clonezilla 3.21.13-1 / usr / sbin / drbl-ocs

#!/bin/bash
#
# License: GPL 
# Original author: Blake, Kuo-Lien Huang
# Description:
#  2003/04/11 the first version, only work on /dev/hda1 & PXE
#  2003/06/01 disk to disk mode & etherboot support 
#             (the etherboot lzdsk images are located in
#              /tftpboot/etherboot-5.0.7 after DRBLCD installed)
#  2003/07/18 `checkInodeForDevice`
#
# Author: Steven Shiau <steven _at_ nchc org tw>
# 2003/07/21 the first version for Redhat, modified from Blake's version,
# only work on /dev/hda1 & PXE
# 2004/02/04 add the multicast function
# 2005/01/21 add code to save/restore some partitions (not entire disk).
# 2005/11/06 Many thanks to Christian Treczoks for providing "dd skip=1" method
# 2006/05/06 Remove save & restore hda1, since we can use save & restore partitions.
# 2006/12/07 Rewrite drbl-ocs to drbl-ocs + ocs-sr + ocs-functions.

# input parameters:
# startdisk/startparts IMAGE-NAME DEVICES

# Notes:
# task_restorexxx/savexxx function will always use $ocsroot (/home/partimag) as mount point to do the save/restore, so it might overwrite the /home/partimag by mounting $ocsroot from server:/home2 (for example).
# The mount action is done in function task_preprocessing

ocs_file="$0"
ocs=`basename $ocs_file`
ocs_myself_id="$$"
ocs_myself_ppid="$(LC_ALL=C ps --pid "$ocs_myself_id" -o ppid=)"
# log file for sfdisk when restoring
# RESTORE_SFDISK_LOG is loaded from drbl.conf

#
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"

. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
. /etc/drbl/drbl-ocs.conf
. $DRBL_SCRIPT_PATH/sbin/ocs-functions

# Fedora Core 1 seems to use dumb for rc1, we have to force it use linux.
# otherwise setterm will complain.
[ -z "$TERM" -o "$TERM" = "dumb" ] && TERM="linux"
echo "Setting the TERM as $TERM"
export TERM="$TERM"

#
check_if_root

#
USAGE() {
    echo "Usage:"
    echo "To start clonezilla in server:"
    echo "$ocs [OPTION] {startdisk|startparts} {save|restore|multicast_restore}"
    echo " startdisk   operate on all partitions of the disk"
    echo " startparts  operate on the chosen partitions"
    echo
    echo " Options for saving:"
    USAGE_common_save
    echo " -i, --image-size SIZE    Set the split image file volume size SIZE (MB)."
    USAGE_reserved_word_for_save
    echo 
    echo " Options for restoring:"
    USAGE_common_restore
    echo " --time-to-wait TIME  Even when the necessary amount of clients do have connected, still wait until TIME seconds since first client connection have passed"
    echo " --clients-to-wait NUMBER  Automatically start as soon as a minimal number of clients NUMBER have connected"
    echo " -brdcst, --broadcast  Use Ethernet broadcast, rather than multicast in udpcast. Useful if you have Ethernet cards or switch which don't support multicast."
    echo " -sc0, --skip-check-restorable-on-srv  Skip checking image if restorable or not on Clonezilla server before restoring. By default it will be checked before restoring."
    USAGE_reserved_word_for_restore
    echo
    echo " General options:"
    USAGE_common_general
    dialog_like_prog_help_prompt
    echo " -h, --hosts     IP_LIST  Instead of all DRBL clients, assign the clients by IP address, like: -h \"192.168.0.1 192.168.0.2\" NOTE!!! You must put \" \" before and after the IP_LIST!"
    echo " -s, --skip-hw-detect     Skip the hardware detection (kudzu, harddrake or discover)"
    echo " -n, --no-nfs-restart     Do not to restart nfs when start or stop $ocs (This is default)"
    echo " -f, --nfs-restart        Restart nfs when start or stop $ocs (Default is to restart nfs)"
    echo " --mcast-iface  PORT      Specify the multicast seed ethernet port PORT (eth0, eth1, eth2...). Suppose clonezilla will try to find that for you, but in some case, you might want to specify that."
    echo " -x, --full-duplex         Use full-duplex network with udpcast in multicast mode (faster, but does not work with network hub, only works in switch.)."
    echo
    echo "Example:"
    echo "To start clonezilla in server (Both server and clients all will join):"
    echo "Prepare the clonezilla server, let client to save partitions hda1 and hda2 as image name 2006-12-05-22-img, with lzop compression, prompt language English. "
    echo "  $ocs" '-b -q -z3 -l en startparts save 2006-12-05-22-img "hda1 hda2"'
    echo
    echo "Prepare the clonezilla server, let client to restore hda1 and hda2 fromimage 2006-12-03-10-img to client local harddrive, with lzop compression, prompt language English, and grub-install will be run after cloning."
    echo "  $ocs -b -g auto -x -l en startparts restore 2006-12-03-10-img \"hda1 hda2\""
    echo

    echo "To stop clonezilla:"
    echo "  $ocs stop"
    echo
} # end of USAGE
#
prepare_pxecfg_for_pxe_ocs_live_if_required() {
  if [ "$diskless_client_os" = "clonezilla-live" ]; then
    # Check if Clonezilla live exists...
    if [ -z "$(ls $pxecfg_pd/Clonezilla-live-vmlinuz* 2>/dev/null)" -o \
         -z "$(ls $pxecfg_pd/Clonezilla-live-initrd*.img 2>/dev/null)" ] || \
       [ ! -e "$pxecfg_pd/Clonezilla-live-filesystem.squashfs" -a \
         ! -e "$drbl_common_root/clonezilla-live/live/filesystem.squashfs" ]; then
      [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
      echo "Clonezilla live related files (Clonezilla-live-vmlinuz*, Clonezilla-live-initrd*.img, and Clonezilla-live-filesystem.squashfs) NOT found in $pxecfg_pd!"
      [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
      echo "You have to download Clonezilla live iso file (1.2.5-2 or later is required), then run 'drbl-sl -i ISO_FILE'. E.g. '$DRBL_SCRIPT_PATH/sbin/drbl-sl -i clonezilla-live-1.2.5-2-486.iso'"
      echo "$msg_program_stop!"
      exit 1
    fi
    echo "Modifying keyboard-layouts, locales, ocs_daemonon, and ocs_prerun in $PXE_CONF if necessary..."
    # Keymap should be the same with server. If not found use that assigned in drbl-ocs.conf.
    if [ -e /etc/default/keyboard ]; then
      # Debian based system. The content of vconsole.conf is like:
      # ================
      # XKBMODEL="pc105"
      # XKBLAYOUT="us"
      # XKBVARIANT=""
      # XKBOPTIONS=""
      # ================
      . /etc/default/keyboard
      client_kb_layout="$XKBLAYOUT"
      client_kb_model="$XKBMODEL"
      client_kb_variant="$XKBVARIANT"
      client_kb_options="$XKBOPTIONS"
    fi
    if [ -z "$client_kb_layout" ]; then
      # If no keybouard layout is found, set it as that
      # is assigned in drbl-ocs.conf, force to update it.
      client_kb_layout="$ocs_live_keymap_for_pxe_ocs_live"
      # For the rest (model, variant or options they might be nothing.
    fi
    if [ -n "$client_kb_layout" ]; then
      add_opt_in_pxelinux_cfg_block -n Clonezilla-live keyboard-layouts "$client_kb_layout"
      add_opt_in_grub_efi_cfg_block -n "clonezilla-live-client" keyboard-layouts "$client_kb_layout"
    fi
    # locales should be forced to use that assigned from drbl-ocs.conf. Normally it should be "en_US.UTF-8". Check drbl-ocs.conf for more details.
    if [ -n "$ocs_lang_for_pxe_ocs_live" ]; then
      add_opt_in_pxelinux_cfg_block -n Clonezilla-live locales "$ocs_lang_for_pxe_ocs_live"
      add_opt_in_grub_efi_cfg_block -n "clonezilla-live-client" locales "$ocs_lang_for_pxe_ocs_live"
    fi
    if [ -n "$ocs_daemonon_for_pxe_ocs_live" ]; then
      add_opt_in_pxelinux_cfg_block Clonezilla-live ocs_daemonon "$ocs_daemonon_for_pxe_ocs_live"
      add_opt_in_grub_efi_cfg_block "clonezilla-live-client" ocs_daemonon "$ocs_daemonon_for_pxe_ocs_live"
    fi
    server_IP="$(LC_ALL=C get-all-nic-ip -i | awk -F" " '{print $1}')"
    # For Clonezilla live, the mount point is always /home/partimag/
    if [ -n "$ocs_prerun_for_pxe_ocs_live" ]; then
      add_opt_in_pxelinux_cfg_block Clonezilla-live ocs_prerun "$ocs_prerun_for_pxe_ocs_live"
      add_opt_in_grub_efi_cfg_block "clonezilla-live-client" ocs_prerun "$ocs_prerun_for_pxe_ocs_live"
    else
      if [ -z "$(grep -E "ocs_prerun=\"[^\"]+\"" $PXE_CONF)" ]; then
        add_opt_in_pxelinux_cfg_block Clonezilla-live ocs_prerun "mount -t nfs $server_IP:$ocsroot /home/partimag/" 
      fi
      if [ -z "$(grep -E "ocs_prerun=\"[^\"]+\"" $GRUB_CONF)" ]; then
        add_opt_in_grub_efi_cfg_block "clonezilla-live-client" ocs_prerun "mount -t nfs $server_IP:$ocsroot /home/partimag/"
      fi
    fi
    if [ "$remove_some_boot_param_for_pxe_ocs_live" = "yes" ]; then
      # We prefer verbose messages
      for i in $boot_param_2_be_removed_in_pxe_ocs_live; do
        remove_opt_in_pxelinux_cfg_block Clonezilla-live $i
        remove_opt_in_grub_efi_cfg_block "clonezilla-live-client" $i
      done
    fi
  fi
} # end of prepare_pxecfg_for_pxe_ocs_live_if_required

# OCS_OPT is for ocs-sr
OCS_OPT=
# Set some default values, 
nfs_restart="no"
always_restore="no"
pxe_menu_default_mode=""
# If always restore, i.e. multicast loop, we will show the loop number, starting from 1.
mcast_loop="1"
udp_sender_extra_opt="$udp_sender_extra_opt_default"
USE_NTFSCLONE="no"
FORCE_TO_USE_DD="no"
create_part="yes"
restore_mbr="yes"
restore_prebuild_mbr="no"
rm_win_swap_hib="no"
select_img_in_client="no"
# default output for udpcast stderr is surpressed.
# NOTE! Do not redirect it to standard output (stdin), otherwise partimage/ntfsclone pipe will get wrong image!
udpcast_stderr="/dev/null"
# default not to run those scripts in $OCS_PRERUN_DIR $OCS_POSTRUN_DIR
run_prerun_dir="no"
run_postrun_dir="no"
gen_md5sum="no"
gen_sha1sum="no"
check_md5sum="no"
check_sha1sum="no"
gen_chksum_for_files_in_dev="no"
chk_chksum_for_files_in_dev="no"
chk_img_restoreable_mod_save="yes"
chk_img_restoreable_mod_restore="yes"
chk_img_restoreable_on_srv="yes"

# Parse command-line options
while [ $# -gt 0 ]; do
  case "$1" in
    -l|--language)
            shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      specified_lang="$1"
              shift
            fi
	    ;;
    -p|--postaction)  
            shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      postrun="$1"
              shift
            fi
	    OCS_OPT="$OCS_OPT -p $postrun"
            ;;
    -g|--grub-install)  
            install_grub="on"
            shift
            # skip the -xx option, in case 
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              grub_partition=$1
              shift
            fi
            [ -z "$grub_partition" ] && USAGE && exit 1
	    OCS_OPT="$OCS_OPT -g $grub_partition"
            ;;
    -a|--no-force-dma-on)  
	    OCS_OPT="$OCS_OPT --no-force-dma-on"
            shift;;
    -k|--no-fdisk|--no-create-partition)  
	    create_part="no"
	    OCS_OPT="$OCS_OPT -k"
            shift;;
    -k1|--fdisk-proportion)  
	    create_part="yes"
	    create_part_type="proportion"
	    OCS_OPT="$OCS_OPT -k1"
            shift;;
    -k2|--fdisk-manual)  
	    create_part="yes"
	    create_part_type="manual"
	    OCS_OPT="$OCS_OPT -k2"
            shift;;
    -t|--no-restore-mbr)  
	    restore_mbr="no"
	    OCS_OPT="$OCS_OPT -t"
            shift;;
    -t1|--restore-raw-mbr)  
            # The flag to restore syslinux mbr.bin to M$ windows system.
	    restore_prebuild_mbr="yes"
	    OCS_OPT="$OCS_OPT -t1"
            shift;;
    -u|--select-img-in-client)
	    select_img_in_client="yes"
	    OCS_OPT="$OCS_OPT -u"
            shift;;
    -e|--load-geometry)
	    OCS_OPT="$OCS_OPT -e"
            shift;;
    -e1|--change-geometry)  
            change_ntfs_boot_chs="on"
            shift
            # skip the -xx option, in case 
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              ntfs_boot_partition=$1
              shift
            fi
            [ -z "$ntfs_boot_partition" ] && USAGE && exit 1
	    OCS_OPT="$OCS_OPT -e1 $ntfs_boot_partition"
            ;;
    -e2|--load-geometry-from-edd)
	    OCS_OPT="$OCS_OPT -e2"
            shift;;
    -y|-y0|--always-restore|--always-restore-default-local)
	    always_restore="yes"
            pxe_menu_default_mode="local"
	    OCS_OPT="$OCS_OPT -y0"
            shift;;
    -y1|--always-restore-default-clone)
	    always_restore="yes"
            pxe_menu_default_mode="clone"
	    OCS_OPT="$OCS_OPT -y1"
            shift;;
    -y2|--always-restore-default-drbl)
	    always_restore="yes"
            pxe_menu_default_mode="drbl"
	    OCS_OPT="$OCS_OPT -y2"
            shift;;
    -c|--confirm)
	    OCS_OPT="$OCS_OPT -c"
	    shift;;
    -w|--wait-time)
            shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      TIME_to_wait="$1"
	      OCS_OPT="$OCS_OPT -w $TIME_to_wait"
              shift
            fi
	    ;;
    -s|--skip-hw-detect)
            hw_detect="off"
	    shift;;
    --debug=?*)
            debug_level=${1#--debug=}
	    OCS_OPT="$OCS_OPT --debug=$debug_level"
	    shift;;
    -b|--batch)
            # Here we append --batch to OCS_OPT instead of -b, (it will confuse init, sinice -b for init is emergency mode)
            ocs_batch_mode="on"
	    OCS_OPT="$OCS_OPT --batch"
	    shift;;
    -d|--debug-mode)
            debug_mode="on"
	    OCS_OPT="$OCS_OPT -d"
	    shift;;
    -d0|--dialog)  
	    DIA="dialog" 
	    shift;;
    -d1|--Xdialog)  
	    DIA="Xdialog" 
	    shift;;
    -d2|--whiptail)  
	    DIA="whiptail" 
	    shift;;
    -d3|--gdialog)  
	    DIA="gdialog" 
	    shift;;
    -d4|--kdialog)  
	    DIA="kdialog" 
	    shift;;
    -h|--hosts)
	    LIST_HOST="on"
	    shift
            # skip the -xx option, in case 
            if [ -z "$(echo $1 |grep ^-.)" ]; then
	      # parse if the arg is IP, skip those not IP
              if [ -n "$(echo $1 | grep -E "^[[:space:]]*([[:digit:]]+\.){3}[[:digit:]]+([[:space:]]|$)+")" ] ; then
                IP_LIST=$1
                shift
	      else
		echo "\"$1\" is not a suitable IP_LIST!!! Program terminated!!!"
		exit 1
              fi
            fi
	    ;;
    -m|--module)
            shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
              module_to_load=$1
              shift
            fi
            [ -z "$module_to_load" ] && USAGE && exit 1
	    OCS_OPT="$OCS_OPT -m \"$module_to_load\""
            ;;
    -n|--no-nfs-restart)
            # This function is deprecated, and it's not necesssary (since we already set nfs_restart="no"), but we have to be compatable with the old version. We will remove this in the future.
	    nfs_restart="no"
	    shift;;
    -f|--nfs-restart)
	    nfs_restart="yes"
	    shift;;
    -r|--resize-partition)
	    OCS_OPT="$OCS_OPT -r"
	    shift;;
    -v|--verbose)
	    verbose="on"
	    OCS_OPT="$OCS_OPT -v"
	    shift;;
    -z0|--no-compress)
            OCS_OPT="$OCS_OPT -z0"
	    shift;;
    -z1|--gzip-compress)
            OCS_OPT="$OCS_OPT -z1"
	    shift;;
    -z1p|--smp-gzip-compress)
            OCS_OPT="$OCS_OPT -z1p"
	    shift;;
    -z2|--bz2-compress)
            OCS_OPT="$OCS_OPT -z2"
	    shift;;
    -z2p|--smp-bzip2-compress)
            OCS_OPT="$OCS_OPT -z2p"
	    shift;;
    -z3|--lzo-compress)
            OCS_OPT="$OCS_OPT -z3"
	    shift;;
    -z4|--lzma-compress)
            OCS_OPT="$OCS_OPT -z4"
	    shift;;
    -z5|--xz-compress)
            OCS_OPT="$OCS_OPT -z5"
	    shift;;
    -z5p|--smp-xz-compress)
            OCS_OPT="$OCS_OPT -z5p"
	    shift;;
    -z6|--lzip-compress)
            OCS_OPT="$OCS_OPT -z6"
	    shift;;
    -z6p|--smp-lzip-compress)
            OCS_OPT="$OCS_OPT -z6p"
	    shift;;
    -nogui|--nogui)
            # -nogui is for backward compatable, better to use --nogui
            OCS_OPT="$OCS_OPT --nogui"
	    shift;;
    -ntfs-ok|--ntfs-ok)
            # if ntfs integrity is assumed OK, do not check
            OCS_OPT="$OCS_OPT --ntfs-ok"
	    shift;;
    -rm-win-swap-hib|--rm-win-swap-hib)
            # Remove page and hibernation files in M$ windows
            OCS_OPT="$OCS_OPT --rm-win-swap-hib"
	    shift;;
    -rescue|--rescue)
            OCS_OPT="$OCS_OPT --rescue"
	    shift;;
    -fsck-src-part|--fsck-src-part)
            OCS_OPT="$OCS_OPT --fsck-src-part"
	    shift;;
    -fsck-src-part-y|--fsck-src-part-y)
            OCS_OPT="$OCS_OPT --fsck-src-part-y"
	    shift;;
    -mp|--mount-point)
            shift; 
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
              mount_point=$1
	      shift
            fi
            [ -z "$mount_point" ] && USAGE && exit 1
	    OCS_OPT="$OCS_OPT --mount-point $mount_point" ; 
	    ;;
    -i|--image-size)
	    shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
              VOL_LIMIT=$1
	      shift
            fi
            [ -z "$VOL_LIMIT" ] && USAGE && exit 1
            OCS_OPT="$OCS_OPT -i $VOL_LIMIT"
	    ;;
    --time-to-wait)
	    shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      mcast_wait_time="$1"
	      shift
            fi
	    ;;
    --clients-to-wait)
	    shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      n_clients="$1"
	      shift
            fi
	    ;;
    --max-time-to-wait)
	    shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      mcast_max_wait_time="$1"
	      shift
            fi
            [ -z "$mcast_max_wait_time" ] && USAGE && exit 1
	    # Client need to know the --max-time-to-wait so that when sleeping
	    # between partitions restoring clone won't timeout.
            OCS_OPT="$OCS_OPT --max-time-to-wait $mcast_max_wait_time"
	    ;;
    -x|--full-duplex)
            udp_sender_extra_opt="$udp_sender_extra_opt --full-duplex"
	    shift;;
    -brdcst|--broadcast)
            udp_sender_extra_opt="$udp_sender_extra_opt --broadcast"
	    shift;;
    -q|--use-ntfsclone)
            USE_NTFSCLONE="yes"
            OCS_OPT="$OCS_OPT --use-ntfsclone"
	    shift;;
    -q1|--force-to-use-dd)
            FORCE_TO_USE_DD="yes"
            OCS_OPT="$OCS_OPT --force-to-use-dd"
	    shift;;
    -q2|--use-partclone)
            USE_PARTCLONE="yes"
            USE_NTFSCLONE="yes"
            OCS_OPT="$OCS_OPT --use-partclone"
	    shift;;
    -j|--create-part-by-sfdisk)
            # We leave this option for backward compatability.
	    OCS_OPT="$OCS_OPT --create-part-by-sfdisk"
	    shift;;
    -j0|--create-part-by-dd)
	    OCS_OPT="$OCS_OPT --create-part-by-dd"
	    shift;;
    -j1|--dump-mbr-in-the-end)
	    OCS_OPT="$OCS_OPT --dump-mbr-in-the-end"
	    shift;;
    -j2|--clone-hidden-data)
	    OCS_OPT="$OCS_OPT --clone-hidden-data"
	    shift;;
    -icrc|--icrc)
	    OCS_OPT="$OCS_OPT --icrc"
	    shift;;
    -irhr|--irhr)
	    OCS_OPT="$OCS_OPT --irhr"
	    shift;;
    -ius|--ius)
	    OCS_OPT="$OCS_OPT --ius"
	    shift;;
    -icds|--ignore-chk-dsk-size-pt)
	    OCS_OPT="$OCS_OPT --ignore-chk-dsk-size-pt"
	    shift;;
    -iefi|--ignore-update-efi-nvram)
	    OCS_OPT="$OCS_OPT --ignore-update-efi-nvram"
	    shift;;
    -srel|--save-restore-error-log)
	    OCS_OPT="$OCS_OPT --save-restore-error-log"
	    shift;;
    -hn0)
	    shift
            change_win_hostname="By_IP"
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      win_hostname_prefix="$1"
	      shift
            fi
            [ -z "$win_hostname_prefix" ] && USAGE && exit 1
            OCS_OPT="$OCS_OPT -hn0 $win_hostname_prefix"
	    ;;
    -hn1)
	    shift
            change_win_hostname="By_MAC"
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      win_hostname_prefix="$1"
	      shift
            fi
            [ -z "$win_hostname_prefix" ] && USAGE && exit 1
            OCS_OPT="$OCS_OPT -hn1 $win_hostname_prefix"
	    ;;
    -o|-o1|--run-postrun-dir) 
            # -o is for backward compatability
	    run_postrun_dir="yes"
	    OCS_OPT="$OCS_OPT --run-postrun-dir"
	    shift;;
    -o0|--run-prerun-dir) 
	    run_prerun_dir="yes"
	    OCS_OPT="$OCS_OPT --run-prerun-dir"
	    shift;;
    -ns|--ntfs-progress-in-image-dir)
	    OCS_OPT="$OCS_OPT --ntfs-progress-in-image-dir"
	    shift;;
    -gm|--gen-md5sum)
	    gen_md5sum="yes"
	    OCS_OPT="$OCS_OPT -gm"
	    shift;;
    -gs|--gen-sha1sum)
	    gen_sha1sum="yes"
	    OCS_OPT="$OCS_OPT -gs"
	    shift;;
    -gmf|--gen-chksum-for-files-in-dev)
	    gen_chksum_for_files_in_dev="yes"
	    OCS_OPT="$OCS_OPT -gmf"
	    shift;;
    -cm|--check-md5sum)
	    check_md5sum="yes"
	    OCS_OPT="$OCS_OPT -cm"
	    shift;;
    -cs|--check-sha1sum)
	    check_sha1sum="yes"
	    OCS_OPT="$OCS_OPT -cs"
	    shift;;
    -cmf|--chk-chksum-for-files-in-dev)
	    chk_chksum_for_files_in_dev="yes"
	    OCS_OPT="$OCS_OPT -cmf"
	    shift;;
    --mcast-iface)
	    shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      eth_for_multicast="$1"
	      shift
            fi
            [ -z "$eth_for_multicast" ] && USAGE && exit 1
	    ;;
    -um|--user-mode)
            shift
            # skip the -xx option, in case 
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              ocs_user_mode="$1"
              shift
            fi
            [ -z "$ocs_user_mode" ] && USAGE && exit 1
	    OCS_OPT="$OCS_OPT -um"
	    ;;
    -sc0|--skip-check-restorable-on-srv)
            # flag to check if the image is restorable on clonezilla server
	    chk_img_restoreable_on_srv="no"
	    shift
            ;;
    -sc|-scs|--skip-check-restorable|--skip-check-restorable-s)
            # flag to check if the image is restorable
	    chk_img_restoreable_mod_save="no"
	    OCS_OPT="$OCS_OPT -scs"
	    shift
            ;;
    -scr|--skip-check-restorable-r)
            # Flag to check if the image is restorable
	    chk_img_restoreable_mod_restore="no"
	    OCS_OPT="$OCS_OPT -scr"
	    shift
            ;;
    -*)     echo "${0}: ${1}: invalid option" >&2
            USAGE >& 2
            exit 2 ;;
    *)      break ;;
  esac
done

# drbl_ocs_type, task, target_image are global variables.
# we use 3 times shift instead of "shift 3", it because the run command maybe like:
# drbl-ocs -b -q -p reboot -z3 -l en startdisk save
# so if we use "shift 3", it will fail, then target_dev will be "startdisk save"! It's wrong.
drbl_ocs_type="$1"
shift
task="$1"
shift
target_image="$1"
shift
target_dev="$*"
# If the inputted dev is: "hda hdb", convert it to hda hdb (so it won't be ""hda hdb"")
target_dev="$(echo $target_dev | tr -d \")"

#
ask_and_load_lang_set $specified_lang

# check DIA
check_DIA_set_ESC $DIA

[ -z "$VOL_LIMIT" ] && VOL_LIMIT=$VOL_LIMIT_DEFAULT
# ask_user is used for interactive dialog.
if [ "$target_image" = "ask_user" -a "$(echo $task | grep -E "save")" ]; then
  [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
  echo "$msg_ask_user_is_reserved_for_save_mode"
  [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
  echo "Program terminated!!!"
  exit 1
fi

check_ocs_input_params

# ocs root
[ ! -d "$ocsroot" ] && mkdir -p $ocsroot

# change to other mount point for extra harddisk
# Note: functions get_existing_disk_image, get_existing_parts_image and get_existing_partitions_from_img will use $imagedir 
if [ -n "$mount_point" ]; then
   echo "Using the image root directory $mount_point instead of $ocsroot."
   imagedir="$mount_point" 
else
   imagedir="$ocsroot"
fi

echo $msg_delimiter_star_line
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
[ "$create_part" = "no" ] && echo "$msg_do_not_create_part"
[ "$restore_mbr" = "no" ] && echo "$msg_do_not_restore_mbr"
[ "$select_img_in_client" = "yes" ] && echo "$msg_you_have_to_input_image_names_in_client"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo $msg_delimiter_star_line

if [ "$verbose" = "on" ]; then
  # The default output for udpcast stderr is surpressed, now turn it on
  udpcast_stderr="/dev/stderr"
fi

# To avoid confusion about multicast or broadcast, we use different prompts.
if [ -n "$(echo "$udp_sender_extra_opt" | grep -E -- "--broadcast")" ]; then
  multi_broad_cast_prompt="broadcast"
else
  multi_broad_cast_prompt="multicast"
fi

##############
#### main ####
##############

# HOST_OPTION_MODIFY: add this part for specifying the hosts.
if [ "$LIST_HOST" = "on" ]; then
  # copy the skeleton file
  PXE_CONF="$PXELINUX_DIR/default_skeleton"
  cp -f $PXELINUX_DIR/default $PXE_CONF
  GRUB_CONF="$GRUB_EFINB_DIR/grub.cfg_skeleton"
  cp -f $GRUB_EFINB_DIR/grub.cfg $GRUB_CONF
else
  PXE_CONF="$PXELINUX_DIR/default"
  GRUB_CONF="$GRUB_EFINB_DIR/grub.cfg"
  # Clean all the previous saved config file.
  # These files maybe look like: 01-MAC address, something like C0A8XXXX (only for 192.168.x), default_skeleton
  echo -n "Clean all the previous saved config file if they exist..."
  clean_stale_node_pxe_cfg
  # Only for those non-stop case we will clean the GRUB UEFI NB config files
  # Otherwise if only /tftpboot/nbi_img/grub.cfg exist, the GRUB EFI NB clienet can not boot into local disk because the original "local-disk" menuentry is only a template. For the real working one, .e.g. grub.cfg-01-00-0c-29-7d-29-b7, it's the one created by ocsmgrd.
  if [ "$drbl_ocs_type" != "stop" ]; then
    clean_stale_node_grub_efi_cfg
  fi
fi

if [ ! -d "$ocsroot" ]; then
  echo "Please make sure your $ocsroot is a directory!!!"
  echo "We can NOT go on! Press \"c\" to enter command prompt or any other key to quit the program..." 
  read fail_answer
  case "$fail_answer" in
    [cC]) sulogin ;;
       *) exit 1 ;;
  esac
fi
#
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo "Client OS type when doing Clonezilla job is: $diskless_client_os"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL

#
prepare_pxecfg_for_pxe_ocs_live_if_required

# Create the dir for clonezilla pre/post run when clone starts/finishes. Therefore we can put some scripts in that directory.
[ ! -d $OCS_PRERUN_DIR ] && mkdir -p $OCS_PRERUN_DIR
[ ! -d $OCS_POSTRUN_DIR ] && mkdir -p $OCS_POSTRUN_DIR

# put default postrun if empty
[ -z "$postrun" ] && postrun="$POSTRUN_DEF"

# If the image is checked on the server, then we force to skip image checking on the clients when restoring.
if [ "$chk_img_restoreable_on_srv" = "yes" ]; then
  chk_img_restoreable_mod_restore="no"
  OCS_OPT="$OCS_OPT -scr"
else
  # When image is not checked on the server, how about the client? Only select_in_client mode we will make it to be check on the clients.
  if [ ! "$drbl_ocs_type" = "select_in_client" ]; then
    if [ -n "$(echo $task | grep -i "restore")" ]; then
      # Not in select_in_client mode, skip checking in the clients.
      chk_img_restoreable_mod_restore="no"
      OCS_OPT="$OCS_OPT -scr"
    fi
  fi
fi

#
case "$drbl_ocs_type" in
  "startdisk")
    target_hd="$target_dev"
    # task, target_image & target_hd are global variables
    do_startdisk
    if [ "$diskless_client_os" = "clonezilla-live" ]; then
      hide_reveal_pxe_img Clonezilla-live reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-live-client reveal $GRUB_CONF
    else
      hide_reveal_pxe_img clonezilla reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-se-client reveal $GRUB_CONF
    fi
    [ "$copy_rc1d_for_drbl_ssi_clone_box" = "yes" ] && copy_rc1d_for_drbl_ssi
    prompt_to_turn_on_client $task
    ;;
  "startparts")
    target_parts="$target_dev"
    # task, target_image & target_parts are global variables
    do_startparts
    if [ "$diskless_client_os" = "clonezilla-live" ]; then
      hide_reveal_pxe_img Clonezilla-live reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-live-client reveal $GRUB_CONF
    else
      hide_reveal_pxe_img clonezilla reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-se-client reveal $GRUB_CONF
    fi
    [ "$copy_rc1d_for_drbl_ssi_clone_box" = "yes" ] && copy_rc1d_for_drbl_ssi
    prompt_to_turn_on_client $task
    ;;
  "select_in_client")
    do_select_in_client
    if [ "$diskless_client_os" = "clonezilla-live" ]; then
      hide_reveal_pxe_img Clonezilla-live reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-live-client reveal $GRUB_CONF
    else
      hide_reveal_pxe_img clonezilla reveal $PXE_CONF
      hide_reveal_grub_efi_ent clonezilla-se-client reveal $GRUB_CONF
    fi
    [ "$copy_rc1d_for_drbl_ssi_clone_box" = "yes" ] && copy_rc1d_for_drbl_ssi
    prompt_to_turn_on_client "select_in_client"
    ;;
  "stop")
    [ "$copy_rc1d_for_drbl_ssi_clone_box" = "yes" ] && remove_rc1d_for_drbl_ssi
    # since now drbl and clonezilla separates in PXELinux menu, no more regen the drbl ssi template tarball.
    stop_ocs_service no
    # Make client to boot in drbl mode with menu label specified.
    # get the distribution name and type: OS_Version and OS_type
    check_distribution_name
    # Check if drbl_mode is none or not. If none, we have to set the default menu as local
    # Here we use subshell to avoid variables are introduced.
    (
      if [ -e /etc/drbl/drbl_deploy.conf ]; then
        . /etc/drbl/drbl_deploy.conf
      fi
      case "$drbl_mode" in
        none) force_pxe_clients_boot_label local 
              force_grub_efi_clients_boot_label local-disk "Local"
              ;;
           *) force_pxe_clients_boot_label drbl
              force_grub_efi_clients_boot_label drbl-client
              ;;
      esac
    )
    # When stopping the service, we disable all, no matter it's NFSroot-based or Clonezilla-live based.
    # (1) for NFSroot-based
    # For GRUB EFI NB config, it's important we have to remove the option first, then hide it.
    remove_opt_in_pxelinux_cfg_block clonezilla ocs_opt
    remove_opt_in_grub_efi_cfg_block "clonezilla-se-client" ocs_opt
    hide_reveal_pxe_img clonezilla hide $PXE_CONF
    hide_reveal_grub_efi_ent clonezilla-se-client hide $GRUB_CONF
    # (2) for Clonezila-live-based
    if [ -n "$(LC_ALL=C grep -E '^label Clonezilla-live' $PXE_CONF)" ]; then
      remove_opt_in_pxelinux_cfg_block Clonezilla-live ocs_live_run
      hide_reveal_pxe_img Clonezilla-live hide $PXE_CONF
    fi
    if [ -e "$GRUB_CONF" ]; then
      if [ -n "$(LC_ALL=C grep -E '^menuentry.*--id clonezilla-live-client' $GRUB_CONF)" ]; then
        remove_opt_in_grub_efi_cfg_block "clonezilla-live-client" ocs_live_run
        hide_reveal_grub_efi_ent clonezilla-live-client hide $GRUB_CONF
      fi
    fi
    # Since now we separate Clonezilla and DRBL label block in PXE menu, 
    # Clonezilla will always with runlevel 1. Skip this.
    # remove runlevel 1 to kernel parameter in pxelinux config
    # remove_runlevel_1_in_pxelinux_cfg_block clonezilla

    # If the mode is in always_restore, we will set local boot as default. Since
    # the always_restore mode is only useful with local OS exists.
    if [ "$always_restore" = "yes" ]; then
      force_pxe_clients_boot_label local "$local_os_menu_label"
      force_grub_efi_clients_boot_label local-disk "Local" >/dev/null 
    fi
    ;;
  *)
    USAGE
    ;;
esac

exit 0