooks</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="480" href="#480" class="lnkocn">480</a></label>
  <p class="i0" id="o480">
    Hooks allow commands to be performed in the chroot and binary stages of the  build in order to customize the image.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="481" href="#481" class="lnkocn">481</a></label>
  <h6 class="norm" id="o481"><a name="481"></a>
    <a name="h9.2.1" ></a><a name="live-chroot-local-hooks" ></a><a name="hlive-chroot-local-hooks">9.2.1 Live/chroot local hooks</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="482" href="#482" class="lnkocn">482</a></label>
  <p class="i0" id="o482">
    To run commands in the chroot stage, create a hook script with a <tt>.chroot</tt>  suffix containing the commands in the <tt>config/hooks/</tt> directory. The hook  will run in the chroot after the rest of your chroot configuration has been  applied, so remember to ensure your configuration includes all packages and  files your hook needs in order to run. See the example chroot hook scripts  for various common chroot customization tasks provided in  <tt>/usr/share/live/build/examples/hooks</tt> which you can copy or symlink to  use them in your own configuration.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="483" href="#483" class="lnkocn">483</a></label>
  <h6 class="norm" id="o483"><a name="483"></a>
    <a name="h9.2.2" ></a><a name="boot-time-hooks" ></a><a name="hboot-time-hooks">9.2.2 Boot-time hooks</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="484" href="#484" class="lnkocn">484</a></label>
  <p class="i0" id="o484">
    To execute commands at boot time, you can supply <i>live-config</i> hooks as  explained in the "Customization" section of its man page. Examine  <i>live-config</i>' s own hooks provided in <tt>/lib/live/config/</tt>, noting the  sequence numbers. Then provide your own hook prefixed with an appropriate  sequence number, either as a chroot local include in  <tt>config/includes.chroot/lib/live/config/</tt>, or as a custom package as  discussed in  <a href="#installing-modified-or-third-party-packages">Installing modified or third-party  packages</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="485" href="#485" class="lnkocn">485</a></label>
  <h6 class="norm" id="o485"><a name="485"></a>
    <a name="9.2.3" ></a><a name="h9.2.3" ></a><a name="h9.2.3">9.2.3 Binary local hooks</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="486" href="#486" class="lnkocn">486</a></label>
  <p class="i0" id="o486">
    To run commands in the binary stage, create a hook script with a <tt>.binary</tt>  suffix containing the commands in the <tt>config/hooks/</tt> directory. The hook  will run after all other binary commands are run, but before  binary_checksums, the very last binary command. The commands in your hook do  not run in the chroot, so take care to not modify any files outside of the  build tree, or you may damage your build system! See the example binary hook  scripts for various common binary customization tasks provided in  <tt>/usr/share/live/build/examples/hooks</tt> which you can copy or symlink to  use them in your own configuration.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="487" href="#487" class="lnkocn">487</a></label>
  <h5 class="norm" id="o487"><a name="487"></a>
    <a name="9.3" ></a><a name="h9.3" ></a><a name="h9.3">9.3 Preseeding Debconf questions</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="488" href="#488" class="lnkocn">488</a></label>
  <p class="i0" id="o488">
    Files in the <tt>config/preseed/</tt> directory suffixed with <tt>.preseed</tt>  followed by the stage (<tt>.chroot</tt> or <tt>.binary</tt>) are considered to be  debconf preseed files and are installed by <i>live-build</i> using  <tt>debconf-set-selections</tt> during the corresponding stage.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="489" href="#489" class="lnkocn">489</a></label>
  <p class="i0" id="o489">
    For more information about debconf, please see debconf(7) in the <tt>debconf</tt>  package.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="490" href="#490" class="lnkocn">490</a></label>
  <h4 class="norm" id="o490"><a name="490"></a>
    <a name="h10" ></a><a name="customizing_run_time_behaviours" ></a><a name="customizing-run-time-behaviours" ></a><a name="hcustomizing-run-time-behaviours">10. Customizing run time behaviours</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="491" href="#491" class="lnkocn">491</a></label>
  <p class="i0" id="o491">
    All configuration that is done during run time is done by <i>live-config</i>. Here  are some of the most common options of <i>live-config</i> that users are interested  in. A full list of all possibilities can be found in the manpage of  <i>live-config</i>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="492" href="#492" class="lnkocn">492</a></label>
  <h5 class="norm" id="o492"><a name="492"></a>
    <a name="10.1" ></a><a name="h10.1" ></a><a name="h10.1">10.1 Customizing the live user</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="493" href="#493" class="lnkocn">493</a></label>
  <p class="i0" id="o493">
    One important consideration is that the live user is created by <i>live-boot</i> at  boot time, not by <i>live-build</i> at build time. This not only influences where  materials relating to the live user are introduced in your build, as  discussed in  <a href="#live-chroot-local-includes">Live/chroot local includes</a>,  but  also any groups and permissions associated with the live user.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="494" href="#494" class="lnkocn">494</a></label>
  <p class="i0" id="o494">
    You can specify additional groups that the live user will belong to by  preseeding the <tt>passwd/user-default-groups</tt> debconf value. For example, to  add the live user to the <tt>fuse</tt> group, add the following preseed under  <tt>config/preseed/</tt> for the chroot stage:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="495" href="#495" class="lnkocn">495</a></label>
  <p class="code" id="o495">
    $ lb config<br />
$ echo user-setup passwd/user-default-groups string audio cdrom \<br />
&nbsp;&nbsp;&nbsp;dip floppy video plugdev netdev powerdev scanner bluetooth fuse \<br />
&nbsp;&nbsp;&nbsp;>> config/preseed/my.preseed.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="496" href="#496" class="lnkocn">496</a></label>
  <p class="i0" id="o496">
    It is also possible to change the default username "user" and the default  password "live". If you want to do that for any reason, you can easily  achieve it as follows:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="497" href="#497" class="lnkocn">497</a></label>
  <p class="i0" id="o497">
    To change the default username you can simply specify it in your config:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="498" href="#498" class="lnkocn">498</a></label>
  <p class="code" id="o498">
    $ lb config --bootappend-live "username=live-user"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="499" href="#499" class="lnkocn">499</a></label>
  <p class="i0" id="o499">
    One possible way of changing the default password is by means of a hook as  described in  <a href="#boot-time-hooks">Boot-time hooks</a>.  In order to do that you can  use the "passwd" hook from <tt>/usr/share/doc/live-config/examples/hooks</tt>,  prefix it accordingly (e.g. 200-passwd) and add it to  <tt>config/includes.chroot/lib/live/config/</tt>
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="500" href="#500" class="lnkocn">500</a></label>
  <h5 class="norm" id="o500"><a name="500"></a>
    <a name="h10.2" ></a><a name="customizing-locale-and-language" ></a><a name="hcustomizing-locale-and-language">10.2 Customizing locale and language</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="501" href="#501" class="lnkocn">501</a></label>
  <p class="i0" id="o501">
    When the live system boots, language is involved in three steps:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="502" href="#502" class="lnkocn">502</a></label>
  <li class="bullet" id="o502">
    the locale generation
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="503" href="#503" class="lnkocn">503</a></label>
  <li class="bullet" id="o503">
    setting the keyboard layout for the console
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="504" href="#504" class="lnkocn">504</a></label>
  <li class="bullet" id="o504">
    setting the keyboard layout for X
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="505" href="#505" class="lnkocn">505</a></label>
  <p class="i0" id="o505">
    The default locale when building a Live system is "locales=en_US.UTF-8". To  define the locale that should be generated, use the <tt>locales</tt> parameter in  the <tt>--bootappend-live</tt> option of <tt>lb config</tt>, e.g.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="506" href="#506" class="lnkocn">506</a></label>
  <p class="code" id="o506">
    $ lb config --bootappend-live "locales=de_CH.UTF-8"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="507" href="#507" class="lnkocn">507</a></label>
  <p class="i0" id="o507">
    This parameter can also be used at the kernel command line. You can specify  a locale by a full <tt>language_country.encoding</tt> word.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="508" href="#508" class="lnkocn">508</a></label>
  <p class="i0" id="o508">
    Both the console and X keyboard configuration depend on the  <tt>keyboard-layouts</tt> parameter of the <tt>--bootappend-live</tt> option. Valid  options for X keyboard layouts can be found in  <tt>/usr/share/X11/xkb/rules/base.xml</tt> (rather limited to two-letters country  codes). To find the value (the two characters) corresponding to a language  try searching for the english name of the nation where the language is  spoken, e.g:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="509" href="#509" class="lnkocn">509</a></label>
  <p class="code" id="o509">
    $ grep -i sweden -C3 /usr/share/X11/xkb/rules/base.xml | grep name<br />
&lt;name&gt;se&lt;/name&gt;<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="510" href="#510" class="lnkocn">510</a></label>
  <p class="i0" id="o510">
    To get the locale files for German and Swiss German keyboard layout in X  use:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="511" href="#511" class="lnkocn">511</a></label>
  <p class="code" id="o511">
    $ lb config --bootappend-live "locales=de_CH.UTF-8 keyboard-layouts=ch"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="512" href="#512" class="lnkocn">512</a></label>
  <p class="i0" id="o512">
    A list of the valid values of the keyboards for the console can be figured  with the following command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="513" href="#513" class="lnkocn">513</a></label>
  <p class="code" id="o513">
    $ for i in $(find /usr/share/keymaps/ -iname "*kmap.gz"); \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;do basename $i | head -c -9; echo; done | sort | less<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="514" href="#514" class="lnkocn">514</a></label>
  <p class="i0" id="o514">
    Alternatively, you can use the <tt>console-setup</tt> package, a tool to let you  configure console layout using X (XKB) definitions; you can then set your  keyboard layout more precisely with <tt>keyboard-layouts</tt>,  <tt>keyboard-variant</tt>, <tt>keyboard-options</tt> and <tt>keyboard-model</tt> variables;  <i>live-boot</i> will use also these parameters for X configuration. For example,  to set up a French system with a French-Dvorak layout (called Bepo) on a  TypeMatrix keyboard, both in console and X11, use:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="515" href="#515" class="lnkocn">515</a></label>
  <p class="code" id="o515">
    $ lb config --bootappend-live \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"locales=fr_FR.UTF-8 keyboard-layouts=fr keyboard-variant=bepo keyboard-model=tm2030usb"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="516" href="#516" class="lnkocn">516</a></label>
  <h5 class="norm" id="o516"><a name="516"></a>
    <a name="h10.3" ></a><a name="persistence" ></a><a name="hpersistence">10.3 Persistence</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="517" href="#517" class="lnkocn">517</a></label>
  <p class="i0" id="o517">
    A live cd paradigm is a pre-installed system which runs from read-only  media, like a cdrom, where writes and modifications do not survive reboots  of the host hardware which runs it.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="518" href="#518" class="lnkocn">518</a></label>
  <p class="i0" id="o518">
    A Debian Live system is a generalization of this paradigm and thus supports  other media in addition to CDs; but still, in its default behaviour, it  should be considered read-only and all the run-time evolutions of the system  are lost at shutdown.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="519" href="#519" class="lnkocn">519</a></label>
  <p class="i0" id="o519">
    Persistence is a common name for different kinds of solutions for saving  across reboots some, or all, of this run-time evolution of the system. To  understand how it could work it could be handy to know that even if the  system is booted and run from read-only media, modification to the files and  directories are written on writable media, typically a ram disk (tmpfs) and  ram disks' data do not survive reboots.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="520" href="#520" class="lnkocn">520</a></label>
  <p class="i0" id="o520">
    The data stored on this ramdisk should be saved on a writable persistent  medium like a Hard Disk, a USB key, a network share or even a session of a  multisession (re)writable CD/DVD. All these media are supported in Debian  Live in different ways, and all but the last one require a special boot  parameter to be specified at boot time: <tt>persistent</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="521" href="#521" class="lnkocn">521</a></label>
  <h6 class="norm" id="o521"><a name="521"></a>
    <a name="10.3.1" ></a><a name="h10.3.1" ></a><a name="h10.3.1">10.3.1 Full persistence</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="522" href="#522" class="lnkocn">522</a></label>
  <p class="i0" id="o522">
    By 'full persistence' it is meant that instead of using a tmpfs for storing  modifications to the read-only media (with the copy-on-write, COW, system) a  writable partition is used. In order to use this feature a partition with a  clean writable supported filesystem on it labeled "live-rw" must be attached  on the system at boot time and the system must be started with the boot  parameter 'persistent'. This partition could be an ext2 partition on the  hard disk or on a usb key created with, e.g.:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="523" href="#523" class="lnkocn">523</a></label>
  <p class="code" id="o523">
    # mkfs.ext2 -L live-rw /dev/sdb1<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="524" href="#524" class="lnkocn">524</a></label>
  <p class="i0" id="o524">
    See also  <a href="#using-usb-extra-space">Using the space left on a USB stick</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="525" href="#525" class="lnkocn">525</a></label>
  <p class="i0" id="o525">
    If you already have a partition on your device, you could just change the  label with one of the following:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="526" href="#526" class="lnkocn">526</a></label>
  <p class="code" id="o526">
    # tune2fs -L live-rw /dev/sdb1 # for ext2,3,4 filesystems<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="527" href="#527" class="lnkocn">527</a></label>
  <p class="i0" id="o527">
    But since live system users cannot always use a hard drive partition, and  considering that most USB keys have poor write speeds, 'full' persistence  could be also used with just image files, so you could create a file  representing a partition and put this image file even on a NTFS partition of  a foreign OS, with something like:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="528" href="#528" class="lnkocn">528</a></label>
  <p class="code" id="o528">
    $ dd if=/dev/null of=live-rw bs=1G seek=1 # for a 1GB sized image file<br />
$ /sbin/mkfs.ext2 -F live-rw<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="529" href="#529" class="lnkocn">529</a></label>
  <p class="i0" id="o529">
    Then copy the <tt>live-rw</tt> file to a writable partition and reboot with the  boot parameter 'persistent'.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="530" href="#530" class="lnkocn">530</a></label>
  <h6 class="norm" id="o530"><a name="530"></a>
    <a name="10.3.2" ></a><a name="h10.3.2" ></a><a name="h10.3.2">10.3.2 Home automounting</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="531" href="#531" class="lnkocn">531</a></label>
  <p class="i0" id="o531">
    If during the boot a partition (filesystem) image file or a partition  labeled <tt>home-rw</tt> is discovered, this filesystem will be directly mounted  as <tt>/home</tt>, thus permitting persistence of files that belong to e.g. the  default user. It can be combined with full persistence.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="532" href="#532" class="lnkocn">532</a></label>
  <h6 class="norm" id="o532"><a name="532"></a>
    <a name="10.3.3" ></a><a name="h10.3.3" ></a><a name="h10.3.3">10.3.3 Snapshots</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="533" href="#533" class="lnkocn">533</a></label>
  <p class="i0" id="o533">
    Snapshots are collections of files and directories which are not mounted  while running but which are copied from a persistent device to the system  (tmpfs) at boot and which are resynced at reboot/shutdown of the system. The  content of a snapshot could reside on a partition or an image file (like the  above mentioned types) labeled <tt>live-sn</tt>, but it defaults to a simple cpio  archive named <tt>live-sn.cpio.gz</tt>. As above, at boot time, the block devices  connected to the system are traversed to see if a partition or a file named  like that could be found. A power interruption during run time could lead to  data loss, hence a tool invoked <tt>live-snapshot --refresh</tt> could be called  to sync important changes. This type of persistence, since it does not write  continuously to the persistent media, is the most flash-based device  friendly and the fastest of all the persistence systems.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="534" href="#534" class="lnkocn">534</a></label>
  <p class="i0" id="o534">
    A /home version of snapshot exists too and its label is <tt>home-sn.*</tt>; it  works the same as the main snapshot but it is only applied to /home.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="535" href="#535" class="lnkocn">535</a></label>
  <p class="i0" id="o535">
    Snapshots cannot currently handle file deletion but full persistence and  home automounting can.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="536" href="#536" class="lnkocn">536</a></label>
  <h6 class="norm" id="o536"><a name="536"></a>
    <a name="10.3.4" ></a><a name="h10.3.4" ></a><a name="h10.3.4">10.3.4 Persistent SubText</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="537" href="#537" class="lnkocn">537</a></label>
  <p class="i0" id="o537">
    If a user would need multiple persistent storage of the same type for  different locations or testing, such as <tt>live-rw-nonwork</tt> and  <tt>live-rw-work</tt>, the boot parameter <tt>persistent-subtext</tt> used in  conjunction with the boot parameter <tt>persistent</tt> will allow for multiple  but unique persistent media. An example would be if a user wanted to use a  persistent partition labeled <tt>live-sn-subText</tt> they would use the boot  parameters of: <tt>persistent</tt> <tt>persistent-subtext=subText</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="538" href="#538" class="lnkocn">538</a></label>
  <h6 class="norm" id="o538"><a name="538"></a>
    <a name="10.3.5" ></a><a name="h10.3.5" ></a><a name="h10.3.5">10.3.5 Partial remastering</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="539" href="#539" class="lnkocn">539</a></label>
  <p class="i0" id="o539">
    The run-time modification of the tmpfs could be collected using  live-snapshot in a squashfs and added to the cd by remastering the iso in  the case of cd-r or adding a session to multisession cd/dvd(rw); <i>live-boot</i>  mounts all /live filesystem in order or with the module boot parameter.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="540" href="#540" class="lnkocn">540</a></label>
  <h4 class="norm" id="o540"><a name="540"></a>
    <a name="h11" ></a><a name="customizing_the_binary_image" ></a><a name="customizing-binary" ></a><a name="hcustomizing-binary">11. Customizing the binary image</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="541" href="#541" class="lnkocn">541</a></label>
  <h5 class="norm" id="o541"><a name="541"></a>
    <a name="11.1" ></a><a name="h11.1" ></a><a name="h11.1">11.1 Bootloader</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="542" href="#542" class="lnkocn">542</a></label>
  <p class="i0" id="o542">
    <i>live-build</i> uses syslinux as bootloader by default, which is by default  configured to pause indefinitely at its splash screen. To adjust this, you  can pass <tt>--syslinux-timeout TIMEOUT</tt> to <tt>lb config</tt>. The value is  specified in units of seconds. A timeout of 0 (zero) disables the timeout  completely. For more information please see syslinux(1).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="543" href="#543" class="lnkocn">543</a></label>
  <h5 class="norm" id="o543"><a name="543"></a>
    <a name="11.2" ></a><a name="h11.2" ></a><a name="h11.2">11.2 ISO metadata</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="544" href="#544" class="lnkocn">544</a></label>
  <p class="i0" id="o544">
    When creating an ISO9660 binary image, you can use the following options to  add various textual metadata for your image. This can help you easily  identify the version or configuration of an image without booting it.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="545" href="#545" class="lnkocn">545</a></label>
  <li class="bullet" id="o545">
    <tt>LB_ISO_APPLICATION/--iso-application NAME</tt>: This should describe the  application that will be on the image. The maximum length for this field is  128 characters.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="546" href="#546" class="lnkocn">546</a></label>
  <li class="bullet" id="o546">
    <tt>LB_ISO_PREPARER/--iso-preparer NAME</tt>: This should describe the  preparer of the image, usually with some contact details. The default for  this option is the <i>live-build</i> version you are using, which may help with  debugging later. The maximum length for this field is 128 characters.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="547" href="#547" class="lnkocn">547</a></label>
  <li class="bullet" id="o547">
    <tt>LB_ISO_PUBLISHER/--iso-publisher NAME</tt>: This should describe the  publisher of the image, usually with some contact details. The maximum  length for this field is 128 characters.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="548" href="#548" class="lnkocn">548</a></label>
  <li class="bullet" id="o548">
    <tt>LB_ISO_VOLUME/--iso-volume NAME</tt>: This should specify the volume ID of  the image. This is used as a user-visible label on some platforms such as  Windows and Apple Mac OS. The maximum length for this field is 32  characters.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="549" href="#549" class="lnkocn">549</a></label>
  <h4 class="norm" id="o549"><a name="549"></a>
    <a name="h12" ></a><a name="customizing_debian_installer" ></a><a name="customizing-installer" ></a><a name="hcustomizing-installer">12. Customizing Debian Installer</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="550" href="#550" class="lnkocn">550</a></label>
  <p class="i0" id="o550">
    Debian Live system images can be integrated with Debian Installer. There are  a number of different types of installation, varying in what is included and  how the installer operates.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="551" href="#551" class="lnkocn">551</a></label>
  <p class="i0" id="o551">
    Please note the careful use of capital letters when referring to the "Debian  Installer" in this section - when used like this we refer explicitly to the  official installer for the Debian system, not anything else. It is often  seen abbreviated to "d-i".
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="552" href="#552" class="lnkocn">552</a></label>
  <h5 class="norm" id="o552"><a name="552"></a>
    <a name="12.1" ></a><a name="h12.1" ></a><a name="h12.1">12.1 Types of Debian Installer</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="553" href="#553" class="lnkocn">553</a></label>
  <p class="i0" id="o553">
    The three main types of installer are:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="554" href="#554" class="lnkocn">554</a></label>
  <p class="i0" id="o554">
    <b>"Regular" Debian Installer</b>: This is a normal Debian Live image with a seperate kernel and initrd which (when selected from the appropriate bootloader) launches into a standard Debian Installer instance, just as if you had downloaded a CD image of Debian and booted it. Images containing a live system and such an otherwise independent installer are often referred to as "combined images".
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="555" href="#555" class="lnkocn">555</a></label>
  <p class="i0" id="o555">
    On such images, Debian is installed by fetching and installing .deb packages  using <tt>debootstrap</tt> or <tt>cdebootstrap</tt>, from the local media or some  network-based network, resulting in a standard Debian system being installed  to the hard disk.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="556" href="#556" class="lnkocn">556</a></label>
  <p class="i0" id="o556">
    This whole process can be preseeded and customized in a number of ways; see  the relevant pages in the Debian Installer manual for more information. Once  you have a working preseeding file, <i>live-build</i> can automatically put it in  the image and enable it for you.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="557" href="#557" class="lnkocn">557</a></label>
  <p class="i0" id="o557">
    <b>"Live" Debian Installer</b>: This is a Debian Live image with a separate kernel and initrd which (when selected from the appropriate bootloader) launches into an instance of the Debian Installer.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="558" href="#558" class="lnkocn">558</a></label>
  <p class="i0" id="o558">
    Installation will proceed in an identical fashion to the "Regular"  installation described above, but at the actual package installation stage,  instead of using <tt>debootstrap</tt> to fetch and install packages, the live  filesystem image is copied to the target. This is achieved with a special  udeb called <i>live-installer</i>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="559" href="#559" class="lnkocn">559</a></label>
  <p class="i0" id="o559">
    After this stage, the Debian Installer continues as normal, installing and  configuring items such as bootloaders and local users, etc.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="560" href="#560" class="lnkocn">560</a></label>
  <p class="i0" id="o560">
    Note: to support both normal and live installer entries in the bootloader of  the same live media, you must disable <i>live-installer</i> by preseeding  <tt>live-installer/enable=false</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="561" href="#561" class="lnkocn">561</a></label>
  <p class="i0" id="o561">
    <b>"Desktop" Debian Installer</b>: Regardless of the type of Debian Installer included, <tt>d-i</tt> can be launched from the Desktop by clicking on an icon. This is user friendlier in some situations. In order to make use of this, the <i>debian-installer-launcher</i> package needs to be included.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="562" href="#562" class="lnkocn">562</a></label>
  <p class="i0" id="o562">
    Note that by default, <i>live-build</i> does not include Debian Installer images in  the images, it needs to be specifically enabled with <tt>lb config</tt>. Also,  please note that for the "Desktop" installer to work, the kernel of the live  system must match the kernel <tt>d-i</tt> uses for the specified  architecture. For example:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="563" href="#563" class="lnkocn">563</a></label>
  <p class="code" id="o563">
    $ lb config --architecture i386 --linux-flavours 486 \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--debian-installer live<br />
$ echo debian-installer-launcher >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="564" href="#564" class="lnkocn">564</a></label>
  <h5 class="norm" id="o564"><a name="564"></a>
    <a name="12.2" ></a><a name="h12.2" ></a><a name="h12.2">12.2 Customizing Debian Installer by preseeding</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="565" href="#565" class="lnkocn">565</a></label>
  <p class="i0" id="o565">
    As described in the Debian Installer Manual, Appendix B at  ‹<a href="http://www.debian.org/releases/stable/i386/apb.html" target="_top">http://www.debian.org/releases/stable/i386/apb.html</a>›, "Preseeding provides a  way to set answers to questions asked during the installation process,  without having to manually enter the answers while the installation is  running. This makes it possible to fully automate most types of installation  and even offers some features not available during normal installations."  This kind of customization is best accomplished with <i>live-build</i> by placing  the configuration in a <tt>preseed.cfg</tt> file included in  <tt>config/binary_debian-installer/</tt>. For example, to preseed setting the  locale to <tt>en_US</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="566" href="#566" class="lnkocn">566</a></label>
  <p class="code" id="o566">
    $ echo "d-i debian-installer/locale string en_US" \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;>> config/binary_debian-installer/preseed.cfg<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="567" href="#567" class="lnkocn">567</a></label>
  <h5 class="norm" id="o567"><a name="567"></a>
    <a name="12.3" ></a><a name="h12.3" ></a><a name="h12.3">12.3 Customizing Debian Installer content</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="568" href="#568" class="lnkocn">568</a></label>
  <p class="i0" id="o568">
    For experimental or debugging purposes, you might want to include locally  built <tt>d-i</tt> component udeb packages. Place these in  <tt>config/packages.binary/</tt> to include them in the image. Additional or  replacement files and directories may be included in the installer initrd as  well, in a similar fashion to  <a href="#live-chroot-local-includes">Live/chroot local  includes</a>,  by placing the material in  <tt>config/binary_debian-installer-includes/</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="569" href="#569" class="lnkocn">569</a></label>
  <h2 class="norm" id="o569"><a name="569"></a>
    <a name="h">Projekt</a>
  </h2>
</div>

<div class="substance">
  <label class="ocn"><a name="570" href="#570" class="lnkocn">570</a></label>
  <h4 class="norm" id="o570"><a name="570"></a>
    <a name="h13" ></a><a name="reporting_bugs" ></a><a name="bugs" ></a><a name="hbugs">13. Reporting bugs</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="571" href="#571" class="lnkocn">571</a></label>
  <p class="i0" id="o571">
    Debian Live is far from being perfect, but we want to make it as close as  possible to perfect - with your help. Do not hesitate to report a bug: it is  better to fill a report twice than never. However, this chapter includes  recommendations how to file good bug reports.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="572" href="#572" class="lnkocn">572</a></label>
  <p class="i0" id="o572">
    For the impatient:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="573" href="#573" class="lnkocn">573</a></label>
  <li class="bullet" id="o573">
    Always check first the image status updates on our homepage at  ‹<a href="http://live.debian.net/" target="_top">http://live.debian.net/</a>› for known issues.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="574" href="#574" class="lnkocn">574</a></label>
  <li class="bullet" id="o574">
    Always try to reproduce the bug with the <b>most recent versions</b> of  <i>live-build</i>, <i>live-boot</i>, and <i>live-config</i> before submitting a bug report.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="575" href="#575" class="lnkocn">575</a></label>
  <li class="bullet" id="o575">
    Try to give <b>as specific information as possible</b> about the bug. This  includes (at least) the version of <i>live-build</i>, <i>live-boot</i>, and <i>live-config</i>  used and the distribution of the live system you are building.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="576" href="#576" class="lnkocn">576</a></label>
  <h5 class="norm" id="o576"><a name="576"></a>
    <a name="13.1" ></a><a name="h13.1" ></a><a name="h13.1">13.1 Known issues</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="577" href="#577" class="lnkocn">577</a></label>
  <p class="i0" id="o577">
    Because Debian <b>testing</b> and Debian <b>unstable</b> distributions are a  moving target, when you specify either as the target system distribution, a  successful build may not always be possible.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="578" href="#578" class="lnkocn">578</a></label>
  <p class="i0" id="o578">
    If this causes too much difficulty for you, do not build a system based on  <b>testing</b> or <b>unstable</b>, but rather, use <b>stable</b>. <i>live-build</i> does  always default to the <b>stable</b> release.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="579" href="#579" class="lnkocn">579</a></label>
  <p class="i0" id="o579">
    Currently known issues are listed under the section 'status' on our homepage  at ‹<a href="http://live.debian.net/" target="_top">http://live.debian.net/</a>›.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="580" href="#580" class="lnkocn">580</a></label>
  <p class="i0" id="o580">
    It is out of the scope of this manual to train you to correctly identify and  fix problems in packages of the development distributions, however, there  are two things you can always try: If a build fails when the target  distribution is <b>testing</b>, try <b>unstable</b>. If <b>unstable</b> does not work  either, revert to <b>testing</b> and pin the newer version of the failing  package from <b>unstable</b> (see  <a href="#apt-pinning">APT pinning</a>  for details).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="581" href="#581" class="lnkocn">581</a></label>
  <h5 class="norm" id="o581"><a name="581"></a>
    <a name="13.2" ></a><a name="h13.2" ></a><a name="h13.2">13.2 Rebuild from scratch</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="582" href="#582" class="lnkocn">582</a></label>
  <p class="i0" id="o582">
    To ensure that a particular bug is not caused by an uncleanly built system,  please always rebuild the whole live system from scratch to see if the bug  is reproducible.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="583" href="#583" class="lnkocn">583</a></label>
  <h5 class="norm" id="o583"><a name="583"></a>
    <a name="13.3" ></a><a name="h13.3" ></a><a name="h13.3">13.3 Use up-to-date packages</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="584" href="#584" class="lnkocn">584</a></label>
  <p class="i0" id="o584">
    Using outdated packages can cause significant problems when trying to  reproduce (and ultimately fix) your problem. Make sure your build system is  up-to-date and any packages included in your image are up-to-date as well.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="585" href="#585" class="lnkocn">585</a></label>
  <h5 class="norm" id="o585"><a name="585"></a>
    <a name="h13.4" ></a><a name="collect-information" ></a><a name="hcollect-information">13.4 Collect information</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="586" href="#586" class="lnkocn">586</a></label>
  <p class="i0" id="o586">
    Please provide enough information with your report. At least include the  exact version of <i>live-build</i> version where the bug is encountered and steps  to reproduce it. Please use common sense and include other relevant  information if you think that it might help in solving the problem.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="587" href="#587" class="lnkocn">587</a></label>
  <p class="i0" id="o587">
    To make the most out of your bug report, we require at least the following  information:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="588" href="#588" class="lnkocn">588</a></label>
  <li class="bullet" id="o588">
    Architecture of the host system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="589" href="#589" class="lnkocn">589</a></label>
  <li class="bullet" id="o589">
    Version of <i>live-build</i> on the host system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="590" href="#590" class="lnkocn">590</a></label>
  <li class="bullet" id="o590">
    Version of <i>live-boot</i> on the live system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="591" href="#591" class="lnkocn">591</a></label>
  <li class="bullet" id="o591">
    Version of <i>live-config</i> on the live system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="592" href="#592" class="lnkocn">592</a></label>
  <li class="bullet" id="o592">
    Version of <tt>debootstrap</tt> and/or <tt>cdebootstrap</tt> on the host system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="593" href="#593" class="lnkocn">593</a></label>
  <li class="bullet" id="o593">
    Architecture of the live system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="594" href="#594" class="lnkocn">594</a></label>
  <li class="bullet" id="o594">
    Distribution of the live system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="595" href="#595" class="lnkocn">595</a></label>
  <li class="bullet" id="o595">
    Version of the kernel on the live system
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="596" href="#596" class="lnkocn">596</a></label>
  <p class="i0" id="o596">
    You can generate a log of the build process by using the <tt>tee</tt> command. We  recommend doing this automatically with an <tt>auto/build</tt> script; (see   <a href="#managing-a-configuration">Managing a configuration</a>  for details).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="597" href="#597" class="lnkocn">597</a></label>
  <p class="code" id="o597">
    # lb build 2>&1 | tee build.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="598" href="#598" class="lnkocn">598</a></label>
  <p class="i0" id="o598">
    At boot time, <i>live-boot</i> stores a log in <tt>/var/log/live.log</tt> (or  <tt>/var/log/live-boot.log</tt>).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="599" href="#599" class="lnkocn">599</a></label>
  <p class="i0" id="o599">
    Additionally, to rule out other errors, it is always a good idea to tar up  your <tt>config/</tt> directory and upload it somewhere (do <b>not</b> send it as an  attachment to the mailing list), so that we can try to reproduce the errors  you encountered. If this is difficult (e.g. due to size) you can use the  output of <tt>lb config --dump</tt> which produces a summary of your config tree  (i.e. lists files in subdirectories of <tt>config/</tt> but does not include  them).
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="600" href="#600" class="lnkocn">600</a></label>
  <p class="i0" id="o600">
    Remember to send in any logs that were produced with English locale  settings, e.g. run your <i>live-build</i> commands with a leading <tt>LC_ALL=C</tt> or  <tt>LC_ALL=en_US</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="601" href="#601" class="lnkocn">601</a></label>
  <h5 class="norm" id="o601"><a name="601"></a>
    <a name="13.5" ></a><a name="h13.5" ></a><a name="h13.5">13.5 Isolate the failing case if possible</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="602" href="#602" class="lnkocn">602</a></label>
  <p class="i0" id="o602">
    If possible, isolate the failing case to the smallest possible change that  breaks. It is not always easy to do this, so if you can't manage it for your  report, don't worry. However, if you plan your development cycle well, using  small enough change sets per iteration, you may be able to isolate the  problem by constructing a simpler 'base' configuration that closely matches  your actual configuration plus just the broken change set added to it. If  you have a hard time sorting out which of your changes broke, it may be that  you are including too much in each change set and should develop in smaller  increments.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="603" href="#603" class="lnkocn">603</a></label>
  <h5 class="norm" id="o603"><a name="603"></a>
    <a name="13.6" ></a><a name="h13.6" ></a><a name="h13.6">13.6 Use the correct package to report the bug against</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="604" href="#604" class="lnkocn">604</a></label>
  <p class="i0" id="o604">
    Where does the bug appear?
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="605" href="#605" class="lnkocn">605</a></label>
  <h6 class="norm" id="o605"><a name="605"></a>
    <a name="13.6.1" ></a><a name="h13.6.1" ></a><a name="h13.6.1">13.6.1 At build time whilst bootstrapping</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="606" href="#606" class="lnkocn">606</a></label>
  <p class="i0" id="o606">
    <i>live-build</i> first bootstraps a basic Debian system with <tt>debootstrap</tt> or  <tt>cdebootstrap</tt>. Depending on the bootstrapping tool used and the Debian  distribution it is bootstrapping, it may fail. If a bug appears here, check  if the error is related to a specific Debian package (most likely), or if it  is related to bootstrapping tool itself.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="607" href="#607" class="lnkocn">607</a></label>
  <p class="i0" id="o607">
    In both cases, this is not a bug in Debian Live, but rather in Debian itself  which we can not fix this directly. Please report such a bug against the  bootstrapping tool or the failing package.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="608" href="#608" class="lnkocn">608</a></label>
  <h6 class="norm" id="o608"><a name="608"></a>
    <a name="13.6.2" ></a><a name="h13.6.2" ></a><a name="h13.6.2">13.6.2 At build time whilst installing packages</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="609" href="#609" class="lnkocn">609</a></label>
  <p class="i0" id="o609">
    <i>live-build</i> installs additional packages from the Debian archive and  depending on the Debian distribution used and the daily archive state, it  can fail. If a bug appears here, check if the error is also reproducible on  a normal system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="610" href="#610" class="lnkocn">610</a></label>
  <p class="i0" id="o610">
    If this is the case, this is not a bug in Debian Live, but rather in Debian  - please report it against the failing package. Running <tt>debootstrap</tt>  separately from the Live system build or running <tt>lb bootstrap --debug</tt>  will give you more information.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="611" href="#611" class="lnkocn">611</a></label>
  <p class="i0" id="o611">
    Also, if you are using a local mirror and/or any of sort of proxy and you  are experiencing a problem, please always reproduce it first by  bootstrapping from an official mirror.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="612" href="#612" class="lnkocn">612</a></label>
  <h6 class="norm" id="o612"><a name="612"></a>
    <a name="13.6.3" ></a><a name="h13.6.3" ></a><a name="h13.6.3">13.6.3 At boot time</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="613" href="#613" class="lnkocn">613</a></label>
  <p class="i0" id="o613">
    If your image does not boot, please report it to the mailing list together  with the information requested in  <a href="#collect-information">Collect  information</a>.  Do not forget to mention, how/when the  image failed, in Qemu, Virtualbox, VMWare or real hardware. If you are using  a virtualization technology of any kind, please always run it on real  hardware before reporting a bug. Providing a screenshot of the failure is  also very helpful.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="614" href="#614" class="lnkocn">614</a></label>
  <h6 class="norm" id="o614"><a name="614"></a>
    <a name="13.6.4" ></a><a name="h13.6.4" ></a><a name="h13.6.4">13.6.4 At run time</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="615" href="#615" class="lnkocn">615</a></label>
  <p class="i0" id="o615">
    If a package was successfully installed, but fails while actually running  the Live system, this is probably a bug in Debian Live. However,
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="616" href="#616" class="lnkocn">616</a></label>
  <h5 class="norm" id="o616"><a name="616"></a>
    <a name="13.7" ></a><a name="h13.7" ></a><a name="h13.7">13.7 Do the research</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="617" href="#617" class="lnkocn">617</a></label>
  <p class="i0" id="o617">
    Before filing the bug, please search the web for the particular error  message or symptom you are getting. As it is highly unlikely that you are  the only person experiencing a particular problem, there is always a chance  that it has been discussed elsewhere, and a possible solution, patch, or  workaround has been proposed.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="618" href="#618" class="lnkocn">618</a></label>
  <p class="i0" id="o618">
    You should pay particular attention to the Debian Live mailing list, as well  as the homepage, as these are likely to contain the most up-to-date  information. If such information exists, always include the references to it  in your bug report.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="619" href="#619" class="lnkocn">619</a></label>
  <p class="i0" id="o619">
    In addition, you should check the current bug lists for <i>live-build</i>,  <i>live-boot</i>, and <i>live-config</i> to see whether something similar has been  reported already.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="620" href="#620" class="lnkocn">620</a></label>
  <h5 class="norm" id="o620"><a name="620"></a>
    <a name="13.8" ></a><a name="h13.8" ></a><a name="h13.8">13.8 Where to report bugs</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="621" href="#621" class="lnkocn">621</a></label>
  <p class="i0" id="o621">
    The Debian Live project keeps track of all bugs in the Debian Bug Tracking  System (BTS). For information on how to use the system, please see  ‹<a href="http://bugs.debian.org/" target="_top">http://bugs.debian.org/</a>›. You can also submit the bugs by using the  <tt>reportbug</tt> command from the package with the same name.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="622" href="#622" class="lnkocn">622</a></label>
  <p class="i0" id="o622">
    In general, you should report build time errors against the <i>live-build</i>  package, boot time errors against <i>live-boot</i>, and run time errors against  <i>live-config</i>. If you are unsure of which package is appropriate or need more  help before submitting a bug report, please send a message to the mailing  list and we will help you to figure it out.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="623" href="#623" class="lnkocn">623</a></label>
  <p class="i0" id="o623">
    Please note that bugs found in distributions derived from Debian (such as  Ubuntu and others) should <b>not</b> be reported to the Debian BTS unless they  can be also reproduced on a Debian system using official Debian packages.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="624" href="#624" class="lnkocn">624</a></label>
  <h4 class="norm" id="o624"><a name="624"></a>
    <a name="h14" ></a><a name="coding_style" ></a><a name="coding-style" ></a><a name="hcoding-style">14. Coding Style</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="625" href="#625" class="lnkocn">625</a></label>
  <p class="i0" id="o625">
    This chapter documents the coding style used in <i>live-boot</i> and others.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="626" href="#626" class="lnkocn">626</a></label>
  <h5 class="norm" id="o626"><a name="626"></a>
    <a name="14.1" ></a><a name="h14.1" ></a><a name="h14.1">14.1 Compatibility</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="627" href="#627" class="lnkocn">627</a></label>
  <li class="bullet" id="o627">
    Don't use syntax or semantics that are unique to the Bash shell. For  example, the use of array constructs.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="628" href="#628" class="lnkocn">628</a></label>
  <li class="bullet" id="o628">
    Only use the POSIX subset - for example, use $(foo) over `foo`.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="629" href="#629" class="lnkocn">629</a></label>
  <li class="bullet" id="o629">
    You can check your scripts with 'sh -n' and 'checkbashisms'.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="630" href="#630" class="lnkocn">630</a></label>
  <h5 class="norm" id="o630"><a name="630"></a>
    <a name="14.2" ></a><a name="h14.2" ></a><a name="h14.2">14.2 Indenting</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="631" href="#631" class="lnkocn">631</a></label>
  <li class="bullet" id="o631">
    Always use tabs over spaces.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="632" href="#632" class="lnkocn">632</a></label>
  <h5 class="norm" id="o632"><a name="632"></a>
    <a name="14.3" ></a><a name="h14.3" ></a><a name="h14.3">14.3 Wrapping</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="633" href="#633" class="lnkocn">633</a></label>
  <li class="bullet" id="o633">
    Generally, lines are 80 chars at maximum.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="634" href="#634" class="lnkocn">634</a></label>
  <li class="bullet" id="o634">
    Use the "Linux style" of line breaks:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="635" href="#635" class="lnkocn">635</a></label>
  <p class="i0" id="o635">
    Bad:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="636" href="#636" class="lnkocn">636</a></label>
  <p class="code" id="o636">
    if foo; then<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bar<br />
fi<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="637" href="#637" class="lnkocn">637</a></label>
  <p class="i0" id="o637">
    Good:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="638" href="#638" class="lnkocn">638</a></label>
  <p class="code" id="o638">
    if foo<br />
then<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bar<br />
fi<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="639" href="#639" class="lnkocn">639</a></label>
  <li class="bullet" id="o639">
    The same holds for functions:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="640" href="#640" class="lnkocn">640</a></label>
  <p class="i0" id="o640">
    Bad:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="641" href="#641" class="lnkocn">641</a></label>
  <p class="code" id="o641">
    foo () {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bar<br />
}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="642" href="#642" class="lnkocn">642</a></label>
  <p class="i0" id="o642">
    Good:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="643" href="#643" class="lnkocn">643</a></label>
  <p class="code" id="o643">
    foo ()<br />
{<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bar<br />
}<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="644" href="#644" class="lnkocn">644</a></label>
  <h5 class="norm" id="o644"><a name="644"></a>
    <a name="14.4" ></a><a name="h14.4" ></a><a name="h14.4">14.4 Variables</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="645" href="#645" class="lnkocn">645</a></label>
  <li class="bullet" id="o645">
    Variables are always in capital letters.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="646" href="#646" class="lnkocn">646</a></label>
  <li class="bullet" id="o646">
    Variables that used in <tt>lb config</tt> always start with <tt>LB_</tt> prefix.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="647" href="#647" class="lnkocn">647</a></label>
  <li class="bullet" id="o647">
    Internal temporary variables in <i>live-build</i> should start with the  <tt>&#095;LB_</tt> prefix.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="648" href="#648" class="lnkocn">648</a></label>
  <li class="bullet" id="o648">
    Local variables start with <i>live-build</i> <tt>&#095;&#095;LB_</tt> prefix.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="649" href="#649" class="lnkocn">649</a></label>
  <li class="bullet" id="o649">
    Variables in connection to a boot parameter in <i>live-config</i> start with  <tt>LIVE_</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="650" href="#650" class="lnkocn">650</a></label>
  <li class="bullet" id="o650">
    All other variables in <i>live-config</i> start with <tt>_</tt> prefix.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="651" href="#651" class="lnkocn">651</a></label>
  <li class="bullet" id="o651">
    Use braces around variables; e.g. write <tt>${FOO}</tt> instead of <tt>$FOO</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="652" href="#652" class="lnkocn">652</a></label>
  <li class="bullet" id="o652">
    Always protect variables with quotes to respect potential whitespaces:  write <tt>"${FOO}"</tt> not <tt>${FOO}</tt>.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="653" href="#653" class="lnkocn">653</a></label>
  <li class="bullet" id="o653">
    For consistency reasons, always use quotes when assigning values to  variables:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="654" href="#654" class="lnkocn">654</a></label>
  <p class="i0" id="o654">
    Bad:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="655" href="#655" class="lnkocn">655</a></label>
  <p class="code" id="o655">
    FOO=bar<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="656" href="#656" class="lnkocn">656</a></label>
  <p class="i0" id="o656">
    Good:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="657" href="#657" class="lnkocn">657</a></label>
  <p class="code" id="o657">
    FOO="bar"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="658" href="#658" class="lnkocn">658</a></label>
  <li class="bullet" id="o658">
    If multiple variables are used, quote the full expression:
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="659" href="#659" class="lnkocn">659</a></label>
  <p class="i0" id="o659">
    Bad:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="660" href="#660" class="lnkocn">660</a></label>
  <p class="code" id="o660">
    if [ -f "${FOO}"/foo/"${BAR}"/bar ]<br />
then<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;foobar<br />
fi<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="661" href="#661" class="lnkocn">661</a></label>
  <p class="i0" id="o661">
    Good:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="662" href="#662" class="lnkocn">662</a></label>
  <p class="code" id="o662">
    if [ -f "${FOO}/foo/${BAR}/bar" ]<br />
then<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;foobar<br />
fi<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="663" href="#663" class="lnkocn">663</a></label>
  <h5 class="norm" id="o663"><a name="663"></a>
    <a name="14.5" ></a><a name="h14.5" ></a><a name="h14.5">14.5 Miscellaneous</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="664" href="#664" class="lnkocn">664</a></label>
  <li class="bullet" id="o664">
    Use "<tt>|</tt>" (without the surround quotes) as a seperator in calls to sed,  e.g. "<tt>sed -e 's|foo|bar|'</tt>" (without "").
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="665" href="#665" class="lnkocn">665</a></label>
  <li class="bullet" id="o665">
    Don't use the <tt>test</tt> command for comparisons or tests, use "<tt>[</tt>"  "<tt>]</tt>" (without ""); e.g. "<tt>if [ -x /bin/foo ]; ...</tt>" and not "<tt>if test  -x /bin/foo; ...</tt>".
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="666" href="#666" class="lnkocn">666</a></label>
  <li class="bullet" id="o666">
    Use <tt>case</tt> wherever possible over <tt>test</tt>, as it's easier to read and  faster in execution.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="667" href="#667" class="lnkocn">667</a></label>
  <h4 class="norm" id="o667"><a name="667"></a>
    <a name="h15" ></a><a name="procedures" ></a><a name="hprocedures">15. Procedures</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="668" href="#668" class="lnkocn">668</a></label>
  <p class="i0" id="o668">
    This chapter documents the procedures within the Debian Live project for  various tasks that need cooperation with other teams in Debian.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="669" href="#669" class="lnkocn">669</a></label>
  <h5 class="norm" id="o669"><a name="669"></a>
    <a name="15.1" ></a><a name="h15.1" ></a><a name="h15.1">15.1 Udeb Uploads</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="670" href="#670" class="lnkocn">670</a></label>
  <p class="i0" id="o670">
    Before commiting releases of a udeb in d-i svn, one has to call:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="671" href="#671" class="lnkocn">671</a></label>
  <p class="code" id="o671">
    $ ../../scripts/l10n/output-l10n-changes . -d<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="672" href="#672" class="lnkocn">672</a></label>
  <h5 class="norm" id="o672"><a name="672"></a>
    <a name="15.2" ></a><a name="h15.2" ></a><a name="h15.2">15.2 Major Releases</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="673" href="#673" class="lnkocn">673</a></label>
  <p class="i0" id="o673">
    Releasing a new stable major version of Debian includes a lot of different  teams working together to make it happen. At some point, the Live team comes  in and builds live system images. The requirements to do this are:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="674" href="#674" class="lnkocn">674</a></label>
  <li class="bullet" id="o674">
    A mirror containing the released versions for the debian, debian-security  and debian-volatile archive which the debian-live buildd can access.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="675" href="#675" class="lnkocn">675</a></label>
  <li class="bullet" id="o675">
    The names of the image need to be known  (e.g. debian-live-VERSION-ARCH-FLAVOUR.iso).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="676" href="#676" class="lnkocn">676</a></label>
  <li class="bullet" id="o676">
    The packagelists need to have been updated.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="677" href="#677" class="lnkocn">677</a></label>
  <li class="bullet" id="o677">
    The data from debian-cd needs to be synced (udeb exclude lists).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="678" href="#678" class="lnkocn">678</a></label>
  <li class="bullet" id="o678">
    The includes from debian-cd needs to be synced (README.*, doc/*, etc.).
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="679" href="#679" class="lnkocn">679</a></label>
  <li class="bullet" id="o679">
    Images are built and mirrored on cdimage.debian.org.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="680" href="#680" class="lnkocn">680</a></label>
  <h5 class="norm" id="o680"><a name="680"></a>
    <a name="15.3" ></a><a name="h15.3" ></a><a name="h15.3">15.3 Point Releases</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="681" href="#681" class="lnkocn">681</a></label>
  <li class="bullet" id="o681">
    Again, we need updated mirror of debian, debian-security and  debian-volatile.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="682" href="#682" class="lnkocn">682</a></label>
  <li class="bullet" id="o682">
    Images are built and mirrored on cdimage.debian.org.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="683" href="#683" class="lnkocn">683</a></label>
  <li class="bullet" id="o683">
    Send announcement mail.
  </li>
</div>

<div class="substance">
  <label class="ocn"><a name="684" href="#684" class="lnkocn">684</a></label>
  <h6 class="norm" id="o684"><a name="684"></a>
    <a name="15.3.1" ></a><a name="h15.3.1" ></a><a name="h15.3.1">15.3.1 Point release announcement template</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="685" href="#685" class="lnkocn">685</a></label>
  <p class="i0" id="o685">
    An annoucement mail for point releases can be generated using the template  below and the following command:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="686" href="#686" class="lnkocn">686</a></label>
  <p class="code" id="o686">
    $ sed \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-e 's|%major%|5.0|g' \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-e 's|%minor%|5.0.2|g' \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-e 's|%codename%|lenny|g' \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-e 's|%release_mail%|2009/msg00007.html|g'<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="687" href="#687" class="lnkocn">687</a></label>
  <p class="i0" id="o687">
    Please check the mail carefully before sending and pass it to others for  proof-reading.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="688" href="#688" class="lnkocn">688</a></label>
  <p class="code" id="o688">
    Debian Live images for Debian GNU/Linux %major% updated<br /><br />
The Debian Live project is pleased to announce the availability of<br />
updated Live images for its stable distribution Debian GNU/Linux %major%<br />
(codename "%codename%").<br /><br />
The images are available for download at:<br /><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<http://cdimage.debian.org/cdimage/release/current-live/><br /> <br />
This update incorporates the changes made in the %minor% point release,<br />
which adds corrections for security problems to the stable release<br />
along with a few adjustments for serious problems. A full list of the<br />
changes may be viewed at:<br /><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<http://lists.debian.org/debian-announce/%release_mail%><br /> <br />
It also includes the following Live-specific changes:<br /><br />
&nbsp;&nbsp;* [INSERT LIVE-SPECIFIC CHANGE HERE]<br />
&nbsp;&nbsp;* [INSERT LIVE-SPECIFIC CHANGE HERE]<br />
&nbsp;&nbsp;* [LARGER ISSUES MAY DESERVE THEIR OWN SECTION]<br /><br />
URLs<br />
----<br /><br />
Download location of updated images:<br /><br />
&nbsp;&nbsp;&nbsp;<http://cdimage.debian.org/cdimage/release/current-live/><br /> <br />
Debian Live project homepage:<br /><br />
&nbsp;&nbsp;&nbsp;<http://live.debian.net/><br /> <br />
The current stable distribution:<br /><br />
&nbsp;&nbsp;&nbsp;<http://ftp.debian.org/debian/dists/stable><br /> <br />
stable distribution information (release notes, errata etc.):<br /><br />
&nbsp;&nbsp;&nbsp;<http://www.debian.org/releases/stable/><br /> <br />
Security announcements and information:<br /><br />
&nbsp;&nbsp;&nbsp;<http://www.debian.org/security/><br /> <br />
About Debian<br />
-------------<br /><br />
The Debian Project is an association of Free Software developers who<br />
volunteer their time and effort in order to produce the completely free<br />
operating system Debian GNU/Linux.<br /><br />
About Debian Live<br />
-----------------<br /><br />
Debian Live is an official sub-project of Debian which produces Debian<br />
systems that do not require a classical installer. Images are available<br />
for CD/DVD discs, USB sticks and PXE netbooting as well as a bare<br />
filesystem images for booting directly from the internet.<br /><br />
Contact Information<br />
-------------------<br /><br />
For further information, please visit the Debian Live web pages at<br />
<http://live.debian.net/> or alternatively send mail to<br />
<debian-live@lists.debian.org>.<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="689" href="#689" class="lnkocn">689</a></label>
  <h2 class="norm" id="o689"><a name="689"></a>
    <a name="h">Beispiele</a>
  </h2>
</div>

<div class="substance">
  <label class="ocn"><a name="690" href="#690" class="lnkocn">690</a></label>
  <h4 class="norm" id="o690"><a name="690"></a>
    <a name="h16" ></a><a name="examples" ></a><a name="hexamples">16. Examples</a>
  </h4>
</div>

<div class="substance">
  <label class="ocn"><a name="691" href="#691" class="lnkocn">691</a></label>
  <p class="i0" id="o691">
    This chapter covers example builds for specific use cases with Debian  Live. If you are new to building your own Debian Live images, we recommend  you first look at the three tutorials in sequence, as each one teaches new  techniques that will help you use and understand the remaining examples.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="692" href="#692" class="lnkocn">692</a></label>
  <h5 class="norm" id="o692"><a name="692"></a>
    <a name="h16.1" ></a><a name="using-the-examples" ></a><a name="husing-the-examples">16.1 Using the examples</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="693" href="#693" class="lnkocn">693</a></label>
  <p class="i0" id="o693">
    To use these examples you need a system to build them on that meets the  requirements listed in  <a href="#requirements">Requirements</a>  and has <i>live-build</i>  installed as described in  <a href="#installing-live-build">Installing live-build</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="694" href="#694" class="lnkocn">694</a></label>
  <p class="i0" id="o694">
    Note that, for the sake of brevity, in these examples we do not specify a  local mirror to use for the build. You can speed up downloads considerably  if you use a local mirror. You may specify the options when you use <tt>lb  config</tt>, as described in  <a href="#distribution-mirrors-build-time">Distribution mirrors used at build  time</a>,  or for more convenience, set the  default for your build system in <tt>/etc/live/build.conf</tt>. Simply create  this file and in it, set the corresponding <tt>LB_PARENT_MIRROR_*</tt> variables  to your preferred mirror. All other mirrors used in the build will be  defaulted from these values. For example:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="695" href="#695" class="lnkocn">695</a></label>
  <p class="code" id="o695">
    LB_PARENT_MIRROR_BOOTSTRAP="http://mirror/debian" <br />
LB_PARENT_MIRROR_CHROOT_SECURITY="http://mirror/debian-security" <br />
LB_PARENT_MIRROR_CHROOT_BACKPORTS="http://mirror/debian-updates"<br /> <br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="696" href="#696" class="lnkocn">696</a></label>
  <h5 class="norm" id="o696"><a name="696"></a>
    <a name="h16.2" ></a><a name="tutorial-1" ></a><a name="htutorial-1">16.2 Tutorial 1: A standard image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="697" href="#697" class="lnkocn">697</a></label>
  <p class="i0" id="o697">
    <b>Use case:</b> Create a simple first image, learning the basics of <i>live-build</i>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="698" href="#698" class="lnkocn">698</a></label>
  <p class="i0" id="o698">
    In this tutorial, we will build a default ISO hybrid Debian Live image  containing only base packages (no Xorg) and some Debian Live support  packages, as a first exercise in using <i>live-build</i>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="699" href="#699" class="lnkocn">699</a></label>
  <p class="i0" id="o699">
    You can't get much simpler than this:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="700" href="#700" class="lnkocn">700</a></label>
  <p class="code" id="o700">
    $ mkdir tutorial1 ; cd tutorial1 ; lb config<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="701" href="#701" class="lnkocn">701</a></label>
  <p class="i0" id="o701">
    Examine the contents of the <tt>config/</tt> directory if you wish. You will see  stored here a skeletal configuration, ready to customize or, in this case,  use immediately to build a default image.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="702" href="#702" class="lnkocn">702</a></label>
  <p class="i0" id="o702">
    Now, as superuser, build the image, saving a log as you build with <tt>tee</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="703" href="#703" class="lnkocn">703</a></label>
  <p class="code" id="o703">
    # lb build 2>&1 | tee binary.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="704" href="#704" class="lnkocn">704</a></label>
  <p class="i0" id="o704">
    Assuming all goes well, after a while, the current directory will contain  <tt>binary-hybrid.iso</tt>. This ISO hybrid image can be booted directly in a  virtual machine as described in  <a href="#testing-iso-with-qemu">Testing an ISO image with  Qemu</a>  and  <a href="#testing-iso-with-virtualbox">Testing an ISO image with  virtualbox-ose</a>,  or else imaged onto optical  media or a USB flash device as described in  <a href="#burning-iso-image">Burning an ISO image to a  physical medium</a>  and  <a href="#copying-iso-hybrid-to-usb">Copying an ISO hybrid image to a USB  stick</a>,  respectively.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="705" href="#705" class="lnkocn">705</a></label>
  <h5 class="norm" id="o705"><a name="705"></a>
    <a name="h16.3" ></a><a name="tutorial-2" ></a><a name="htutorial-2">16.3 Tutorial 2: A web browser utility</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="706" href="#706" class="lnkocn">706</a></label>
  <p class="i0" id="o706">
    <b>Use case:</b> Create a web browser utility image, learning how to apply customizations.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="707" href="#707" class="lnkocn">707</a></label>
  <p class="i0" id="o707">
    In this tutorial, we will create an image suitable for use as a web browser  utility, serving as an introduction to customizing Debian Live images.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="708" href="#708" class="lnkocn">708</a></label>
  <p class="code" id="o708">
    $ mkdir tutorial2<br />
$ cd tutorial2<br />
$ lb config -p lxde<br />
$ echo iceweasel >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="709" href="#709" class="lnkocn">709</a></label>
  <p class="i0" id="o709">
    Our choice of LXDE for this example reflects our desire to provide a minimal  desktop environment, since the focus of the image is the single use we have  in mind, the web browser. We could go even further and provide a default  configuration for the web browser in  <tt>config/includes.chroot/etc/iceweasel/profile/</tt>, or additional support  packages for viewing various kinds of web content, but we leave this as an  exercise for the reader.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="710" href="#710" class="lnkocn">710</a></label>
  <p class="i0" id="o710">
    Build the image, again as superuser, keeping a log as in  <a href="#tutorial-1">Tutorial  1</a>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="711" href="#711" class="lnkocn">711</a></label>
  <p class="code" id="o711">
    # lb build 2>&1 | tee binary.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="712" href="#712" class="lnkocn">712</a></label>
  <p class="i0" id="o712">
    Again, verify the image is OK and test, as in  <a href="#tutorial-1">Tutorial 1</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="713" href="#713" class="lnkocn">713</a></label>
  <h5 class="norm" id="o713"><a name="713"></a>
    <a name="h16.4" ></a><a name="tutorial-3" ></a><a name="htutorial-3">16.4 Tutorial 3: A personalized image</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="714" href="#714" class="lnkocn">714</a></label>
  <p class="i0" id="o714">
    <b>Use case:</b> Create a project to build a personalized image, containing your favourite software to take with you on a USB stick wherever you go, and evolving in successive revisions as your needs and preferences change.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="715" href="#715" class="lnkocn">715</a></label>
  <p class="i0" id="o715">
    Since we will be changing our personalized image over a number of revisions,  and we want to track those changes, trying things experimentally and  possibly reverting them if things don't work out, we will keep our  configuration in the popular <tt>git</tt> version control system. We will also  use the best practice of autoconfiguration via <tt>auto</tt> scripts as described  in  <a href="#managing-a-configuration">Managing a configuration</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="716" href="#716" class="lnkocn">716</a></label>
  <h6 class="norm" id="o716"><a name="716"></a>
    <a name="16.4.1" ></a><a name="h16.4.1" ></a><a name="h16.4.1">16.4.1 First revision</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="717" href="#717" class="lnkocn">717</a></label>
  <p class="code" id="o717">
    $ mkdir -p tutorial3/auto<br />
$ cp /usr/share/live/build/examples/auto/* tutorial3/auto/<br />
$ cd tutorial3<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="718" href="#718" class="lnkocn">718</a></label>
  <p class="i0" id="o718">
    Edit <tt>auto/config</tt> to read as follows:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="719" href="#719" class="lnkocn">719</a></label>
  <p class="code" id="o719">
    #!/bin/sh<br /><br />
lb config noauto \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--architecture i386 \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--linux-flavours 686-pae \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--package-lists lxde \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"${@}"<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="720" href="#720" class="lnkocn">720</a></label>
  <p class="i0" id="o720">
    Now populate your local package list:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="721" href="#721" class="lnkocn">721</a></label>
  <p class="code" id="o721">
    $ echo "iceweasel xchat" >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="722" href="#722" class="lnkocn">722</a></label>
  <p class="i0" id="o722">
    First, <tt>--architecture i386</tt> ensures that on our <tt>amd64</tt> build system,  we build a 32-bit version suitable for use on most machines. Second, we use  <tt>--linux-flavours 686-pae</tt> because we don't anticipate using this image on  much older systems. Third, we've chosen the <tt>lxde</tt> package list to give us  a minimal desktop. And finally, we have added two initial favourite  packages: <tt>iceweasel</tt> and <tt>xchat</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="723" href="#723" class="lnkocn">723</a></label>
  <p class="i0" id="o723">
    Now, build the image:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="724" href="#724" class="lnkocn">724</a></label>
  <p class="code" id="o724">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="725" href="#725" class="lnkocn">725</a></label>
  <p class="i0" id="o725">
    Note that unlike in the first two tutorials, we no longer have to type  <tt>2>&1 | tee binary.log</tt> as that is now included in <tt>auto/build</tt>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="726" href="#726" class="lnkocn">726</a></label>
  <p class="i0" id="o726">
    Once you've tested the image (as in  <a href="#tutorial-1">Tutorial 1</a>)  and are  satisfied it works, it's time to initialize our <tt>git</tt> repository, adding  only the auto scripts we just created, and then make the first commit:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="727" href="#727" class="lnkocn">727</a></label>
  <p class="code" id="o727">
    $ git init<br />
$ git add auto<br />
$ git commit -a -m "Initial import."<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="728" href="#728" class="lnkocn">728</a></label>
  <h6 class="norm" id="o728"><a name="728"></a>
    <a name="16.4.2" ></a><a name="h16.4.2" ></a><a name="h16.4.2">16.4.2 Second revision</a>
  </h6>
</div>

<div class="substance">
  <label class="ocn"><a name="729" href="#729" class="lnkocn">729</a></label>
  <p class="i0" id="o729">
    In this revision, we're going to clean up from the first build, add the  <tt>vlc</tt> package to our configuration, rebuild, test and commit.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="730" href="#730" class="lnkocn">730</a></label>
  <p class="i0" id="o730">
    The <tt>lb clean</tt> command will clean up all generated files from the previous  build except for the cache, which saves having to re-download packages. This  ensures that the subsequent <tt>lb build</tt> will re-run all stages to  regenerate the files from our new configuration.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="731" href="#731" class="lnkocn">731</a></label>
  <p class="code" id="o731">
    # lb clean<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="732" href="#732" class="lnkocn">732</a></label>
  <p class="i0" id="o732">
    Now append the <tt>vlc</tt> package to our local package list in  <tt>config/package-lists/my.list.chroot</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="733" href="#733" class="lnkocn">733</a></label>
  <p class="code" id="o733">
    $ echo vlc >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="734" href="#734" class="lnkocn">734</a></label>
  <p class="i0" id="o734">
    Build again:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="735" href="#735" class="lnkocn">735</a></label>
  <p class="code" id="o735">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="736" href="#736" class="lnkocn">736</a></label>
  <p class="i0" id="o736">
    Test, and when you're satisfied, commit the next revision:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="737" href="#737" class="lnkocn">737</a></label>
  <p class="code" id="o737">
    $ git commit -a -m "Adding vlc media player."<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="738" href="#738" class="lnkocn">738</a></label>
  <p class="i0" id="o738">
    Of course, more complicated changes to the configuration are possible,  perhaps adding files in subdirectories of <tt>config/</tt>. When you commit new  revisions, just take care not to hand edit or commit the top-level files in  <tt>config</tt> containing <tt>LB_*</tt> variables, as these are build products, too,  and are always cleaned up by <tt>lb clean</tt> and re-created with <tt>lb config</tt>  via their respective <tt>auto</tt> scripts.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="739" href="#739" class="lnkocn">739</a></label>
  <p class="i0" id="o739">
    We've come to the end of our tutorial series. While many more kinds of  customization are possible, even just using the few features explored in  these simple examples, an almost infinite variety of different images can be  created. The remaining examples in this section cover several other use  cases drawn from the collected experiences of users of Debian Live.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="740" href="#740" class="lnkocn">740</a></label>
  <h5 class="norm" id="o740"><a name="740"></a>
    <a name="16.5" ></a><a name="h16.5" ></a><a name="h16.5">16.5 A VNC Kiosk Client</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="741" href="#741" class="lnkocn">741</a></label>
  <p class="i0" id="o741">
    <b>Use case:</b> Create an image with <i>live-build</i> to boot directly to a VNC server.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="742" href="#742" class="lnkocn">742</a></label>
  <p class="i0" id="o742">
    Make a build directory and create a skeletal configuration in it built  around the standard-x11 list, including <tt>gdm3</tt>, <tt>metacity</tt> and  <tt>xvnc4viewer</tt>, disabling recommends to make a minimal system:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="743" href="#743" class="lnkocn">743</a></label>
  <p class="code" id="o743">
    $ mkdir vnc_kiosk_client<br />
$ cd vnc_kiosk_client<br />
$ lb config -a i386 -k 686-pae -p standard-x11 \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--apt-recommends false<br />
$ echo "gdm3 metacity xvnc4viewer" >> config/package-lists/my.list.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="744" href="#744" class="lnkocn">744</a></label>
  <p class="i0" id="o744">
    Create the directory <tt>/etc/skel</tt> and put a custom <tt>.xsession</tt> in it for  the default user that will launch metacity and start xvncviewer, connecting  to port <tt>5901</tt> on a server at <tt>192.168.1.2</tt>:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="745" href="#745" class="lnkocn">745</a></label>
  <p class="code" id="o745">
    $ mkdir -p config/includes.chroot/etc/skel<br />
$ cat > config/includes.chroot/etc/skel/.xsession <<END<br />
#!/bin/sh<br /><br />
/usr/bin/metacity &<br />
/usr/bin/xvncviewer 192.168.1.2:1<br /><br />
exit<br />
END<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="746" href="#746" class="lnkocn">746</a></label>
  <p class="i0" id="o746">
    Build the image:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="747" href="#747" class="lnkocn">747</a></label>
  <p class="code" id="o747">
    # lb build<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="748" href="#748" class="lnkocn">748</a></label>
  <p class="i0" id="o748">
    Enjoy.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="749" href="#749" class="lnkocn">749</a></label>
  <h5 class="norm" id="o749"><a name="749"></a>
    <a name="16.6" ></a><a name="h16.6" ></a><a name="h16.6">16.6 A base image for a 128M USB key</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="750" href="#750" class="lnkocn">750</a></label>
  <p class="i0" id="o750">
    <b>Use case:</b> Create a standard image with some components removed in order to fit on a 128M USB key with space left over to use as you see fit.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="751" href="#751" class="lnkocn">751</a></label>
  <p class="i0" id="o751">
    When optimizing an image to fit a certain media size, you need to understand  the tradeoffs you are making between size and functionality. In this  example, we trim only so much as to make room for additional material within  a 128M media size, but without doing anything to destroy integrity of the  packages contained within, such as the purging of locale data via the  <tt>localepurge</tt> package, or other such "intrusive" optimizations. Of  particular note, you should not use <tt>--bootstrap-flavour minimal</tt> unless  you really know what you're doing, as omitting priority <tt>important</tt>  packages will most likely produce a broken live system.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="752" href="#752" class="lnkocn">752</a></label>
  <p class="code" id="o752">
    $ lb config -k 486 -p minimal --apt-indices false \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--memtest none --apt-recommends false --includes none<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="753" href="#753" class="lnkocn">753</a></label>
  <p class="i0" id="o753">
    Now, build the image in the usual way:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="754" href="#754" class="lnkocn">754</a></label>
  <p class="code" id="o754">
    # lb build 2>&1 | tee binary.log<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="755" href="#755" class="lnkocn">755</a></label>
  <p class="i0" id="o755">
    On the author's system at time of writing, the above configuration produced  a 78Mbyte image. This compares favourably with the 166Mbyte image produced  by the default configuration in  <a href="#tutorial-1">Tutorial 1</a>.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="756" href="#756" class="lnkocn">756</a></label>
  <p class="i0" id="o756">
    The biggest space-saver here, compared to building a standard image on an  <tt>i386</tt> architecture system, is to select only the <tt>486</tt> kernel flavour  instead of the default <tt>-k "486 686-pae"</tt>. Leaving off APT's indices with  <tt>--apt-indices false</tt> also saves a fair amount of space, the tradeoff  being that you need to <tt>apt-get update</tt> before using apt in the live  system. Choosing the <tt>minimal</tt> package list leaves out the large  <tt>locales</tt> package and associated utilities. Dropping recommended packages  with <tt>--apt-recommends false</tt> saves some additional space, at the expense  of omitting some packages you might otherwise expect to be there, such as  <tt>firmware-linux-free</tt> which may be needed to support certain hardware. The  remaining options shave off additional small amounts of space. It's up to  you to decide if the functionality that is sacrificed with each optimization  is worth the loss in functionality.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="757" href="#757" class="lnkocn">757</a></label>
  <h5 class="norm" id="o757"><a name="757"></a>
    <a name="16.7" ></a><a name="h16.7" ></a><a name="h16.7">16.7 A localized KDE desktop and installer</a>
  </h5>
</div>

<div class="substance">
  <label class="ocn"><a name="758" href="#758" class="lnkocn">758</a></label>
  <p class="i0" id="o758">
    <b>Use case:</b> Create a KDE desktop image, localized for Brazilian Portuguese and including an installer.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="759" href="#759" class="lnkocn">759</a></label>
  <p class="i0" id="o759">
    We want to make an iso-hybrid image for i386 architecture using our  preferred desktop, in this case KDE, containing all of the same packages  that would be installed by the standard Debian installer for KDE.
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="760" href="#760" class="lnkocn">760</a></label>
  <p class="i0" id="o760">
    Our initial problem is the discovery of the names of the appropriate  language tasks. Currently, <i>live-build</i> cannot help with this. While we might  get lucky and find this by trial-and-error, there is a tool, <tt>grep-dctrl</tt>,  which can be used to dig it out of the task descriptions in tasksel-data, so  to prepare, make sure you have both of those things:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="761" href="#761" class="lnkocn">761</a></label>
  <p class="code" id="o761">
    # apt-get install dctrl-tools tasksel-data<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="762" href="#762" class="lnkocn">762</a></label>
  <p class="i0" id="o762">
    Now we can search for the appropriate tasks, first with:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="763" href="#763" class="lnkocn">763</a></label>
  <p class="code" id="o763">
    $ grep-dctrl -FTest-lang pt_BR /usr/share/tasksel/descs/debian-tasks.desc -sTask<br />
Task: brazilian-portuguese<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="764" href="#764" class="lnkocn">764</a></label>
  <p class="i0" id="o764">
    By this command, we discover the task is called, plainly enough,  brazilian-portuguese. Now to find the related tasks:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="765" href="#765" class="lnkocn">765</a></label>
  <p class="code" id="o765">
    $ grep-dctrl -FEnhances brazilian-portuguese /usr/share/tasksel/descs/debian-tasks.desc -sTask<br />
Task: brazilian-portuguese-desktop<br />
Task: brazilian-portuguese-kde-desktop<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="766" href="#766" class="lnkocn">766</a></label>
  <p class="i0" id="o766">
    At boot time we will generate the pt_BR.UTF-8 locale and select the  pt-latin1 keyboard layout. We will also need to preseed our desktop choice,  "kde" so that tasksel will install the correct desktop task, as it differs  from the default (see  <a href="#desktop-and-language-tasks">Desktop and languages  tasks</a>).  Now let's put the pieces together:
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="767" href="#767" class="lnkocn">767</a></label>
  <p class="code" id="o767">
    $ mkdir live-pt_BR-kde<br />
$ cd live-pt_BR-kde<br />
$ lb config \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-a i386 \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-k 486 \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--bootappend-live "locales=pt_BR.UTF-8 keyboard-layouts=pt-latin1" \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;--debian-installer live<br />
$ echo kde-desktop brazilian-portuguese brazilian-portuguese-desktop \<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;brazilian-portuguese-kde-desktop >> config/task-lists/my.list.chroot<br />
$ echo debian-installer-launcher >> config/package-lists/my.list.chroot<br />
$ echo tasksel tasksel/desktop multiselect kde >> config/preseed/my.preseed.chroot<br /><br />
  </p>
</div>

<div class="substance">
  <label class="ocn"><a name="768" href="#768" class="lnkocn">768</a></label>
  <p class="i0" id="o768">
    Note that we have included the <tt>debian-installer-launcher</tt> package to  launch the installer from the live desktop, and have also specified the 486  flavour kernel, as it is currently necessary to make the installer and live  system kernels match for the launcher to work properly.
  </p>
</div>

<div class="substance">
  <label class=""><a name="">&nbsp;</a></label>
  <p class="norm" id="o">
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