/usr/share/pyshared/mic/imgcreate/live.py is in mic2 0.24.12-1.
This file is owned by root:root, with mode 0o644.
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# live.py : LiveImageCreator class for creating Live CD images
#
# Copyright 2007, Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
import os
import os.path
import glob
import shutil
import subprocess
import logging
import re
import time
from mic.imgcreate.errors import *
from mic.imgcreate.fs import *
from mic.imgcreate.creator import *
from mic.appcreate.partitionedfs import *
from mic.imgcreate.rpmmisc import *
class LiveImageCreatorBase(LoopImageCreator):
"""A base class for LiveCD image creators.
This class serves as a base class for the architecture-specific LiveCD
image creator subclass, LiveImageCreator.
LiveImageCreator creates a bootable ISO containing the system image,
bootloader, bootloader configuration, kernel and initramfs.
"""
def __init__(self, *args):
"""Initialise a LiveImageCreator instance.
This method takes the same arguments as ImageCreator.__init__().
"""
LoopImageCreator.__init__(self, *args)
self.skip_compression = False
"""Controls whether to use squashfs to compress the image."""
self.skip_minimize = False
"""Controls whether an image minimizing snapshot should be created.
This snapshot can be used when copying the system image from the ISO in
order to minimize the amount of data that needs to be copied; simply,
it makes it possible to create a version of the image's filesystem with
no spare space.
"""
self.actasconvertor = False
"""A flag which indicates i act as a convertor"""
if self.ks:
self._timeout = kickstart.get_timeout(self.ks, 10)
else:
self._timeout = 10
"""The bootloader timeout from kickstart."""
if self.ks:
self._default_kernel = kickstart.get_default_kernel(self.ks, "kernel")
else:
self._default_kernel = None
"""The default kernel type from kickstart."""
self.__isodir = None
self.__modules = ["=ata", "sym53c8xx", "aic7xxx", "=usb", "=firewire", "=mmc", "=pcmcia", "mptsas"]
if self.ks:
self.__modules.extend(kickstart.get_modules(self.ks))
self._dep_checks.extend(["isohybrid", "unsquashfs", "mksquashfs", "dd", "genisoimage"])
#
# Hooks for subclasses
#
def _configure_bootloader(self, isodir):
"""Create the architecture specific booloader configuration.
This is the hook where subclasses must create the booloader
configuration in order to allow a bootable ISO to be built.
isodir -- the directory where the contents of the ISO are to be staged
"""
raise CreatorError("Bootloader configuration is arch-specific, "
"but not implemented for this arch!")
def _get_menu_options(self):
"""Return a menu options string for syslinux configuration.
"""
r = kickstart.get_menu_args(self.ks)
return r
def _get_kernel_options(self):
"""Return a kernel options string for bootloader configuration.
This is the hook where subclasses may specify a set of kernel options
which should be included in the images bootloader configuration.
A sensible default implementation is provided.
"""
r = kickstart.get_kernel_args(self.ks)
if os.path.exists(self._instroot + "/usr/bin/rhgb") or \
os.path.exists(self._instroot + "/usr/bin/plymouth"):
r += " rhgb"
return r
def _get_mkisofs_options(self, isodir):
"""Return the architecture specific mkisosfs options.
This is the hook where subclasses may specify additional arguments to
mkisofs, e.g. to enable a bootable ISO to be built.
By default, an empty list is returned.
"""
return []
#
# Helpers for subclasses
#
def _has_checkisomd5(self):
"""Check whether checkisomd5 is available in the install root."""
def exists(instroot, path):
return os.path.exists(instroot + path)
if (exists(self._instroot, "/usr/lib/moblin-installer-runtime/checkisomd5") or
exists(self._instroot, "/usr/bin/checkisomd5")):
if (os.path.exists("/usr/bin/implantisomd5") or
os.path.exists("/usr/lib/anaconda-runtime/implantisomd5")):
return True
return False
def _uncompress_squashfs(self, squashfsimg, outdir):
"""Uncompress file system from squshfs image"""
unsquashfs = find_binary_path("unsquashfs")
args = [unsquashfs, "-d", outdir, squashfsimg ]
rc = subprocess.call(args)
if (rc != 0):
raise CreatorError("Failed to uncompress %s." % squashfsimg)
#
# Actual implementation
#
def _base_on(self, base_on):
"""Support Image Convertor"""
if self.actasconvertor:
if os.path.exists(base_on) and not os.path.isfile(base_on):
ddcmd = find_binary_path("dd")
args = [ ddcmd, "if=%s" % base_on, "of=%s" % self._image ]
print "dd %s -> %s" % (base_on, self._image)
rc = subprocess.call(args)
if rc != 0:
raise CreatorError("Failed to dd from %s to %s" % (base_on, self._image))
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
if os.path.isfile(base_on):
print "Copying file system..."
shutil.copyfile(base_on, self._image)
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
return
"""helper function to extract ext3 file system from a live CD ISO"""
isoloop = DiskMount(LoopbackDisk(base_on, 0), self._mkdtemp())
try:
isoloop.mount()
except MountError, e:
raise CreatorError("Failed to loopback mount '%s' : %s" %
(base_on, e))
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(isoloop.mountdir + "/squashfs.img"):
squashimg = isoloop.mountdir + "/squashfs.img"
else:
squashimg = isoloop.mountdir + "/LiveOS/squashfs.img"
tmpoutdir = self._mkdtemp()
# unsquashfs requires outdir mustn't exist
shutil.rmtree(tmpoutdir, ignore_errors = True)
self._uncompress_squashfs(squashimg, tmpoutdir)
try:
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(tmpoutdir + "/os.img"):
os_image = tmpoutdir + "/os.img"
else:
os_image = tmpoutdir + "/LiveOS/ext3fs.img"
if not os.path.exists(os_image):
raise CreatorError("'%s' is not a valid live CD ISO : neither "
"LiveOS/ext3fs.img nor os.img exist" %
base_on)
print "Copying file system..."
shutil.copyfile(os_image, self._image)
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
finally:
shutil.rmtree(tmpoutdir, ignore_errors = True)
isoloop.cleanup()
def _mount_instroot(self, base_on = None):
LoopImageCreator._mount_instroot(self, base_on)
self.__write_initrd_conf(self._instroot + "/etc/sysconfig/mkinitrd")
def _unmount_instroot(self):
try:
os.unlink(self._instroot + "/etc/sysconfig/mkinitrd")
except:
pass
LoopImageCreator._unmount_instroot(self)
def __ensure_isodir(self):
if self.__isodir is None:
self.__isodir = self._mkdtemp("iso-")
return self.__isodir
def _get_isodir(self):
return self.__ensure_isodir()
def _set_isodir(self, isodir = None):
self.__isodir = isodir
def _create_bootconfig(self):
"""Configure the image so that it's bootable."""
self._configure_bootloader(self.__ensure_isodir())
def _get_post_scripts_env(self, in_chroot):
env = LoopImageCreator._get_post_scripts_env(self, in_chroot)
if not in_chroot:
env["LIVE_ROOT"] = self.__ensure_isodir()
return env
def __write_initrd_conf(self, path):
content = ""
if not os.path.exists(os.path.dirname(path)):
makedirs(os.path.dirname(path))
f = open(path, "w")
content += 'LIVEOS="yes"\n'
content += 'PROBE="no"\n'
content += 'MODULES+="squashfs ext3 ext2 vfat msdos "\n'
content += 'MODULES+="sr_mod sd_mod ide-cd cdrom "\n'
for module in self.__modules:
if module == "=usb":
content += 'MODULES+="ehci_hcd uhci_hcd ohci_hcd "\n'
content += 'MODULES+="usb_storage usbhid "\n'
elif module == "=firewire":
content += 'MODULES+="firewire-sbp2 firewire-ohci "\n'
content += 'MODULES+="sbp2 ohci1394 ieee1394 "\n'
elif module == "=mmc":
content += 'MODULES+="mmc_block sdhci sdhci-pci "\n'
elif module == "=pcmcia":
content += 'MODULES+="pata_pcmcia "\n'
else:
content += 'MODULES+="' + module + ' "\n'
f.write(content)
f.close()
def __create_iso(self, isodir):
iso = self._outdir + "/" + self.name + ".iso"
genisoimage = find_binary_path("genisoimage")
args = [genisoimage,
"-J", "-r",
"-hide-rr-moved", "-hide-joliet-trans-tbl",
"-V", self.fslabel,
"-o", iso]
args.extend(self._get_mkisofs_options(isodir))
args.append(isodir)
if subprocess.call(args) != 0:
raise CreatorError("ISO creation failed!")
""" It should be ok still even if you haven't isohybrid """
isohybrid = None
try:
isohybrid = find_binary_path("isohybrid")
except:
pass
if isohybrid:
args = [isohybrid, "-partok", iso ]
if subprocess.call(args) != 0:
raise CreatorError("Hybrid ISO creation failed!")
self.__implant_md5sum(iso)
def __implant_md5sum(self, iso):
"""Implant an isomd5sum."""
if os.path.exists("/usr/bin/implantisomd5"):
implantisomd5 = "/usr/bin/implantisomd5"
elif os.path.exists("/usr/lib/anaconda-runtime/implantisomd5"):
implantisomd5 = "/usr/lib/anaconda-runtime/implantisomd5"
else:
logging.warn("isomd5sum not installed; not setting up mediacheck")
implantisomd5 = ""
return
subprocess.call([implantisomd5, iso], stdout=sys.stdout, stderr=sys.stderr)
def _stage_final_image(self):
try:
makedirs(self.__ensure_isodir() + "/LiveOS")
minimal_size = self._resparse()
if not self.skip_minimize:
create_image_minimizer(self.__isodir + "/LiveOS/osmin.img",
self._image, minimal_size)
if self.skip_compression:
shutil.move(self._image, self.__isodir + "/LiveOS/ext3fs.img")
else:
makedirs(os.path.join(os.path.dirname(self._image), "LiveOS"))
shutil.move(self._image,
os.path.join(os.path.dirname(self._image),
"LiveOS", "ext3fs.img"))
mksquashfs(os.path.dirname(self._image),
self.__isodir + "/LiveOS/squashfs.img")
self.__create_iso(self.__isodir)
finally:
shutil.rmtree(self.__isodir, ignore_errors = True)
self.__isodir = None
class x86LiveImageCreator(LiveImageCreatorBase):
"""ImageCreator for x86 machines"""
def _get_mkisofs_options(self, isodir):
return [ "-b", "isolinux/isolinux.bin",
"-c", "isolinux/boot.cat",
"-no-emul-boot", "-boot-info-table",
"-boot-load-size", "4" ]
def _get_required_packages(self):
return ["syslinux", "syslinux-extlinux"] + LiveImageCreatorBase._get_required_packages(self)
def _get_isolinux_stanzas(self, isodir):
return ""
def __find_syslinux_menu(self):
for menu in ["vesamenu.c32", "menu.c32"]:
if os.path.isfile(self._instroot + "/usr/share/syslinux/" + menu):
return menu
raise CreatorError("syslinux not installed : "
"no suitable /usr/share/syslinux/*menu.c32 found")
def __find_syslinux_mboot(self):
#
# We only need the mboot module if we have any xen hypervisors
#
if not glob.glob(self._instroot + "/boot/xen.gz*"):
return None
return "mboot.c32"
def __copy_syslinux_files(self, isodir, menu, mboot = None):
files = ["isolinux.bin", menu]
if mboot:
files += [mboot]
for f in files:
path = self._instroot + "/usr/share/syslinux/" + f
if not os.path.isfile(path):
raise CreatorError("syslinux not installed : "
"%s not found" % path)
shutil.copy(path, isodir + "/isolinux/")
def __copy_syslinux_background(self, isodest):
background_path = self._instroot + \
"/usr/lib/anaconda-runtime/syslinux-vesa-splash.jpg"
if not os.path.exists(background_path):
return False
shutil.copyfile(background_path, isodest)
return True
def __copy_kernel_and_initramfs(self, isodir, version, index):
bootdir = self._instroot + "/boot"
if self._alt_initrd_name:
src_initrd_path = os.path.join(bootdir, self._alt_initrd_name)
else:
src_initrd_path = os.path.join(bootdir, "initrd-" + version + ".img")
try:
shutil.copyfile(bootdir + "/vmlinuz-" + version,
isodir + "/isolinux/vmlinuz" + index)
shutil.copyfile(src_initrd_path,
isodir + "/isolinux/initrd" + index + ".img")
except:
raise CreatorError("Unable to copy valid kernels or initrds, please check the repo")
is_xen = False
if os.path.exists(bootdir + "/xen.gz-" + version[:-3]):
shutil.copyfile(bootdir + "/xen.gz-" + version[:-3],
isodir + "/isolinux/xen" + index + ".gz")
is_xen = True
return is_xen
def __is_default_kernel(self, kernel, kernels):
if len(kernels) == 1:
return True
if kernel == self._default_kernel:
return True
if kernel.startswith("kernel-") and kernel[7:] == self._default_kernel:
return True
return False
def __get_basic_syslinux_config(self, **args):
return """
default %(menu)s
timeout %(timeout)d
%(background)s
menu title Welcome to %(distroname)s!
menu color border 0 #ffffffff #00000000
menu color sel 7 #ffffffff #ff000000
menu color title 0 #ffffffff #00000000
menu color tabmsg 0 #ffffffff #00000000
menu color unsel 0 #ffffffff #00000000
menu color hotsel 0 #ff000000 #ffffffff
menu color hotkey 7 #ffffffff #ff000000
menu color timeout_msg 0 #ffffffff #00000000
menu color timeout 0 #ffffffff #00000000
menu color cmdline 0 #ffffffff #00000000
""" % args
def __get_image_stanza(self, is_xen, **args):
if not is_xen:
template = """label %(short)s
menu label %(long)s
kernel vmlinuz%(index)s
append initrd=initrd%(index)s.img root=CDLABEL=%(fslabel)s rootfstype=iso9660 %(liveargs)s %(extra)s
"""
else:
template = """label %(short)s
menu label %(long)s
kernel mboot.c32
append xen%(index)s.gz --- vmlinuz%(index)s root=CDLABEL=%(fslabel)s rootfstype=iso9660 %(liveargs)s %(extra)s --- initrd%(index)s.img
"""
return template % args
def __get_image_stanzas(self, isodir):
versions = []
kernels = self._get_kernel_versions()
for kernel in kernels:
for version in kernels[kernel]:
versions.append(version)
if not versions:
raise CreatorError("Unable to find valid kernels, please check the repo")
kernel_options = self._get_kernel_options()
""" menu can be customized highly, the format is
short_name1:long_name1:extra_options1;short_name2:long_name2:extra_options2
for example: autoinst:Installation only:systemd.unit=installer-graphical.service
but in order to keep compatible with old format, these are still ok:
liveinst autoinst
liveinst;autoinst
liveinst::;autoinst::
"""
oldmenus = {"basic":{"short":"basic", "long":"Installation Only (Text based)", "extra":"basic nosplash 4"},
"liveinst":{"short":"liveinst", "long":"Installation Only", "extra":"liveinst nosplash 4"},
"autoinst":{"short":"autoinst", "long":"Autoinstall (Deletes all existing content)", "extra":"autoinst nosplash 4"},
"netinst":{"short":"netinst", "long":"Network Installation", "extra":"netinst 4"},
"verify":{"short":"check", "long":"Verify and", "extra":"check"}
}
menu_options = self._get_menu_options()
menus = menu_options.split(";")
for i in range(len(menus)):
menus[i] = menus[i].split(":")
if len(menus) == 1 and len(menus[0]) == 1:
""" Keep compatible with the old usage way """
menus = menu_options.split()
for i in range(len(menus)):
menus[i] = [menus[i]]
cfg = ""
default_version = None
default_index = None
index = "0"
netinst = None
for version in versions:
is_xen = self.__copy_kernel_and_initramfs(isodir, version, index)
default = self.__is_default_kernel(kernel, kernels)
if default:
long = "Boot %s" % self.distro_name
elif kernel.startswith("kernel-"):
long = "Boot %s(%s)" % (self.name, kernel[7:])
else:
long = "Boot %s(%s)" % (self.name, kernel)
oldmenus["verify"]["long"] = "%s %s" % (oldmenus["verify"]["long"], long)
cfg += self.__get_image_stanza(is_xen,
fslabel = self.fslabel,
liveargs = kernel_options,
long = long,
short = "linux" + index,
extra = "",
index = index)
if default:
cfg += "menu default\n"
default_version = version
default_index = index
for menu in menus:
if not menu[0]:
continue
short = menu[0] + index
if len(menu) >= 2:
long = menu[1]
else:
if menu[0] in oldmenus.keys():
if menu[0] == "verify" and not self._has_checkisomd5():
continue
if menu[0] == "netinst":
netinst = oldmenus[menu[0]]
continue
long = oldmenus[menu[0]]["long"]
extra = oldmenus[menu[0]]["extra"]
else:
long = short.upper() + " X" + index
extra = ""
if len(menu) >= 3:
extra = menu[2]
cfg += self.__get_image_stanza(is_xen,
fslabel = self.fslabel,
liveargs = kernel_options,
long = long,
short = short,
extra = extra,
index = index)
index = str(int(index) + 1)
if not default_version:
default_version = versions[0]
if not default_index:
default_index = "0"
if netinst:
cfg += self.__get_image_stanza(is_xen,
fslabel = self.fslabel,
liveargs = kernel_options,
long = netinst["long"],
short = netinst["short"],
extra = netinst["extra"],
index = default_index)
return cfg
def __get_memtest_stanza(self, isodir):
memtest = glob.glob(self._instroot + "/boot/memtest86*")
if not memtest:
return ""
shutil.copyfile(memtest[0], isodir + "/isolinux/memtest")
return """label memtest
menu label Memory Test
kernel memtest
"""
def __get_local_stanza(self, isodir):
return """label local
menu label Boot from local drive
localboot 0xffff
"""
def _configure_syslinux_bootloader(self, isodir):
"""configure the boot loader"""
makedirs(isodir + "/isolinux")
menu = self.__find_syslinux_menu()
self.__copy_syslinux_files(isodir, menu,
self.__find_syslinux_mboot())
background = ""
if self.__copy_syslinux_background(isodir + "/isolinux/splash.jpg"):
background = "menu background splash.jpg"
cfg = self.__get_basic_syslinux_config(menu = menu,
background = background,
name = self.name,
timeout = self._timeout * 10,
distroname = self.distro_name)
cfg += self.__get_image_stanzas(isodir)
cfg += self.__get_memtest_stanza(isodir)
cfg += self.__get_local_stanza(isodir)
cfg += self._get_isolinux_stanzas(isodir)
cfgf = open(isodir + "/isolinux/isolinux.cfg", "w")
cfgf.write(cfg)
cfgf.close()
def __copy_efi_files(self, isodir):
if not os.path.exists(self._instroot + "/boot/efi/EFI/redhat/grub.efi"):
return False
shutil.copy(self._instroot + "/boot/efi/EFI/redhat/grub.efi",
isodir + "/EFI/boot/grub.efi")
shutil.copy(self._instroot + "/boot/grub/splash.xpm.gz",
isodir + "/EFI/boot/splash.xpm.gz")
return True
def __get_basic_efi_config(self, **args):
return """
default=0
splashimage=/EFI/boot/splash.xpm.gz
timeout %(timeout)d
hiddenmenu
""" %args
def __get_efi_image_stanza(self, **args):
return """title %(long)s
kernel /EFI/boot/vmlinuz%(index)s root=CDLABEL=%(fslabel)s rootfstype=iso9660 %(liveargs)s %(extra)s
initrd /EFI/boot/initrd%(index)s.img
""" %args
def __get_efi_image_stanzas(self, isodir, name):
# FIXME: this only supports one kernel right now...
kernel_options = self._get_kernel_options()
checkisomd5 = self._has_checkisomd5()
cfg = ""
for index in range(0, 9):
# we don't support xen kernels
if os.path.exists("%s/EFI/boot/xen%d.gz" %(isodir, index)):
continue
cfg += self.__get_efi_image_stanza(fslabel = self.fslabel,
liveargs = kernel_options,
long = name,
extra = "", index = index)
if checkisomd5:
cfg += self.__get_efi_image_stanza(fslabel = self.fslabel,
liveargs = kernel_options,
long = "Verify and Boot " + name,
extra = "check",
index = index)
break
return cfg
def _configure_efi_bootloader(self, isodir):
"""Set up the configuration for an EFI bootloader"""
makedirs(isodir + "/EFI/boot")
if not self.__copy_efi_files(isodir):
shutil.rmtree(isodir + "/EFI")
return
for f in os.listdir(isodir + "/isolinux"):
os.link("%s/isolinux/%s" %(isodir, f),
"%s/EFI/boot/%s" %(isodir, f))
cfg = self.__get_basic_efi_config(name = self.name,
timeout = self._timeout)
cfg += self.__get_efi_image_stanzas(isodir, self.name)
cfgf = open(isodir + "/EFI/boot/grub.conf", "w")
cfgf.write(cfg)
cfgf.close()
# first gen mactel machines get the bootloader name wrong apparently
if getBaseArch() == "i386":
os.link(isodir + "/EFI/boot/grub.efi", isodir + "/EFI/boot/boot.efi")
os.link(isodir + "/EFI/boot/grub.conf", isodir + "/EFI/boot/boot.conf")
# for most things, we want them named boot$efiarch
efiarch = {"i386": "ia32", "x86_64": "x64"}
efiname = efiarch[getBaseArch()]
os.rename(isodir + "/EFI/boot/grub.efi", isodir + "/EFI/boot/boot%s.efi" %(efiname,))
os.link(isodir + "/EFI/boot/grub.conf", isodir + "/EFI/boot/boot%s.conf" %(efiname,))
def _configure_bootloader(self, isodir):
self._configure_syslinux_bootloader(isodir)
self._configure_efi_bootloader(isodir)
class ppcLiveImageCreator(LiveImageCreatorBase):
def _get_mkisofs_options(self, isodir):
return [ "-hfs", "-nodesktop", "-part"
"-map", isodir + "/ppc/mapping",
"-hfs-bless", isodir + "/ppc/mac",
"-hfs-volid", self.fslabel ]
def _get_required_packages(self):
return ["yaboot"] + \
LiveImageCreatorBase._get_required_packages(self)
def _get_excluded_packages(self):
# kind of hacky, but exclude memtest86+ on ppc so it can stay in cfg
return ["memtest86+"] + \
LiveImageCreatorBase._get_excluded_packages(self)
def __copy_boot_file(self, destdir, file):
for dir in ["/usr/share/ppc64-utils",
"/usr/lib/moblin-installer-runtime/boot"]:
path = self._instroot + dir + "/" + file
if not os.path.exists(path):
continue
makedirs(destdir)
shutil.copy(path, destdir)
return
raise CreatorError("Unable to find boot file " + file)
def __kernel_bits(self, kernel):
testpath = (self._instroot + "/lib/modules/" +
kernel + "/kernel/arch/powerpc/platforms")
if not os.path.exists(testpath):
return { "32" : True, "64" : False }
else:
return { "32" : False, "64" : True }
def __copy_kernel_and_initramfs(self, destdir, version):
bootdir = self._instroot + "/boot"
makedirs(destdir)
shutil.copyfile(bootdir + "/vmlinuz-" + version,
destdir + "/vmlinuz")
shutil.copyfile(bootdir + "/initrd-" + version + ".img",
destdir + "/initrd.img")
def __get_basic_yaboot_config(self, **args):
return """
init-message = "Welcome to %(distroname)s!"
timeout=%(timeout)d
""" % args
def __get_image_stanza(self, **args):
return """
image=/ppc/ppc%(bit)s/vmlinuz
label=%(short)s
initrd=/ppc/ppc%(bit)s/initrd.img
read-only
append="root=CDLABEL=%(fslabel)s rootfstype=iso9660 %(liveargs)s %(extra)s"
""" % args
def __write_yaboot_config(isodir, bit):
cfg = self.__get_basic_yaboot_config(name = self.name,
timeout = self._timeout * 100,
distroname = self.distro_name)
kernel_options = self._get_kernel_options()
cfg += self.__get_image_stanza(fslabel = self.fslabel,
short = "linux",
long = "Run from image",
extra = "",
bit = bit,
liveargs = kernel_options)
if self._has_checkisomd5():
cfg += self.__get_image_stanza(fslabel = self.fslabel,
short = "check",
long = "Verify and run from image",
extra = "check",
bit = bit,
liveargs = kernel_options)
f = open(isodir + "/ppc/ppc" + bit + "/yaboot.conf", "w")
f.write(cfg)
f.close()
def __write_not_supported(isodir, bit):
makedirs(isodir + "/ppc/ppc" + bit)
message = "Sorry, this LiveCD does not support your hardware"
f = open(isodir + "/ppc/ppc" + bit + "/yaboot.conf", "w")
f.write('init-message = "' + message + '"')
f.close()
def __write_dualbits_yaboot_config(isodir, **args):
cfg = """
init-message = "\nWelcome to %(name)s!\nUse 'linux32' for 32-bit kernel.\n\n"
timeout=%(timeout)d
default=linux
image=/ppc/ppc64/vmlinuz
label=linux64
alias=linux
initrd=/ppc/ppc64/initrd.img
read-only
image=/ppc/ppc32/vmlinuz
label=linux32
initrd=/ppc/ppc32/initrd.img
read-only
""" % args
f = open(isodir + "/etc/yaboot.conf", "w")
f.write(cfg)
f.close()
def _configure_bootloader(self, isodir):
"""configure the boot loader"""
havekernel = { 32: False, 64: False }
self.__copy_boot_file("mapping", isodir + "/ppc")
self.__copy_boot_file("bootinfo.txt", isodir + "/ppc")
self.__copy_boot_file("ofboot.b", isodir + "/ppc/mac")
shutil.copyfile(self._instroot + "/usr/lib/yaboot/yaboot",
isodir + "/ppc/mac/yaboot")
makedirs(isodir + "/ppc/chrp")
shutil.copyfile(self._instroot + "/usr/lib/yaboot/yaboot",
isodir + "/ppc/chrp/yaboot")
subprocess.call(["/usr/sbin/addnote", isodir + "/ppc/chrp/yaboot"])
#
# FIXME: ppc should support multiple kernels too...
#
kernel = self._get_kernel_versions().values()[0][0]
kernel_bits = self.__kernel_bits(kernel)
for (bit, present) in kernel_bits.items():
if not present:
self.__write_not_supported(isodir, bit)
continue
self.__copy_kernel_and_initramfs(isodir + "/ppc/ppc" + bit, kernel)
self.__write_yaboot_config(isodir, bit)
makedirs(isodir + "/etc")
if kernel_bits["32"] and not kernel_bits["64"]:
shutil.copyfile(isodir + "/ppc/ppc32/yaboot.conf",
isodir + "/etc/yaboot.conf")
elif kernel_bits["64"] and not kernel_bits["32"]:
shutil.copyfile(isodir + "/ppc/ppc64/yaboot.conf",
isodir + "/etc/yaboot.conf")
else:
self.__write_dualbits_yaboot_config(isodir,
name = self.name,
timeout = self._timeout * 100)
#
# FIXME: build 'netboot' images with kernel+initrd, like mk-images.ppc
#
class ppc64LiveImageCreator(ppcLiveImageCreator):
def _get_excluded_packages(self):
# FIXME:
# while kernel.ppc and kernel.ppc64 co-exist,
# we can't have both
return ["kernel.ppc"] + \
ppcLiveImageCreator._get_excluded_packages(self)
arch = getBaseArch()
if arch in ("i386", "x86_64"):
LiveImageCreator = x86LiveImageCreator
elif arch in ("ppc",):
LiveImageCreator = ppcLiveImageCreator
elif arch in ("ppc64",):
LiveImageCreator = ppc64LiveImageCreator
elif arch.startswith("arm"):
LiveImageCreator = LiveImageCreatorBase
else:
raise CreatorError("Architecture not supported!")
class LiveUSBImageCreator(LiveImageCreator):
def __init__(self, *args):
LiveImageCreator.__init__(self, *args)
self._dep_checks.extend(["kpartx", "parted"])
# remove dependency of genisoimage in parent class
if "genisoimage" in self._dep_checks:
self._dep_checks.remove("genisoimage")
def _create_usbimg(self, isodir):
overlaysizemb = self.overlaysizemb
skipcompress = self.skip_compression
fstype = self.fstype
homesizemb=0
swapsizemb=0
homefile="home.img"
plussize=128
kernelargs=None
if overlaysizemb > 2047 and fstype == "vfat":
raise CreatorError("Can't have an overlay of 2048MB or greater on VFAT")
if homesizemb > 2047 and fstype == "vfat":
raise CreatorError("Can't have an home overlay of 2048MB or greater on VFAT")
if swapsizemb > 2047 and fstype == "vfat":
raise CreatorError("Can't have an swap overlay of 2048MB or greater on VFAT")
livesize = get_file_size(isodir + "/LiveOS")
mountcmd = find_binary_path("mount")
umountcmd = find_binary_path("umount")
ddcmd = find_binary_path("dd")
if skipcompress:
tmpmnt = self._mkdtemp("squashfs-mnt")
rc = subprocess.call([mountcmd, "-o", "loop", isodir + "/LiveOS/squashfs.img", tmpmnt]);
if rc:
raise CreatorError("Can't mount %s" % (isodir + "/LiveOS/squashfs.img"))
livesize = get_file_size(tmpmnt + "/LiveOS/ext3fs.img")
rc = subprocess.call([umountcmd, tmpmnt]);
if rc:
raise CreatorError("Can't umount %s" % (tmpmnt))
usbimgsize = (overlaysizemb + homesizemb + swapsizemb + livesize + plussize) * 1024L * 1024L
disk = SparseLoopbackDisk("%s/%s.usbimg" % (self._outdir, self.name), usbimgsize)
usbmnt = self._mkdtemp("usb-mnt")
usbloop = PartitionedMount({'/dev/sdb':disk}, usbmnt)
usbloop.add_partition(usbimgsize/1024/1024, "/dev/sdb", "/", fstype, boot=True)
try:
usbloop.mount()
except MountError, e:
raise CreatorError("Failed mount disks : %s" % e)
try:
makedirs(usbmnt + "/LiveOS")
if skipcompress:
if os.path.exists(isodir + "/LiveOS/squashfs.img"):
rc = subprocess.call([mountcmd, "-o", "loop", isodir + "/LiveOS/squashfs.img", tmpmnt]);
if rc:
raise CreatorError("Can't mount %s" % (isodir + "/LiveOS/squashfs.img"))
shutil.copyfile(tmpmnt + "/LiveOS/ext3fs.img", usbmnt + "/LiveOS/ext3fs.img")
rc = subprocess.call([umountcmd, tmpmnt]);
if rc:
raise CreatorError("Can't umount %s" % (tmpmnt))
else:
shutil.copyfile(isodir + "/LiveOS/ext3fs.img", usbmnt + "/LiveOS/ext3fs.img")
else:
if os.path.exists(isodir + "/LiveOS/squashfs.img"):
shutil.copyfile(isodir + "/LiveOS/squashfs.img", usbmnt + "/LiveOS/squashfs.img")
else:
mksquashfs(os.path.dirname(self._image), usbmnt + "/LiveOS/squashfs.img")
if os.path.exists(isodir + "/LiveOS/osmin.img"):
shutil.copyfile(isodir + "/LiveOS/osmin.img", usbmnt + "/LiveOS/osmin.img")
if fstype == "vfat" or fstype == "msdos":
uuid = usbloop.partitions[0]['mount'].uuid
label = usbloop.partitions[0]['mount'].fslabel
usblabel = "UUID=%s-%s" % (uuid[0:4], uuid[4:8])
overlaysuffix = "-%s-%s-%s" % (label, uuid[0:4], uuid[4:8])
else:
diskmount = usbloop.partitions[0]['mount']
usblabel = "UUID=%s" % diskmount.uuid
overlaysuffix = "-%s-%s" % (diskmount.fslabel, diskmount.uuid)
copycmd = find_binary_path("cp")
args = [copycmd, "-Rf", isodir + "/isolinux", usbmnt + "/syslinux"]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't copy isolinux directory %s" % (isodir + "/isolinux/*"))
if os.path.isfile("/usr/share/syslinux/isolinux.bin"):
syslinux_path = "/usr/share/syslinux"
elif os.path.isfile("/usr/lib/syslinux/isolinux.bin"):
syslinux_path = "/usr/lib/syslinux"
else:
raise CreatorError("syslinux not installed : "
"cannot find syslinux installation path")
for f in ("isolinux.bin", "vesamenu.c32"):
path = os.path.join(syslinux_path, f)
if os.path.isfile(path):
args = [copycmd, path, usbmnt + "/syslinux/"]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't copy syslinux file %s" % (path))
else:
raise CreatorError("syslinux not installed : "
"syslinux file %s not found" % path)
fd = open(isodir + "/isolinux/isolinux.cfg", "r")
text = fd.read()
fd.close()
pattern = re.compile('CDLABEL=[^ ]*')
text = pattern.sub(usblabel, text)
pattern = re.compile('rootfstype=[^ ]*')
text = pattern.sub("rootfstype=" + fstype, text)
if kernelargs:
text = text.replace("liveimg", "liveimg " + kernelargs)
if overlaysizemb > 0:
print "Initializing persistent overlay file"
overfile = "overlay" + overlaysuffix
if fstype == "vfat":
args = [ddcmd, "if=/dev/zero", "of=" + usbmnt + "/LiveOS/" + overfile, "count=%d" % overlaysizemb, "bs=1M"]
else:
args = [ddcmd, "if=/dev/null", "of=" + usbmnt + "/LiveOS/" + overfile, "count=1", "bs=1M", "seek=%d" % overlaysizemb]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't create overlay file")
text = text.replace("liveimg", "liveimg overlay=" + usblabel)
text = text.replace(" ro ", " rw ")
if swapsizemb > 0:
print "Initializing swap file"
swapfile = usbmnt + "/LiveOS/" + "swap.img"
args = [ddcmd, "if=/dev/zero", "of=" + swapfile, "count=%d" % swapsizemb, "bs=1M"]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't create swap file")
args = ["mkswap", "-f", swapfile]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't mkswap on swap file")
if homesizemb > 0:
print "Initializing persistent /home"
homefile = usbmnt + "/LiveOS/" + homefile
if fstype == "vfat":
args = [ddcmd, "if=/dev/zero", "of=" + homefile, "count=%d" % homesizemb, "bs=1M"]
else:
args = [ddcmd, "if=/dev/null", "of=" + homefile, "count=1", "bs=1M", "seek=%d" % homesizemb]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't create home file")
mkfscmd = find_binary_path("/sbin/mkfs." + fstype)
if fstype == "ext2" or fstype == "ext3":
args = [mkfscmd, "-F", "-j", homefile]
else:
args = [mkfscmd, homefile]
rc = subprocess.call(args, stdout=sys.stdout, stderr=sys.stderr)
if rc:
raise CreatorError("Can't mke2fs home file")
if fstype == "ext2" or fstype == "ext3":
tune2fs = find_binary_path("tune2fs")
args = [tune2fs, "-c0", "-i0", "-ouser_xattr,acl", homefile]
rc = subprocess.call(args, stdout=sys.stdout, stderr=sys.stderr)
if rc:
raise CreatorError("Can't tune2fs home file")
if fstype == "vfat" or fstype == "msdos":
syslinuxcmd = find_binary_path("syslinux")
syslinuxcfg = usbmnt + "/syslinux/syslinux.cfg"
args = [syslinuxcmd, "-d", "syslinux", usbloop.partitions[0]["device"]]
elif fstype == "ext2" or fstype == "ext3":
extlinuxcmd = find_binary_path("extlinux")
syslinuxcfg = usbmnt + "/syslinux/extlinux.conf"
args = [extlinuxcmd, "-i", usbmnt + "/syslinux"]
else:
raise CreatorError("Invalid file system type: %s" % (fstype))
os.unlink(usbmnt + "/syslinux/isolinux.cfg")
fd = open(syslinuxcfg, "w")
fd.write(text)
fd.close()
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't install boot loader.")
finally:
usbloop.unmount()
usbloop.cleanup()
""" Need to do this after image is unmounted and device mapper is closed """
print "set MBR"
mbrfile = "/usr/lib/syslinux/mbr.bin"
if not os.path.exists(mbrfile):
mbrfile = "/usr/share/syslinux/mbr.bin"
if not os.path.exists(mbrfile):
raise CreatorError("mbr.bin file didn't exist.")
mbrsize = os.path.getsize(mbrfile)
outimg = "%s/%s.usbimg" % (self._outdir, self.name)
args = [ddcmd, "if=" + mbrfile, "of=" + outimg, "seek=0", "conv=notrunc", "bs=1", "count=%d" % (mbrsize)]
rc = subprocess.call(args)
if rc:
raise CreatorError("Can't set MBR.")
def _stage_final_image(self):
try:
isodir = self._get_isodir()
makedirs(isodir + "/LiveOS")
minimal_size = self._resparse()
if not self.skip_minimize:
create_image_minimizer(isodir + "/LiveOS/osmin.img",
self._image, minimal_size)
if self.skip_compression:
shutil.move(self._image, isodir + "/LiveOS/ext3fs.img")
else:
makedirs(os.path.join(os.path.dirname(self._image), "LiveOS"))
shutil.move(self._image,
os.path.join(os.path.dirname(self._image),
"LiveOS", "ext3fs.img"))
mksquashfs(os.path.dirname(self._image),
isodir + "/LiveOS/squashfs.img")
self._create_usbimg(isodir)
finally:
shutil.rmtree(isodir, ignore_errors = True)
self._set_isodir(None)
def _base_on(self, base_on):
"""Support Image Convertor"""
if self.actasconvertor:
if os.path.exists(base_on) and not os.path.isfile(base_on):
ddcmd = find_binary_path("dd")
args = [ ddcmd, "if=%s" % base_on, "of=%s" % self._image ]
print "dd %s -> %s" % (base_on, self._image)
rc = subprocess.call(args)
if rc != 0:
raise CreatorError("Failed to dd from %s to %s" % (base_on, self._image))
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
if os.path.isfile(base_on):
print "Copying file system..."
shutil.copyfile(base_on, self._image)
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
return
"""helper function to extract ext3 file system from a live usb image"""
usbimgsize = get_file_size(base_on) * 1024L * 1024L
disk = SparseLoopbackDisk(base_on, usbimgsize)
usbimgmnt = self._mkdtemp("usbimgmnt-")
usbloop = PartitionedMount({'/dev/sdb':disk}, usbimgmnt, skipformat = True)
usbimg_fstype = "vfat"
usbloop.add_partition(usbimgsize/1024/1024, "/dev/sdb", "/", usbimg_fstype, boot=False)
try:
usbloop.mount()
except MountError, e:
usbloop.cleanup()
raise CreatorError("Failed to loopback mount '%s' : %s" %
(base_on, e))
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(usbimgmnt + "/squashfs.img"):
squashimg = usbimgmnt + "/squashfs.img"
else:
squashimg = usbimgmnt + "/LiveOS/squashfs.img"
tmpoutdir = self._mkdtemp()
# unsquashfs requires outdir mustn't exist
shutil.rmtree(tmpoutdir, ignore_errors = True)
self._uncompress_squashfs(squashimg, tmpoutdir)
try:
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(tmpoutdir + "/os.img"):
os_image = tmpoutdir + "/os.img"
else:
os_image = tmpoutdir + "/LiveOS/ext3fs.img"
if not os.path.exists(os_image):
raise CreatorError("'%s' is not a valid live CD ISO : neither "
"LiveOS/ext3fs.img nor os.img exist" %
base_on)
print "Copying file system..."
shutil.copyfile(os_image, self._image)
self._set_image_size(get_file_size(self._image) * 1024L * 1024L)
finally:
shutil.rmtree(tmpoutdir, ignore_errors = True)
usbloop.cleanup()
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