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livecd-iso-to-disk
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gistfile1.txt
#!/bin/bash
# Transfer a Live image so that it's bootable off of a USB/SD device.
# Copyright 2007-2012 Red Hat, Inc.
#
# Jeremy Katz <[email protected]>
# Brian C. Lane <[email protected]>
#
# overlay/persistence enhancements by Douglas McClendon <[email protected]>
# GPT+MBR hybrid enhancements by Stewart Adam <[email protected]>
#
# 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.
export PATH=/sbin:/usr/sbin:$PATH
shortusage() {
echo "
SYNTAX
livecd-iso-to-disk [--help] [--noverify] [--format] [--msdos] [--reset-mbr]
[--efi] [--skipcopy] [--force] [--xo] [--xo-no-home]
[--timeout <time>] [--totaltimeout <time>]
[--extra-kernel-args <args>] [--multi] [--livedir <dir>]
[--compress] [--skipcompress] [--swap-size-mb <size>]
[--overlay-size-mb <size>] [--home-size-mb <size>]
[--delete-home] [--crypted-home] [--unencrypted-home]
<source> <target device>
(Enter livecd-iso-to-disk --help on the command line for more information.)"
}
usage() {
echo "
"
shortusage
echo "
livecd-iso-to-disk - Transfer a LiveOS image so that it's bootable off of
a USB/SD device.
The script may be run in simplest form with just the two arguments:
<source>
This may be the filesystem path to a LiveOS .iso image file,
such as from a CD-ROM, DVD, or download. It could also be the
device node reference for the mount point of another LiveOS
filesystem, including the currently-running one (such as a
booted Live CD/DVD/USB, where /dev/live references the running
image device).
<target device>
This should be the device partition name for the attached,
target device, such as /dev/sdb1 or /dev/sdc1. (Issue the
df -Th command to get a listing of the mounted partitions,
where you can confirm the filesystem types, available space,
and device names.) Be careful to specify the correct device,
or you may overwrite important data on another disk!
To execute the script to completion, you will need to run it with root user
permissions.
SYSLINUX must be installed on the computer running the installation script.
DESCRIPTION
livecd-iso-to-disk installs a Live CD/DVD/USB image (LiveOS) onto a USB/SD
storage device (or any storage partition that will boot with a SYSLINUX
bootloader). The target storage device can then boot the installed
operating system on systems that support booting via the USB or the SD
interface. The script requires a LiveOS source image and a target storage
device. The source image may be either a LiveOS .iso file, the currently-
running LiveOS image, the device node reference for an attached device with
an installed LiveOS image, or a file backed by a block device with an
installed LiveOS image. If the operating system supports persistent
overlays for saving system changes, a pre-sized overlay may be included with
the installation.
Unless you request the --format option, the installation does not destroy
data outside of the LiveOS, syslinux, & EFI folders on your target device.
This allows one to maintain other files on the target disk outside of the
LiveOS filesystem.
LiveOS images provide embedded filesystems through the Device-mapper
component of the Linux kernel. The embedded filesystems exist within files
such as /LiveOS/squashfs.img (the default compressed storage) or
/LiveOS/ext3fs.img (an uncompressed version) on the primary volume partition
of the storage device. In use, these are read-only filesystems. Optionally,
one may specify a persistent LiveOS overlay to hold image-change snapshots
(that use write-once, difference-tracking storage) in the
/LiveOS/overlay-<device_id> file, which, *one should note*, always grows in
size due to the storage mechanism. (The fraction of allocated space that
has been consumed by system activity and changes may be displayed by issuing
the 'dmsetup status' command in a terminal session of a running LiveOS
image.) One way to conserve the unrecoverable, overlay file space, is to
specify a persistent home folder for user files, which will be saved in a
/LiveOS/home.img filesystem image file. This file space is encrypted by
default, but is not compressed. (One may bypass encryption with the
--unencrypted-home installation option.) Files in this home folder may be
erased to recover and reuse their storage space. The home.img file is also
convenient for backing up or swapping user account files.
OPTIONS
--help
Displays usage information and exits.
--noverify
Disables the image validation process that occurs before the image is
installed from the original Live CD .iso image. When this option is
specified, the image is not verified before loading onto the target
storage device.
--format
Formats the target device and creates an MS-DOS partition table (or GPT
partition table, if the --efi option is passed).
--msdos
Forces format to use msdos instead of ext4.
--reset-mbr
Sets the Master Boot Record (MBR) of the target storage device to the
mbr.bin file from the installation system's syslinux directory. This
may be helpful in recovering a damaged or corrupted device.
--efi
Creates a GUID partition table when --format is passed, and installs a
hybrid Extensible Firmware Interface (EFI)/MBR bootloader on the disk.
This is necessary for most Intel Macs.
--skipcopy
Skips the copying of the live image to the target device, bypassing the
actions of the --format, --overlay-size-mb, --home-size-mb, &
--swap-size-mb options, if present on the command line. (The --skipcopy
option may be used while testing the script, in order to avoid repeated
and lengthy copy commands, or to repair boot configuration files on a
previously installed device.)
--force
This option allows the installation script to bypass a delete
confirmation dialog in the event that a pre-existing LiveOS directory
is found on the target device.
--xo
Used to prepare an image for the OLPC XO-1 laptop with its compressed,
JFFS2 filesystem. Do not use the following options with --xo:
--overlay-size-mb <size>, home-size-mb <size>, --delete-home,
--compress
--xo-no-home
Used together with the --xo option to prepare an image for an OLPC XO
laptop with the home folder on an SD card instead of the internal flash
storage.
--timeout
Modifies the bootloader's timeout value, which indicates how long to
pause at the boot: prompt before booting automatically. This overrides
the value set during iso creation. Units are 1/10 s. The timeout is
canceled when any key is pressed, the assumption being that the user
will complete the command line. A timeout of zero will disable the
timeout completely.
--totaltimeout
Adds a bootloader totaltimeout, which indicates how long to wait before
booting automatically. This is used to force an automatic boot. This
timeout cannot be canceled by the user. Units are 1/10 s.
--extra-kernel-args <args>
Specifies additional kernel arguments, <args>, that will be inserted
into the syslinux and EFI boot configurations. Multiple arguments
should be specified in one string, i.e.,
--extra-kernel-args \"arg1 arg2 ...\"
--multi
Used when installing multiple image copies to signal configuration of
the boot files for the image in the --livedir <dir> parameter.
--livedir <dir>
Used with multiple image installations to designate the directory <dir>
for the particular image.
--compress (default state for the operating system files)
The default, compressed SquashFS filesystem image is copied on
installation. This option has no effect when the source filesystem is
already expanded.
--skipcompress (default option when --xo is specified)
Expands the source SquashFS image on installation into the read-only
/LiveOS/ext3fs.img filesystem image file.
--swap-size-mb <size>
Sets up a swap file of <size> mebibytes (integer values only) on the
target device.
--overlay-size-mb <size>
This option sets the overlay size in mebibytes (integer values only).
The overlay makes persistent storage available to the live operating
system, if the operating system supports it. The persistent LiveOS
overlay holds image-change snapshots (using write-once, difference-
tracking storage) in the /LiveOS/overlay-<device_id> file, which, *one
should note*, always grows in size due to the storage mechanism. (The
fraction of allocated space that has been consumed may be displayed by
issuing the 'dmsetup status' command in a terminal session of a running
LiveOS installation.) One way to conserve the unrecoverable, overlay
file space, is to specify a persistent home folder for user files, see
--home-size-mb below. The target storage device must have enough free
space for the image and the overlay. A maximum <size> of 2047 MiB is
permitted for vfat-formatted devices. If there is insufficient room on
your device, you will be given information to help in adjusting your
settings.
--home-size-mb <size>
Sets the home directory size in mebibytes (integer values only). A
persistent home directory will be made in the /LiveOS/home.img
filesystem image file. This file space is encrypted by default, but not
compressed (one may bypass encryption with the --unencrypted-home
installation option). Files in this home folder may be erased to
recover and reuse their storage space. The target storage device must
have enough free space for the image, any overlay, and the home
directory. Note that the --delete-home option must also be selected to
replace an existing persistent home with a new, empty one. A maximum
<size> of 2047 MiB is permitted for vfat-formatted devices. If there is
insufficient room on your device, you will be given information to help
in adjusting your settings.
--delete-home
To prevent unwitting deletion of user files, this option must be
explicitly selected when the option --home-size-mb <size> is selected
and there is an existing persistent home directory on the target device.
--crypted-home (default that only applies to new home-size-mb requests)
Specifies the default option to encrypt a new persistent home directory
if --home-size-mb <size> is specified.
--unencrypted-home
Prevents the default option to encrypt a new persistent home directory.
CONTRIBUTORS
livecd-iso-to-disk: David Zeuthen, Jeremy Katz, Douglas McClendon,
Chris Curran and other contributors.
(See the AUTHORS file in the source distribution for
the complete list of credits.)
BUGS
Report bugs to the mailing list
http://admin.fedoraproject.org/mailman/listinfo/livecd or directly to
Bugzilla http://bugzilla.redhat.com/bugzilla/ against the Fedora product,
and the livecd-tools component.
COPYRIGHT
Copyright (C) Fedora Project 2008, 2009, 2010 and various contributors.
This is free software. You may redistribute copies of it under the terms of
the GNU General Public License http://www.gnu.org/licenses/gpl.html.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
livecd-creator, project website http://fedoraproject.org/wiki/FedoraLiveCD
"
exit 1
}
cleanup() {
sleep 2
[ -d "$SRCMNT" ] && umount $SRCMNT && rmdir $SRCMNT
[ -d "$TGTMNT" ] && umount $TGTMNT && rmdir $TGTMNT
}
exitclean() {
RETVAL=$?
if [ -d "$SRCMNT" ] || [ -d "$TGTMNT" ];
then
[ "$RETVAL" = 0 ] || echo "Cleaning up to exit..."
cleanup
fi
exit $RETVAL
}
isdevloop() {
[ x"${1#/dev/loop}" != x"$1" ]
}
getdisk() {
DEV=$1
if isdevloop "$DEV"; then
device="$DEV"
return
fi
p=$(udevadm info -q path -n $DEV)
if [ $? -gt 0 ]; then
echo "Error getting udev path to $DEV"
exitclean
fi
if [ -e /sys/$p/device ]; then
device=$(basename /sys/$p)
else
device=$(basename $(readlink -f /sys/$p/../))
fi
if [ ! -e /sys/block/$device -o ! -e /dev/$device ]; then
echo "Error finding block device of $DEV. Aborting!"
exitclean
fi
device="/dev/$device"
# FIXME: weird dev names could mess this up I guess
p=/dev/$(basename $p)
partnum=${p##$device}
}
resetMBR() {
if isdevloop "$DEV"; then
return
fi
getdisk $1
# if efi, we need to use the hybrid MBR
if [ -n "$efi" ]; then
if [ -f /usr/lib/syslinux/gptmbr.bin ]; then
cat /usr/lib/syslinux/gptmbr.bin > $device
elif [ -f /usr/share/syslinux/gptmbr.bin ]; then
cat /usr/share/syslinux/gptmbr.bin > $device
else
echo "Could not find gptmbr.bin (syslinux)"
exitclean
fi
# Make it bootable on EFI and BIOS
parted -s $device set $partnum legacy_boot on
else
if [ -f /usr/lib/syslinux/mbr.bin ]; then
cat /usr/lib/syslinux/mbr.bin > $device
elif [ -f /usr/share/syslinux/mbr.bin ]; then
cat /usr/share/syslinux/mbr.bin > $device
else
echo "Could not find mbr.bin (syslinux)"
exitclean
fi
fi
}
checkMBR() {
if isdevloop "$DEV"; then
return 0
fi
getdisk $1
bs=$(mktemp /tmp/bs.XXXXXX)
dd if=$device of=$bs bs=512 count=1 2>/dev/null || exit 2
mbrword=$(hexdump -n 2 $bs |head -n 1|awk {'print $2;'})
rm -f $bs
if [ "$mbrword" = "0000" ]; then
if [ -z "$format" ]; then
echo "MBR appears to be blank."
echo "Press Enter to replace the MBR and continue or ctrl-c to abort"
read
fi
resetMBR $1
fi
return 0
}
checkPartActive() {
dev=$1
getdisk $dev
# if we're installing to whole-disk and not a partition, then we
# don't need to worry about being active
if [ "$dev" = "$device" ]; then
return
fi
if isdevloop "$DEV"; then
return
fi
if [ "$(/sbin/fdisk -l $device 2>/dev/null |grep -m1 $dev |awk {'print $2;'})" != "*" ]; then
echo "Partition isn't marked bootable!"
echo "You can mark the partition as bootable with "
echo " # /sbin/parted $device"
echo " (parted) toggle N boot"
echo " (parted) quit"
exitclean
fi
}
checkLVM() {
dev=$1
if [ -x /sbin/pvs -a \
"$(/sbin/pvs -o vg_name --noheadings $dev* 2>/dev/null || :)" ]; then
echo "Device, $dev, contains a volume group and cannot be formated!"
echo "You can remove the volume group using vgremove."
exitclean
fi
return 0
}
createGPTLayout() {
dev=$1
getdisk $dev
echo "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
umount ${device}* &> /dev/null || :
wipefs -a ${device}
/sbin/parted --script $device mklabel gpt
partinfo=$(LC_ALL=C /sbin/parted --script -m $device "unit MB print" |grep ^$device:)
dev_size=$(echo $partinfo |cut -d : -f 2 |sed -e 's/MB$//')
p1_size=$(($dev_size - 3))
if [ $p1_size -le 0 ]; then
echo "Your device isn't big enough to hold $SRC"
echo "It is $(($p1_size * -1)) MB too small"
exitclean
fi
p1_start=1
p1_end=$(($p1_size + 1))
/sbin/parted -s $device u MB mkpart '"EFI System Partition"' fat32 $p1_start $p1_end set 1 boot on
# Sometimes automount can be _really_ annoying.
echo "Waiting for devices to settle..."
/sbin/udevadm settle
sleep 5
TGTDEV=${device}1
umount $TGTDEV &> /dev/null || :
/sbin/mkdosfs -n LIVE $TGTDEV
TGTLABEL="UUID=$(/sbin/blkid -s UUID -o value $TGTDEV)"
}
createMSDOSLayout() {
dev=$1
getdisk $dev
echo "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
umount ${device}* &> /dev/null || :
wipefs -a ${device}
/sbin/parted --script $device mklabel msdos
partinfo=$(LC_ALL=C /sbin/parted --script -m $device "unit MB print" |grep ^$device:)
dev_size=$(echo $partinfo |cut -d : -f 2 |sed -e 's/MB$//')
p1_size=$(($dev_size - 3))
if [ $p1_size -le 0 ]; then
echo "Your device isn't big enough to hold $SRC"
echo "It is $(($p1_size * -1)) MB too small"
exitclean
fi
p1_start=1
p1_end=$(($p1_size + 1))
/sbin/parted -s $device u MB mkpart primary fat32 $p1_start $p1_end set 1 boot on
# Sometimes automount can be _really_ annoying.
echo "Waiting for devices to settle..."
/sbin/udevadm settle
sleep 5
if ! isdevloop "$DEV"; then
TGTDEV=${device}1
else
TGTDEV=${device}
fi
umount $TGTDEV &> /dev/null || :
/sbin/mkdosfs -n LIVE $TGTDEV
TGTLABEL="UUID=$(/sbin/blkid -s UUID -o value $TGTDEV)"
}
createEXTFSLayout() {
dev=$1
getdisk $dev
echo "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
umount ${device}* &> /dev/null || :
wipefs -a ${device}
/sbin/parted -s $device mklabel msdos
partinfo=$(LC_ALL=C /sbin/parted -s -m $device "u MB print" |grep ^$device:)
dev_size=$(echo $partinfo |cut -d : -f 2 |sed -e 's/MB$//')
p1_size=$(($dev_size - 3))
if [ $p1_size -le 0 ]; then
echo "Your device isn't big enough to hold $SRC"
echo "It is $(($p1_size * -1)) MB too small"
exitclean
fi
p1_start=1
p1_end=$(($p1_size + 1))
/sbin/parted -s $device u MB mkpart primary ext2 $p1_start $p1_end set 1 boot on
# Sometimes automount can be _really_ annoying.
echo "Waiting for devices to settle..."
/sbin/udevadm settle
sleep 5
TGTDEV=${device}1
umount $TGTDEV &> /dev/null || :
# Check extlinux version
if extlinux -v 2>&1 | grep -q 'extlinux 3'; then
mkfs=/sbin/mkfs.ext3
else
mkfs=/sbin/mkfs.ext4
fi
$mkfs -L LIVE $TGTDEV
TGTLABEL="UUID=$(/sbin/blkid -s UUID -o value $TGTDEV)"
}
checkGPT() {
dev=$1
getdisk $dev
if [ "$(/sbin/fdisk -l $device 2>/dev/null |grep -c GPT)" -eq "0" ]; then
echo "EFI boot requires a GPT partition table."
echo "This can be done manually or you can run with --format"
exitclean
fi
partinfo=$(LC_ALL=C /sbin/parted --script -m $device "print" |grep ^$partnum:)
volname=$(echo $partinfo |cut -d : -f 6)
flags=$(echo $partinfo |cut -d : -f 7)
if [ "$volname" != "EFI System Partition" ]; then
echo "Partition name must be 'EFI System Partition'"
echo "This can be set in parted or you can run with --reset-mbr"
exitclean
fi
if [ "$(echo $flags |grep -c boot)" = "0" ]; then
echo "Partition isn't marked bootable!"
echo "You can mark the partition as bootable with "
echo " # /sbin/parted $device"
echo " (parted) toggle N boot"
echo " (parted) quit"
exitclean
fi
}
checkFilesystem() {
dev=$1
TGTFS=$(/sbin/blkid -s TYPE -o value $dev || :)
if [ "$TGTFS" != "vfat" ] && [ "$TGTFS" != "msdos" ]; then
if [ "$TGTFS" != "ext2" ] && [ "$TGTFS" != "ext3" ] && [ "$TGTFS" != "ext4" ] && [ "$TGTFS" != "btrfs" ]; then
echo "Target filesystem ($dev:$TGTFS) must be vfat, ext[234] or btrfs"
exitclean
fi
fi
TGTLABEL=$(/sbin/blkid -s LABEL -o value $dev)
if [ "$TGTLABEL" != "LIVE" ]; then
if [ "$TGTFS" = "vfat" -o "$TGTFS" = "msdos" ]; then
/sbin/dosfslabel $dev LIVE
if [ $? -gt 0 ]; then
echo "dosfslabel failed on $dev, device not setup"
exitclean
fi
elif [ "$TGTFS" = "ext2" -o "$TGTFS" = "ext3" -o "$TGTFS" = "ext4" ]; then
/sbin/e2label $dev LIVE
if [ $? -gt 0 ]; then
echo "e2label failed on $dev, device not setup"
exitclean
fi
else
echo "Unknown filesystem type. Try setting its label to LIVE and re-running"
exitclean
fi
fi
# Use UUID if available
TGTUUID=$(/sbin/blkid -s UUID -o value $dev)
if [ -n "$TGTUUID" ]; then
TGTLABEL="UUID=$TGTUUID"
else
TGTLABEL="LABEL=LIVE"
fi
if [ "$TGTFS" = "vfat" -o "$TGTFS" = "msdos" ]; then
mountopts="-o shortname=winnt,umask=0077"
fi
}
checkSyslinuxVersion() {
if [ ! -x /usr/bin/syslinux ]; then
echo "You need to have syslinux installed to run this script"
exit 1
fi
check=($(syslinux --version 2>&1)) || :
if [[ 'syslinux' != $check ]]; then
SYSLINUXPATH=""
elif [ -n "$multi" ]; then
SYSLINUXPATH="$LIVEOS/syslinux"
else
SYSLINUXPATH="syslinux"
fi
}
checkMounted() {
dev=$1
if grep -q "^$dev " /proc/mounts ; then
echo "$dev is mounted, please unmount for safety"
exitclean
fi
if grep -q "^$dev " /proc/swaps; then
echo "$dev is in use as a swap device, please disable swap"
exitclean
fi
}
checkint() {
if ! test $1 -gt 0 2>/dev/null ; then
shortusage
exit 1
fi
}
if [ $(id -u) != 0 ]; then
echo "You need to be root to run this script"
exit 1
fi
detectsrctype() {
if [[ -e "$SRCMNT/Packages" ]]; then
echo "/Packages found, will copy source packages to target"
packages=1
fi
if [[ -e "$SRCMNT/LiveOS/squashfs.img" ]]; then
# LiveOS style boot image
srctype=live
return
fi
if [ -e $SRCMNT/images/install.img -o -e $SRCMNT/isolinux/initrd.img ]; then
if [ -n "$packages" ]; then
srctype=installer
else
srctype=netinst
fi
imgtype=install
if [ ! -e $SRCMNT/images/install.img ]; then
echo "$SRC uses initrd.img w/o install.img"
imgtype=initrd
fi
return
fi
echo "ERROR: $SRC does not appear to be a Live image or DVD installer."
exitclean
}
cp_p() {
strace -q -ewrite cp -- "${1}" "${2}" 2>&1 \
| awk '{
count += $NF
if (count % 10 == 0) {
percent = count / total_size * 100
printf "%3d%% [", percent
for (i=0;i<=percent;i++)
printf "="
printf ">"
for (i=percent;i<100;i++)
printf " "
printf "]\r"
}
}
END { print "" }' total_size=$(stat -c '%s' "${1}") count=0
}
copyFile() {
if [ -x /usr/bin/rsync ]; then
rsync --inplace -P "$1" "$2"
return
fi
if [ -x /usr/bin/gvfs-copy ]; then
gvfs-copy -p "$1" "$2"
return
fi
if [ -x /usr/bin/strace -a -x /bin/awk ]; then
cp_p "$1" "$2"
return
fi
cp "$1" "$2"
}
set -e
set -o pipefail
trap exitclean EXIT
shopt -s extglob
cryptedhome=1
keephome=1
homesizemb=0
swapsizemb=0
overlaysizemb=0
srctype=
imgtype=
packages=
LIVEOS=LiveOS
HOMEFILE="home.img"
if [[ "$*" =~ "--help" ]]; then
usage
fi
while [ $# -gt 2 ]; do
case $1 in
--help)
usage
;;
--noverify)
noverify=1
;;
--format)
format=1
;;
--msdos)
usemsdos=1
;;
--reset-mbr|--resetmbr)
resetmbr=1
;;
--efi|--mactel)
efi=1
;;
--skipcopy)
skipcopy=1
;;
--force)
force=1
;;
--xo)
xo=1
skipcompress=1
;;
--xo-no-home)
xonohome=1
;;
--timeout)
checkint $2
timeout=$2
shift
;;
--totaltimeout)
checkint $2
totaltimeout=$2
shift
;;
--extra-kernel-args)
kernelargs=$2
shift
;;
--multi)
multi=1
;;
--livedir)
LIVEOS=$2
shift
;;
--compress)
skipcompress=""
;;
--skipcompress)
skipcompress=1
;;
--swap-size-mb)
checkint $2
swapsizemb=$2
shift
;;
--overlay-size-mb)
checkint $2
overlaysizemb=$2
shift
;;
--home-size-mb)
checkint $2
homesizemb=$2
shift
;;
--crypted-home)
cryptedhome=1
;;
--unencrypted-home)
cryptedhome=""
;;
--delete-home)
keephome=""
;;
*)
echo "invalid arg -- $1"
shortusage
exit 1
;;
esac
shift
done
SRC=$(readlink -f "$1")
TGTDEV=$(readlink -f "$2")
if [ -z "$SRC" ]; then
echo "Missing source"
shortusage
exit 1
fi
if [ ! -b "$SRC" -a ! -f "$SRC" ]; then
echo "$SRC is not a file or block device"
shortusage
exit 1
fi
if [ -z "$TGTDEV" ]; then
echo "Missing target device"
shortusage
exit 1
fi
if [ ! -b "$TGTDEV" ]; then
echo "$TGTDEV is not a block device"
shortusage
exit 1
fi
if [ -z "$noverify" ]; then
# verify the image
echo "Verifying image..."
if ! checkisomd5 --verbose "$SRC"; then
echo "Are you SURE you want to continue?"
echo "Press Enter to continue or ctrl-c to abort"
read
fi
fi
# do some basic sanity checks.
checkMounted $TGTDEV
# FIXME: would be better if we had better mountpoints
SRCMNT=$(mktemp -d /media/srctmp.XXXXXX)
if [ -b "$SRC" ]; then
mount -o ro "$SRC" $SRCMNT || exitclean
elif [ -f "$SRC" ]; then
mount -o loop,ro "$SRC" $SRCMNT || exitclean
else
echo "$SRC is not a file or block device."
exitclean
fi
# Figure out what needs to be done based on the source image
detectsrctype
# Format the device
if [ -n "$format" -a -z "$skipcopy" ]; then
checkLVM $TGTDEV
if [ -n "$efi" ]; then
createGPTLayout $TGTDEV
elif [ -n "$usemsdos" -o ! -x /sbin/extlinux ]; then
createMSDOSLayout $TGTDEV
else
createEXTFSLayout $TGTDEV
fi
fi
checkFilesystem $TGTDEV
if [ -n "$efi" ]; then
checkGPT $TGTDEV
fi
checkSyslinuxVersion
# Because we can't set boot flag for EFI Protective on msdos partition tables
[ -z "$efi" ] && checkPartActive $TGTDEV
[ -n "$resetmbr" ] && resetMBR $TGTDEV
checkMBR $TGTDEV
if [ "$overlaysizemb" -gt 0 ]; then
if [ "$TGTFS" = "vfat" -a "$overlaysizemb" -gt 2047 ]; then
echo "Can't have an overlay of 2048MB or greater on VFAT"
exitclean
fi
LABEL=$(/sbin/blkid -s LABEL -o value $TGTDEV)
if [[ "$LABEL" =~ ( ) ]]; then
echo "The LABEL($LABEL) on $TGTDEV has spaces in it, which do not work with the overlay"
echo "You can re-format or use dosfslabel/e2fslabel to change it"
exitclean
fi
fi
if [ "$homesizemb" -gt 0 -a "$TGTFS" = "vfat" ]; then
if [ "$homesizemb" -gt 2047 ]; then
echo "Can't have a home overlay greater than 2048MB on VFAT"
exitclean
fi
fi
if [ "$swapsizemb" -gt 0 -a "$TGTFS" = "vfat" ]; then
if [ "$swapsizemb" -gt 2047 ]; then
echo "Can't have a swap file greater than 2048MB on VFAT"
exitclean
fi
fi
TGTMNT=$(mktemp -d /media/tgttmp.XXXXXX)
mount $mountopts $TGTDEV $TGTMNT || exitclean
trap exitclean SIGINT SIGTERM
if [ -f "$TGTMNT/$LIVEOS/$HOMEFILE" -a -n "$keephome" -a "$homesizemb" -gt 0 ]; then
echo "ERROR: Requested keeping existing /home and specified a size for /home"
echo "Please either don't specify a size or specify --delete-home"
exitclean
fi
if [ -n "$efi" ]; then
if [ -d $SRCMNT/EFI/BOOT ]; then
EFI_BOOT="/EFI/BOOT"
elif [ -d $SRCMNT/EFI/boot ]; then
EFI_BOOT="/EFI/boot"
else
echo "ERROR: This live image does not support EFI booting"
exitclean
fi
fi
# let's try to make sure there's enough room on the target device
if [[ -d $TGTMNT/$LIVEOS ]]; then
tbd=($(du -B 1M $TGTMNT/$LIVEOS))
if [[ -s $TGTMNT/$LIVEOS/$HOMEFILE ]] && [[ -n $keephome ]]; then
homesize=($(du -B 1M $TGTMNT/$LIVEOS/$HOMEFILE))
tbd=$((tbd - homesize))
fi
else
tbd=0
fi
if [[ live == $srctype ]]; then
targets="$TGTMNT/$SYSLINUXPATH"
[[ -n $efi ]] && targets+=" $TGTMNT$EFI_BOOT"
[[ -n $xo ]] && targets+=" $TGTMNT/boot/olpc.fth"
duTable=($(du -c -B 1M $targets 2> /dev/null || :))
tbd=$((tbd + ${duTable[*]: -2:1}))
fi
if [[ -n $skipcompress ]] && [[ -s $SRCMNT/LiveOS/squashfs.img ]]; then
if mount -o loop $SRCMNT/LiveOS/squashfs.img $SRCMNT; then
livesize=($(du -B 1M --apparent-size $SRCMNT/LiveOS/ext3fs.img))
umount $SRCMNT
if ((livesize > 2048)) && [[ vfat == $TGTFS ]]; then
echo "
An uncompressed image size greater than 2048 MB is not suitable
for a VFAT-formatted device. The compressed SquashFS will be
copied to the target device.
"
skipcompress=""
livesize=0
fi
else
echo "WARNING: --skipcompress or --xo was specified but the
currently-running kernel can not mount the SquashFS from the source
file to extract it. Instead, the compressed SquashFS will be copied
to the target device."
skipcompress=""
fi
fi
if [[ live == $srctype ]]; then
thisScriptpath=$(readlink -f "$0")
sources="$SRCMNT/LiveOS/ext3fs.img $SRCMNT/LiveOS/osmin.img"
[[ -z $skipcompress ]] && sources+=" $SRCMNT/LiveOS/squashfs.img"
sources+=" $SRCMNT/isolinux $SRCMNT/syslinux"
[[ -n $efi ]] && sources+=" $SRCMNT$EFI_BOOT"
[[ -n $xo ]] && sources+=" $SRCMNT/boot/olpc.fth"
duTable=($(du -c -B 1M "$thisScriptpath" $sources 2> /dev/null || :))
livesize=$((livesize + ${duTable[*]: -2:1}))
fi
freespace=($(df -B 1M --total $TGTDEV))
freespace=${freespace[*]: -2:1}
if [[ live == $srctype ]]; then
tba=$((overlaysizemb + homesizemb + livesize + swapsizemb))
if ((tba > freespace + tbd)); then
needed=$((tba - freespace - tbd))
printf "\n The live image + overlay, home, & swap space, if requested,
\r will NOT fit in the space available on the target device.\n
\r + Size of live image: %10s MiB\n" $livesize
(($overlaysizemb > 0)) && \
printf " + Overlay size: %16s\n" $overlaysizemb
(($homesizemb > 0)) && \
printf " + Home directory size: %9s\n" $homesizemb
(($swapsizemb > 0)) && \
printf " + Swap overlay size: %11s\n" $swapsizemb
printf " = Total requested space: %6s MiB\n" $tba
printf " - Space available: %12s\n" $((freespace + tbd))
printf " ==============================\n"
printf " Space needed: %15s MiB\n\n" $needed
printf " To fit the installation on this device,
\r free space on the target, or decrease the
\r requested size total by: %6s MiB\n\n" $needed
exitclean
fi
fi
# Verify available space for DVD installer
if [ "$srctype" = "installer" ]; then
if [ "$imgtype" = "install" ]; then
imgpath=images/install.img
else
imgpath=isolinux/initrd.img
fi
installimgsize=$(du -s -B 1M $SRCMNT/$imgpath | awk {'print $1;'})
tbd=0
if [ -e $TGTMNT/$imgpath ]; then
tbd=$(du -s -B 1M $TGTMNT/$imgpath | awk {'print $1;'})
fi
if [ -e "$TGTMNT/$(basename "$SRC")" ]; then
tbd=$(($tbd + $(du -s -B 1M "$TGTMNT/$(basename "$SRC")" | awk {'print $1;'})))
fi
echo "Size of $imgpath: $installimgsize"
echo "Available space: $((freespace + tbd))"
if (( installimgsize > ((freespace + tbd)) )); then
echo "ERROR: Unable to fit DVD image + install.img on available space on the target device."
exitclean
fi
fi
if [ -z "$skipcopy" ] && [ "$srctype" = "live" ]; then
if [ -d $TGTMNT/$LIVEOS -a -z "$force" ]; then
echo "Already set up as live image."
if [ -z "$keephome" -a -e $TGTMNT/$LIVEOS/$HOMEFILE ]; then
echo "WARNING: Persistent /home will be deleted!!!"
echo "Press Enter to continue or ctrl-c to abort"
read
else
echo "Deleting old OS in fifteen seconds..."
sleep 15
[ -e "$TGTMNT/$LIVEOS/$HOMEFILE" -a -n "$keephome" ] && mv $TGTMNT/$LIVEOS/$HOMEFILE $TGTMNT/$HOMEFILE
fi
rm -rf $TGTMNT/$LIVEOS
fi
fi
# Bootloader is always reconfigured, so keep these out of the if skipcopy stuff.
[ ! -d $TGTMNT/$SYSLINUXPATH ] && mkdir -p $TGTMNT/$SYSLINUXPATH
[ -n "$efi" -a ! -d $TGTMNT$EFI_BOOT ] && mkdir -p $TGTMNT$EFI_BOOT
# Live image copy
if [ "$srctype" = "live" -a -z "$skipcopy" ]; then
echo "Copying live image to target device."
[ ! -d $TGTMNT/$LIVEOS ] && mkdir $TGTMNT/$LIVEOS
[ -n "$keephome" -a -f "$TGTMNT/$HOMEFILE" ] && mv $TGTMNT/$HOMEFILE $TGTMNT/$LIVEOS/$HOMEFILE
if [ -n "$skipcompress" -a -f $SRCMNT/LiveOS/squashfs.img ]; then
mount -o loop $SRCMNT/LiveOS/squashfs.img $SRCMNT || exitclean
copyFile $SRCMNT/LiveOS/ext3fs.img $TGTMNT/$LIVEOS/ext3fs.img || {
umount $SRCMNT ; exitclean ; }
umount $SRCMNT
elif [ -f $SRCMNT/LiveOS/squashfs.img ]; then
copyFile $SRCMNT/LiveOS/squashfs.img $TGTMNT/$LIVEOS/squashfs.img || exitclean
elif [ -f $SRCMNT/LiveOS/ext3fs.img ]; then
copyFile $SRCMNT/LiveOS/ext3fs.img $TGTMNT/$LIVEOS/ext3fs.img || exitclean
fi
if [ -f $SRCMNT/LiveOS/osmin.img ]; then
copyFile $SRCMNT/LiveOS/osmin.img $TGTMNT/$LIVEOS/osmin.img || exitclean
fi
sync
fi
# Adjust syslinux sources for replication of installed images
# between filesystem types.
if [[ -d $SRCMNT/isolinux/ ]]; then
cp $SRCMNT/isolinux/* $TGTMNT/$SYSLINUXPATH
elif [[ -d $SRCMNT/syslinux/ ]]; then
cp $SRCMNT/syslinux/* $TGTMNT/$SYSLINUXPATH
if [[ -f $SRCMNT/syslinux/extlinux.conf ]]; then
mv $TGTMNT/$SYSLINUXPATH/extlinux.conf \
$TGTMNT/$SYSLINUXPATH/isolinux.cfg
elif [[ -f $SRCMNT/syslinux/syslinux.cfg ]]; then
mv $TGTMNT/$SYSLINUXPATH/syslinux.cfg $TGTMNT/$SYSLINUXPATH/isolinux.cfg
fi
fi
BOOTCONFIG=$TGTMNT/$SYSLINUXPATH/isolinux.cfg
# Set this to nothing so sed doesn't care
BOOTCONFIG_EFI=
if [ -n "$efi" ]; then
echo "Setting up $EFI_BOOT"
cp $SRCMNT$EFI_BOOT/* $TGTMNT$EFI_BOOT
# FIXME
# There is a problem here. On older LiveCD's the files are boot?*.conf
# They really should be renamed to BOOT?*.conf
# this is a little ugly, but it gets the "interesting" named config file
BOOTCONFIG_EFI=$TGTMNT$EFI_BOOT/+(BOOT|boot)?*.conf
rm -f $TGTMNT$EFI_BOOT/grub.conf
# On some images (RHEL) the BOOT*.efi file isn't in $EFI_BOOT, but is in
# the eltorito image, so try to extract it if it is missing
# test for presence of *.efi grub binary
if [ ! -f $TGTMNT$EFI_BOOT/+(BOOT|boot)?*.efi ]; then
if [ ! -x /usr/bin/dumpet ]; then
echo "No /usr/bin/dumpet tool found. EFI image will not boot."
echo "Source media is missing grub binary in /EFI/BOOT/*efi"
exitclean
else
# dump the eltorito image with dumpet, output is $SRC.1
dumpet -i "$SRC" -d
EFIMNT=$(mktemp -d /media/srctmp.XXXXXX)
mount -o loop "$SRC".1 $EFIMNT
if [ -f $EFIMNT$EFI_BOOT/+(BOOT|boot)?*.efi ]; then
cp $EFIMNT$EFI_BOOT/+(BOOT|boot)?*.efi $TGTMNT$EFI_BOOT
else
echo "No BOOT*.efi found in eltorito image. EFI will not boot"
umount $EFIMNT
rm "$SRC".1
exitclean
fi
umount $EFIMNT
rm "$SRC".1
fi
fi
fi
# DVD installer copy
if [ -z "$skipcopy" -a \( "$srctype" = "installer" -o "$srctype" = "netinst" \) ]; then
echo "Copying DVD image to target device."
mkdir -p $TGTMNT/images/
if [ "$imgtype" = "install" ]; then
for img in install.img updates.img product.img; do
if [ -e $SRCMNT/images/$img ]; then
copyFile $SRCMNT/images/$img $TGTMNT/images/$img || exitclean
fi
done
fi
fi
# Copy packages over.
# Before Fedora17 we could copy the .iso and setup a repo=
# F17 and later look for repodata on the source media.
# The presence of packages and LiveOS indicates F17 or later.
if [ -n "$packages" -a -z "$skipcopy" ]; then
if [ "$srctype" != "live" ]; then
echo "Copying $SRC to device"
copyFile "$SRC" "$TGTMNT/"
# Setup a repo= to point to the .iso
sed -i -e "s;initrd.img;initrd.img repo=hd:$TGTLABEL:/;g" $BOOTCONFIG
if [ -n "$efi" ]; then
sed -i -e "s;vmlinuz;vmlinuz repo=hd:$TGTLABEL:/;g" $BOOTCONFIG_EFI
fi
else
echo "Copying package data from $SRC to device"
rsync --inplace -rLDP --exclude EFI/ --exclude images/ --exclude isolinux/ \
--exclude TRANS.TBL --exclude LiveOS/ "$SRCMNT/" "$TGTMNT/"
fi
echo "Waiting for device to finish writing"
sync
fi
if [ "$srctype" = "live" ]; then
# Copy this installer script.
cp -fT "$thisScriptpath" $TGTMNT/$LIVEOS/livecd-iso-to-disk
chmod +x $TGTMNT/$LIVEOS/livecd-iso-to-disk &> /dev/null || :
# When the source is an installed Live USB/SD image, restore the boot config
# file to a base state before updating.
if [[ -d $SRCMNT/syslinux/ ]]; then
echo "Preparing boot config file."
sed -i -e "s/root=live:[^ ]*/root=live:CDLABEL=name/"\
-e "s/liveimg .* quiet/liveimg quiet/"\
$BOOTCONFIG $BOOTCONFIG_EFI
sed -i -e "s/^timeout.*$/timeout\ 100/"\
-e "/^totaltimeout.*$/d" $BOOTCONFIG
fi
fi
echo "Updating boot config file"
# adjust label and fstype
sed -i -e "s/CDLABEL=[^ ]*/$TGTLABEL/" -e "s/rootfstype=[^ ]*/rootfstype=$TGTFS/" -e "s/LABEL=[^ ]*/$TGTLABEL/" $BOOTCONFIG $BOOTCONFIG_EFI
if [ -n "$kernelargs" ]; then
sed -i -e "s;initrd.img;initrd.img ${kernelargs};" $BOOTCONFIG
if [ -n "$efi" ]; then
sed -i -e "s;vmlinuz;vmlinuz ${kernelargs};" $BOOTCONFIG_EFI
fi
fi
if [ "$LIVEOS" != "LiveOS" ]; then
sed -i -e "s;liveimg;liveimg live_dir=$LIVEOS;" $BOOTCONFIG $BOOTCONFIG_EFI
fi
# EFI images are in $SYSLINUXPATH now
if [ -n "$efi" ]; then
sed -i -e "s;/isolinux/;/$SYSLINUXPATH/;g" $BOOTCONFIG_EFI
sed -i -e "s;/images/pxeboot/;/$SYSLINUXPATH/;g" $BOOTCONFIG_EFI
sed -i -e "s;findiso;;g" $BOOTCONFIG_EFI
fi
# DVD Installer for netinst
if [ "$srctype" != "live" ]; then
if [ "$imgtype" = "install" ]; then
sed -i -e "s;initrd.img;initrd.img stage2=hd:$TGTLABEL:/images/install.img;g" $BOOTCONFIG
if [ -n "$efi" ]; then
sed -i -e "s;vmlinuz;vmlinuz stage2=hd:$TGTLABEL:/images/install.img;g" $BOOTCONFIG_EFI
fi
else
# The initrd has everything, so no stage2
sed -i -e "s;stage2=\S*;;g" $BOOTCONFIG $BOOTCONFIG_EFI
fi
fi
# Adjust the boot timeouts
if [ -n "$timeout" ]; then
sed -i -e "s/^timeout.*$/timeout\ $timeout/" $BOOTCONFIG
fi
if [ -n "$totaltimeout" ]; then
sed -i -e "/^timeout.*$/a\totaltimeout\ $totaltimeout" $BOOTCONFIG
fi
if [ "$overlaysizemb" -gt 0 ]; then
echo "Initializing persistent overlay file"
OVERFILE="overlay-$( /sbin/blkid -s LABEL -o value $TGTDEV )-$( /sbin/blkid -s UUID -o value $TGTDEV )"
if [ -z "$skipcopy" ]; then
if [ "$TGTFS" = "vfat" ]; then
# vfat can't handle sparse files
dd if=/dev/zero of=$TGTMNT/$LIVEOS/$OVERFILE count=$overlaysizemb bs=1M
else
dd if=/dev/null of=$TGTMNT/$LIVEOS/$OVERFILE count=1 bs=1M seek=$overlaysizemb
fi
fi
sed -i -e "s/liveimg/liveimg overlay=${TGTLABEL}/" $BOOTCONFIG $BOOTCONFIG_EFI
sed -i -e "s/\ ro\ /\ rw\ /" $BOOTCONFIG $BOOTCONFIG_EFI
fi
if [ "$swapsizemb" -gt 0 -a -z "$skipcopy" ]; then
echo "Initializing swap file"
dd if=/dev/zero of=$TGTMNT/$LIVEOS/swap.img count=$swapsizemb bs=1M
mkswap -f $TGTMNT/$LIVEOS/swap.img
fi
if [ "$homesizemb" -gt 0 -a -z "$skipcopy" ]; then
echo "Initializing persistent /home"
homesource=/dev/zero
[ -n "$cryptedhome" ] && homesource=/dev/urandom
if [ "$TGTFS" = "vfat" ]; then
# vfat can't handle sparse files
dd if=${homesource} of=$TGTMNT/$LIVEOS/$HOMEFILE count=$homesizemb bs=1M
else
dd if=/dev/null of=$TGTMNT/$LIVEOS/$HOMEFILE count=1 bs=1M seek=$homesizemb
fi
if [ -n "$cryptedhome" ]; then
loop=$(losetup -f)
losetup $loop $TGTMNT/$LIVEOS/$HOMEFILE
echo "Encrypting persistent /home"
while ! cryptsetup luksFormat -y -q $loop; do :; done;
echo "Please enter the password again to unlock the device"
while ! cryptsetup luksOpen $loop EncHomeFoo; do :; done;
mkfs.ext4 -j /dev/mapper/EncHomeFoo
tune2fs -c0 -i0 -ouser_xattr,acl /dev/mapper/EncHomeFoo
sleep 2
cryptsetup luksClose EncHomeFoo
losetup -d $loop
else
echo "Formatting unencrypted /home"
mkfs.ext4 -F -j $TGTMNT/$LIVEOS/$HOMEFILE
tune2fs -c0 -i0 -ouser_xattr,acl $TGTMNT/$LIVEOS/$HOMEFILE
fi
fi
# create the forth files for booting on the XO if requested
# we'd do this unconditionally, but you have to have a kernel that will
# boot on the XO anyway.
if [ -n "$xo" ]; then
echo "Setting up /boot/olpc.fth file"
args=$(grep "^ *append" $TGTMNT/$SYSLINUXPATH/isolinux.cfg |head -n1 |sed -e 's/.*initrd=[^ ]*//')
if [ -z "$xonohome" -a ! -f $TGTMNT/$LIVEOS/$HOMEFILE ]; then
args="$args persistenthome=mtd0"
fi
args="$args reset_overlay"
xosyspath=$(echo $SYSLINUXPATH | sed -e 's;/;\\;')
if [ ! -d $TGTMNT/boot ]; then
mkdir -p $TGTMNT/boot
fi
cat > $TGTMNT/boot/olpc.fth <<EOF
\ Boot script for USB boot
hex rom-pa fffc7 + 4 \$number drop h# 2e19 < [if]
patch 2drop erase claim-params
: high-ramdisk ( -- )
cv-load-ramdisk
h# 22c +lp l@ 1+ memory-limit umin /ramdisk - ffff.f000 and ( new-ramdisk-adr )
ramdisk-adr over /ramdisk move ( new-ramdisk-adr )
to ramdisk-adr
;
' high-ramdisk to load-ramdisk
[then]
: set-bootpath-dev ( -- )
" /chosen" find-package if ( phandle )
" bootpath" rot get-package-property 0= if ( propval$ )
get-encoded-string ( bootpath$ )
[char] \ left-parse-string 2nip ( dn$ )
dn-buf place ( )
then
then
" /sd" dn-buf count sindex 0>= if
" sd:"
else
" u:"
then
" BOOTPATHDEV" \$set-macro
;
set-bootpath-dev
" $args" to boot-file
" \${BOOTPATHDEV}$xosyspath\initrd0.img" expand$ to ramdisk
" \${BOOTPATHDEV}$xosyspath\vmlinuz0" expand$ to boot-device
unfreeze
boot
EOF
fi
if [ -z "$multi" ]; then
echo "Installing boot loader"
if [ -n "$efi" ]; then
# replace the ia32 hack
if [ -f "$TGTMNT$EFI_BOOT/BOOT.conf" ]; then
cp -f $TGTMNT$EFI_BOOT/BOOTia32.conf $TGTMNT$EFI_BOOT/BOOT.conf
fi
fi
# this is a bit of a kludge, but syslinux doesn't guarantee the API for its com32 modules :/
if [ -f $TGTMNT/$SYSLINUXPATH/vesamenu.c32 -a -f /usr/share/syslinux/vesamenu.c32 ]; then
cp /usr/share/syslinux/vesamenu.c32 $TGTMNT/$SYSLINUXPATH/vesamenu.c32
elif [ -f $TGTMNT/$SYSLINUXPATH/vesamenu.c32 -a -f /usr/lib/syslinux/vesamenu.c32 ]; then
cp /usr/lib/syslinux/vesamenu.c32 $TGTMNT/$SYSLINUXPATH/vesamenu.c32
elif [ -f $TGTMNT/$SYSLINUXPATH/menu.c32 -a -f /usr/share/syslinux/menu.c32 ]; then
cp /usr/share/syslinux/menu.c32 $TGTMNT/$SYSLINUXPATH/menu.c32
elif [ -f $TGTMNT/$SYSLINUXPATH/menu.c32 -a -f /usr/lib/syslinux/menu.c32 ]; then
cp /usr/lib/syslinux/menu.c32 $TGTMNT/$SYSLINUXPATH/menu.c32
fi
if [ "$TGTFS" == "vfat" -o "$TGTFS" == "msdos" ]; then
# syslinux expects the config to be named syslinux.cfg
# and has to run with the file system unmounted
mv $TGTMNT/$SYSLINUXPATH/isolinux.cfg $TGTMNT/$SYSLINUXPATH/syslinux.cfg
# deal with mtools complaining about ldlinux.sys
if [ -f $TGTMNT/$SYSLINUXPATH/ldlinux.sys ]; then
rm -f $TGTMNT/$SYSLINUXPATH/ldlinux.sys
fi
cleanup
if [ -n "$SYSLINUXPATH" ]; then
syslinux -d $SYSLINUXPATH $TGTDEV
else
syslinux $TGTDEV
fi
elif [ "$TGTFS" == "ext2" -o "$TGTFS" == "ext3" -o "$TGTFS" == "ext4" -o "$TGTFS" == "btrfs" ]; then
# extlinux expects the config to be named extlinux.conf
# and has to be run with the file system mounted
mv $TGTMNT/$SYSLINUXPATH/isolinux.cfg $TGTMNT/$SYSLINUXPATH/extlinux.conf
extlinux -i $TGTMNT/$SYSLINUXPATH
# Starting with syslinux 4 ldlinux.sys is used on all file systems.
if [ -f "$TGTMNT/$SYSLINUXPATH/extlinux.sys" ]; then
chattr -i $TGTMNT/$SYSLINUXPATH/extlinux.sys
elif [ -f "$TGTMNT/$SYSLINUXPATH/ldlinux.sys" ]; then
chattr -i $TGTMNT/$SYSLINUXPATH/ldlinux.sys
fi
cleanup
fi
else
# we need to do some more config file tweaks for multi-image mode
sed -i -e "s;kernel vm;kernel /$LIVEOS/syslinux/vm;" $TGTMNT/$SYSLINUXPATH/isolinux.cfg
sed -i -e "s;initrd=i;initrd=/$LIVEOS/syslinux/i;" $TGTMNT/$SYSLINUXPATH/isolinux.cfg
mv $TGTMNT/$SYSLINUXPATH/isolinux.cfg $TGTMNT/$SYSLINUXPATH/syslinux.cfg
cleanup
fi
echo "Target device is now set up with a Live image!"
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