#!/bin/bash # version date: 2010-07-19 23:35:09 -0400 # Convert a Live media image so that it's bootable off of a USB/SD stick # Copyright 2007 Red Hat, Inc. # Jeremy Katz # # overlay/persistence enhancements by Douglas McClendon # GPT+MBR hybrid enhancements by Stewart Adam # # 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:$PATH export \ PS4='+(${LINENO}:${BASH_SOURCE}:${EUID}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }' shortusage() { echo " SYNTAX livecd-iso-to-disk [--help] [--format] [--reset-mbr] [--efi] [--extra-kernel-args ] [--multi] [--livedir ] [--compressed] [--skipcompress] [--swap-size-mb ] [--xo] [--xo-no-home] [--noverify] [--skipcopy] [--overlay-size-mb ] [--copy-overlay] [--builder-message ] [--releasefile ] [--delete-home] [--force] [--home-size-mb ] [--copy-home] [--encrypted-home] [--unencrypted-home] (Enter livecd-iso-to-disk --help on the command line for more information.)" } usage() { echo " " shortusage echo " livecd-iso-to-disk - Convert a Live CD/DVD/USB image so that it's bootable off of a USB/SD stick The script may be run in simplest form with just the two arguments: 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 would reference the 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 lose important data! 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 source, LiveOS image and a target, storage device. The source image may be either a LiveOS .iso file, the currently-running LiveOS image, or the device node reference for the mount point of an installed LiveOS image. If the operating system supports persistent overlays for saving system changes, a fresh overlay, or a copy of the source overlay may be included with the installation. This enables one to easily prepare customized LiveOS images for redistribution. Unless you request the --format option, the installation does not destroy data outside of the LiveOS, syslinux, EFI, & boot 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- file, which--one should note--always grow 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.) To conserve the unrecoverable, overlay file space, one may specify a persistent home folder, which will exist 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 storage space. The home.img file is also convenient for backing up or swapping user account files. Customized images are made by copying the source image filesystems to the bootable primary volume partition of another USB/SD device and adjusting the Syslinux boot configuration and overlay files to reflect the new device identification. OPTIONS --help Displays usage information and exits. --format Formats the target device and creates an MS-DOS partition table (or GPT partition table if --efi is passed). --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. --efi Creates a GPT partition table when --format is passed, and install a hybrid EFI/MBR bootloader on the disk. This is necessary for most Intel Macs. --extra-kernel-args Specifies additional kernel arguments, , 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 enabling multi image copies (avoiding configuration of the boot files for an arbitrary image). --livedir Used with multi image copies to designate the directory for the particular image. --compressed (default state for the operating system files) Allows the default compressed SquashFS filesystem image to be copied. Has no effect on an already-expanded filesystem copy. --skipcompress (default for when option --xo is specified) Installs the operating system into the /LiveOS/ext3fs.img filesystem image file. --xo Used to prepare an image for the OLPC XO-1 laptop and its compressed, JFFS2 filesystem. Do not use the following options with --xo: --overlay-size-mb , home-size-mb , --delete-home, --copy-home, --copy-overlay, --compressed --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 NAND flash storage. --noverify Disables the image validation process which occurs before the image is installed. When this option is enabled, the image is not verified before loading on the USB storage device. --skipcopy Skips the copy of the live image to the target stick, bypassing the actions of the --format, --overlay-size-mb, --copy-overlay, --home-size-mb, --copy-home & --swap-size-mb options, if present on the command line. (The --skipcopy option is used while testing the script, in order to avoid repeated and lengthy copy commands, or to repair boot configuration files.) --swap-size-mb Sets up a swap file of megabytes (integer values only) on the target device. --overlay-size-mb This option sets the overlay size in megabytes (integer values only). The overlay is additional 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- 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 issueing the dmsetup status command in a terminal session of a running LiveOS image.) To conserve this unrecoverable overlay file space, one may specify a persistent home folder with the --home-size-mb option (see below). The target storage device must have enough free space for the image and the overlay. There is a maximum of 2047 MB for vfat- formatted devices. If there is insufficient room on your device, you will be given information to adjust your settings. --copy-overlay This option allows one to copy the persistent overlay from one live image to the new image. Changes already made in the source image will be propagated to the new installation. WARNING: User sensitive information such as password cookies and application or user data will be copied to the new image! Scrub this information before using this option. --build-message This option allows one to update release files to show the non pristine status of an image through the build-message, and copydate. The default message is \"by someone, copied on\" which will be appended to the standard \"Welcome to !\" (skipping the '!') and followed by the copy date in 'dd MMM yyyy' format as found in the /syslinux/syslinux.cfg or corresponding boot configuration file. --releasefile This option allows one to update a particular release file to show the non-pristine status of an image through the build-message, and copydate. The default message is \"by someone, copied on\" which will prepended the designated file with the line, \"Remix of \" followed by the copy date in 'dd MMM yyyy' format. --delete-home Must be explicitly selected when options --home-size-mb or --copy-home are selected and there is an existing persistent home directory on the image. --home-size-mb Sets the home directory size in megabytes (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 storage space. The target storage device must have enough free space for the image, any overlay, and the home directory. Note that --delete-home must also be selected to replace an existing persistent home with a new, empty one. There is a maximum of 2047 MB for vfat-formatted devices. If there is insufficient room on your device, you will be given information to adjust your settings. --copy-home This option allows one to copy a persistent home folder from one LiveOS image to the target image. Changes already made in the source image home directory will be propagated to the new image. WARNING: User sensitive information such as password cookies and user and application data will be copied to the new image! Scrub this information before using this option. --force This option allows one to bypass the user confirmation for the deletion of the LiveOS directory on the target device, if one exists. --encrypted-home (default that only applies to new, home-size-mb requests) Allows the default option to encrypt a new, persistent home directory. Has no effect on a copied home directory. --unencrypted-home Prevents the default option to encrypt a new, persistent home directory. Has no effect on a copied 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 } TMPDIR=${TMPDIR:-/tmp} cleanup() { sleep 2 [[ -d $SRCMNT ]] && umount $SRCMNT && rmdir $SRCMNT [[ -d $TGTMNT ]] && umount $TGTMNT && rmdir $TGTMNT } exitclean() { echo "Cleaning up to exit..." cleanup exit 1 } getdisk() { DEV=$1 if [[ $DEV =~ /dev/loop* ]]; then device="$DEV" return fi p=$(udevadm info -q path -n $DEV) if [ -e /sys/$p/device ]; then device=$(basename /sys/$p) else device=$(basename $(readlink -f /sys/$p/../)) fi if [[ ! -e /sys/block/$device ]] || [[ ! -e /dev/$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 [[ $DEV =~ /dev/loop* ]]; then return fi getdisk $1 # if efi, we need to use the hybrid MBR if [[ -n $efi ]]; then if [[ -f /usr/lib/syslinux/gptmbr.bin ]]; then gptmbr='/usr/lib/syslinux/gptmbr.bin' elif [[ -f /usr/share/syslinux/gptmbr.bin ]]; then gptmbr='/usr/share/syslinux/gptmbr.bin' else echo "Could not find gptmbr.bin (syslinux)." exitclean fi # our magic number is LBA-2, offset 16 - (512+512+16)/$bs dd if=$device bs=16 skip=65 count=1 | cat $gptmbr - > $device 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 [[ $DEV =~ /dev/loop* ]]; 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 echo -e "MBR appears to be blank. \rDo you want to replace the MBR on this device?\n \rPress Enter to continue, or Ctrl-c to abort." read 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 [[ $dev =~ /dev/loop* ]]; then return fi if [[ $(/sbin/fdisk -l $device 2>/dev/null | \ grep $dev | awk {'print $2;'}) != * ]]; then echo -e "Partition isn't marked bootable! \rYou can mark the partition as bootable with \r # /sbin/parted $device \r (parted) toggle N boot \r (parted) quit" exitclean fi } checkLVM() { dev=$1 if [[ -x /sbin/pvs ]] && \ [[ $(/sbin/pvs -o vg_name --noheadings $dev* 2>/dev/null) ]]; then echo -e "Device, $dev, contains a volume group and cannot be formated! \rYou can remove the volume group using vgremove." exitclean fi return 0 } createGPTLayout() { dev=$1 getdisk $dev echo -e "WARNING: THIS WILL DESTROY ANY DATA ON $device!!! \rPress Enter to continue, or Ctrl-c to abort." read umount ${device}? &> /dev/null /sbin/parted --script $device mklabel gpt partinfo=$(LC_ALL=C /sbin/parted --script -m $device "unit b print" | \ grep ^$device:) size=$(echo $partinfo | cut -d : -f 2 | sed -e 's/B$//') /sbin/parted --script $device unit b mkpart '"EFI System Partition"'\ fat32 17408 $(($size - 17408)) set 1 boot on TGTDEV=${device}1 # Sometimes automount can be _really_ annoying. echo "Waiting for devices to settle..." /sbin/udevadm settle sleep 5 umount $TGTDEV &> /dev/null /sbin/mkdosfs -n LIVE $TGTDEV TGTLABEL="UUID=$(/sbin/blkid -s UUID -o value $TGTDEV)" } createMSDOSLayout() { dev=$1 getdisk $dev echo -e "WARNING: THIS WILL DESTROY ANY DATA ON $device!!!\n \rPress Enter to continue, or Ctrl-c to abort." read umount ${device}? &> /dev/null /sbin/parted --script $device mklabel msdos partinfo=$(LC_ALL=C /sbin/parted --script -m $device "unit b print" | \ grep ^$device:) size=$(echo $partinfo | cut -d : -f 2 | sed -e 's/B$//') /sbin/parted --script $device unit b mkpart primary fat32 17408 \ $(($size - 17408)) set 1 boot on TGTDEV=${device}1 # Sometimes automount can be _really_ annoying. echo "Waiting for devices to settle..." /sbin/udevadm settle sleep 5 umount $TGTDEV &> /dev/null /sbin/mkdosfs -n LIVE $TGTDEV TGTLABEL="UUID=$(/sbin/blkid -s UUID -o value $TGTDEV)" } checkGPT() { dev=$1 getdisk $dev if [[ $(/sbin/fdisk -l $device 2>/dev/null | grep -c GPT) -eq 0 ]]; then echo -e "EFI boot requires a GPT partition table. \rThis can be done manually, or you can run with --format" exitclean fi partinfo=$(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 -e "Partition name must be 'EFI System Partition' \rThis 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! \rYou can mark the partition as bootable with \r # /sbin/parted $device \r (parted) toggle N boot \r (parted) quit" exitclean fi } checkFilesystem() { dev=$1 TGTFS=$(/sbin/blkid -s TYPE -o value $dev) if [[ $TGTFS != vfat && $TGTFS != msdos && \ $TGTFS != ext2 && $TGTFS != ext3 ]]; then echo "Target filesystem must be vfat or ext[23]." exitclean fi TGTLABEL=$(/sbin/blkid -s UUID -o value $dev) if [[ -n $TGTLABEL ]]; then TGTLABEL="UUID=$TGTLABEL" else TGTLABEL=$(/sbin/blkid -s LABEL -o value $dev) if [[ -n $TGTLABEL ]]; then TGTLABEL="LABEL=$TGTLABEL" else echo "A filesystem label or UUID is needed for your target device." if [[ $TGTFS = vfat || $TGTFS = msdos ]]; then echo "Label can be set with /sbin/dosfslabel" elif [[ $TGTFS = ext2 || $TGTFS = ext3 ]]; then echo "Label can be set with /sbin/e2label" fi exitclean fi fi if [[ $TGTFS = vfat || $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 if ! syslinux 2>&1 | grep -qe -d; 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 [[ ! $1 -gt 0 ]] 2>/dev/null ; then shortusage echo "ERROR: $1 is not a valid value." 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/LiveOS/squashfs.img || \ -e $SRCMNT/LiveOS/ext3fs.img ]]; then srctype=live return fi if [[ -e $SRCMNT/images/install.img ]]; then srctype=installer return fi echo "ERROR: $SRC does not appear to be a Live image or DVD installer." exitclean } cryptedhome=1 keephome=1 homesizemb=0 copyhome= copyhomesize=0 swapsizemb=0 overlaysizemb=0 copyoverlaysize=0 buildermessage= buildmessage="by someone, copied on" srctype= LIVEOS=LiveOS HOMEFILE="home.img" while [[ $# -gt 2 ]]; do case $1 in --help) usage ;; --overlay-size-mb) checkint $2 overlaysizemb=$2 shift ;; --copy-overlay) copyoverlay=1 ;; --home-size-mb) checkint $2 homesizemb=$2 shift ;; --copy-home) copyhome=1 cryptedhome="" ;; --builder-message) buildermessage=1 buildmessage=$2 shift ;; --releasefile) buildermessage=1 releasefile=$2 shift ;; --swap-size-mb) checkint $2 swapsizemb=$2 shift ;; --encrypted-home|--crypted-home) cryptedhome=1 ;; --unencrypted-home) cryptedhome="" ;; --delete-home) keephome="" ;; --noverify) noverify=1 ;; --reset-mbr|--resetmbr) resetmbr=1 ;; --efi|--mactel) efi=1 ;; --format) format=1 ;; --skipcopy) skipcopy=1 ;; --xo) xo=1 skipcompress=1 ;; --xo-no-home) xonohome=1 ;; --compressed|--compress) skipcompress="" ;; --skipcompress) skipcompress=1 ;; --extra-kernel-args) kernelargs=$2 shift ;; --force) force=1 ;; --livedir) LIVEOS=$2 shift ;; --multi) multi=1 ;; *) shortusage echo -e "Invalid argument: $1 \n" exit 1 ;; esac shift done SRC=$(readlink -f "$1") TGTDEV=$(readlink -f "$2") if [[ -z $SRC ]]; then shortusage echo -e "ERROR: You haven't specified a source image in . Please adjust this command requirement.\n" exit 1 fi if [[ ! -b $SRC && ! -f $SRC ]]; then shortusage echo -e "ERROR: $SRC is not a valid source image. Please adjust this command requirement.\n" exit 1 fi # FIXME: If --format is given, we shouldn't care and just use /dev/foo1 if [[ -z $TGTDEV || ! -b $TGTDEV ]]; then shortusage echo -e "ERROR: $TGTDEV is not a valid target. Please adjust this command requirement.\n" exit 1 fi # do some basic sanity checks. checkMounted $TGTDEV if [[ -n $format ]]; then checkLVM $TGTDEV # checks for a valid filesystem if [[ -n $efi ]]; then createGPTLayout $TGTDEV else createMSDOSLayout $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 [[ $SRC = $TGTDEV ]]; then echo -e "Source and destination images are on the same device partition. \rPlease check your inputs.\n" exitclean fi if [[ $overlaysizemb -gt 0 && $TGTFS = vfat ]]; then if [[ $overlaysizemb -gt 2047 ]]; then echo "A persistent overlays may not exceed 2047 MB on VFAT filesystems. " exitclean fi fi if [[ $homesizemb -gt 0 && $TGTFS = vfat ]]; then if [[ $homesizemb -gt 2047 ]]; then echo -e "A home.img file may not exceed 2047 MB on VFAT filesystems.\n" exitclean fi fi if [[ $swapsizemb -gt 0 && $TGTFS = vfat ]]; then if [[ $swapsizemb -gt 2047 ]]; then echo -e "A swap file may not exceed 2047 MB on VFAT filesystems.\n" exitclean fi fi # FIXME: would be better if we had better mountpoints SRCMNT=$(mktemp -d /media/srctmp.XXXXXX) mount -o loop,ro "$SRC" $SRCMNT || exitclean TGTMNT=$(mktemp -d /media/tgtdev.XXXXXX) mount $mountopts $TGTDEV $TGTMNT || exitclean trap exitclean SIGINT SIGTERM detectsrctype SOURCEOVERLAY="overlay-$( /sbin/blkid -s LABEL -o value $SRC )\ -$( /sbin/blkid -s UUID -o value $SRC )" TGTOVERFILE="overlay-$( /sbin/blkid -s LABEL -o value $TGTDEV )\ -$( /sbin/blkid -s UUID -o value $TGTDEV )" if [[ -d $SRCMNT/LiveOS ]]; then check=$SRCMNT/LiveOS else check=$SRCMNT fi if [[ ! -f $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome ]]; then echo -e "ERROR: There appears to be no persistent /home.img on the source Please check your inputs.\n" exitclean fi if [[ -f $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome && -n $cryptedhome ]]; then echo -e "WARNING: You asked for an --encrypted-home and to copy the source's /home.img to your target device. The --encrypted-home option is only available for newly-created /home directories. (If the /home.img on the source is encrypted, that feature will carry over.)\n Press Enter to continue, or Ctrl-c to abort.\n" read fi if [[ -f $TGTMNT/$LIVEOS/$HOMEFILE && -n $keephome && $homesizemb -gt 0 ]]; then echo -e "ERROR: The target has an existing /home and you requested that a new /home.img be created. To remove an existing /home on the target, you must explicitly specify --delete-home. Please adjust your home options.\n" exitclean fi if [[ -f $TGTMNT/$LIVEOS/$HOMEFILE && -n $keephome && -n $copyhome && \ -s $SRCMNT/$LIVEOS/$HOMEFILE ]]; then echo -e "ERROR: The target has an existing /home and you requested that one from the source be copied to the target device. To remove an existing /home on the target, you must explicitly specify --delete-home. Please adjust your home options.\n" exitclean fi if [[ -f $SRCMNT/$LIVEOS/$SOURCEOVERLAY && -n $copyoverlay && \ $overlaysizemb -gt 0 ]]; then echo "ERROR: You requested a new overlay AND a copy of one from the source. Please request only one of these options. " exitclean fi if [[ -s $SRCMNT/$LIVEOS/$HOMEFILE && -n $copyhome && $homesizemb -gt 0 ]]; then echo -e "ERROR: You requested a new home AND a copy of one from the source. Please request only one of these options.\n" exitclean fi if [[ ! -s $check/$SOURCEOVERLAY && -n $copyoverlay ]]; then echo "NOTICE: There appears to be no persistent overlay file on this image. Would you LIKE to continue with NO persistent overlay? Press Enter to continue, or Ctrl-c to abort. " read copyoverlay="" fi if [[ ! -s $check/$HOMEFILE && -n $copyhome && $overlaysizemb -gt 0 ]]; then echo -e "NOTICE: There appears to be no persistent /home.img on this image. Would you LIKE to continue with just the persistent overlay?\n Press Enter to continue, or Ctrl-c to abort.\n" read copyhome="" fi if [[ -n $efi && ! -d $SRCMNT/EFI/boot ]]; then echo -e "ERROR: This live image does not support EFI booting.\n" exitclean fi # let's try to make sure there's enough room on the stick if [[ -d $TGTMNT/$LIVEOS ]]; then tbd=$(du -s -B 1M $TGTMNT/$LIVEOS | awk {'print $1;'}) [[ -f $TGTMNT/$LIVEOS/$HOMEFILE ]] && \ homesz=$(du -s -B 1M $TGTMNT/$LIVEOS/$HOMEFILE | awk {'print $1;'}) [[ -n $homesz && -n $keephome ]] && tbd=$(($tbd - $homesz)) [[ -f $TGTMNT/$LIVEOS/$TGTOVERFILE ]] && \ oversz=$(du -s -B 1M $TGTMNT/$LIVEOS/$TGTOVERFILE | awk {'print $1;'}) [[ -n $oversz && -n $keepoverlay ]] && tbd=$(($tbd - $oversz)) else tbd=0 fi livesize=$(du -s -B 1M $check | awk {'print $1;'}) if [[ -n $skipcompress ]]; then if [[ -e $SRCMNT/LiveOS/squashfs.img ]]; then if mount -o loop $SRCMNT/LiveOS/squashfs.img $SRCMNT; then livesize=$(du -s -B 1M $SRCMNT/LiveOS/ext3fs.img | awk {'print $1;'}) umount $SRCMNT 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 fi if [[ -s $check/$SOURCEOVERLAY ]]; then copyoverlaysize=$(du -s -B 1M $check/$SOURCEOVERLAY | awk {'print $1;'}) fi if [[ -s $check/$HOMEFILE ]]; then copyhomesize=$(du -s -B 1M $check/$HOMEFILE | awk {'print $1;'}) fi if [[ -s $check/ext3fs.img ]]; then livesize=$(du -s -B 1M $check/ext3fs.img | awk {'print $1;'}) else livesize=$(($livesize - $copyoverlaysize - $copyhomesize)) [[ -z $copyoverlay ]] && copyoverlaysize=0 [[ -z $copyhome ]] && copyhomesize=0 fi free=$(df -B1M $TGTDEV |tail -n 1 |awk {'print $4;'}) if [[ $srctype = live ]]; then tba=$(($overlaysizemb + $copyoverlaysize + $homesizemb + $copyhomesize\ + $livesize + $swapsizemb)) if [ $tba -gt $(($free + $tbd)) ]; then echo -e " 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: $livesize MB" [[ $overlaysizemb -gt 0 ]] && \ echo "+ Overlay size: $overlaysizemb MB" [[ $copyoverlaysize -gt 0 ]] && \ echo "+ Copy overlay size: $copyoverlaysize MB" [[ $homesizemb -gt 0 ]] && \ echo "+ Home directory size: $homesizemb MB" [[ $copyhomesize -gt 0 ]] && \ echo "+ Copy home directory size: $copyhomesize MB" [[ $swapsizemb -gt 0 ]] && \ echo "+ Swap overlay size: $swapsizemb MB" echo "---------------------------" echo "= Requested: $tba MB" echo "- Available: $(($free + $tbd)) MB" echo "---------------------------" echo -e " To fit on this device, \r= free or decrease the requested size total by: $(($tba - $free -\ $tbd)) MB" exitclean fi fi # Verify available space for DVD installer if [[ $srctype = installer ]]; then srcsize=$(du -s -B 1M $SRC | awk {'print $1;'}) installimgsize=$(du -s -B 1M $SRCMNT/images/install.img | awk {'print $1;'}) tbd=0 if [[ -e $TGTMNT/images/install.img ]]; then tbd=$(du -s -B 1M $TGTMNT/images/install.img | awk {'print $1;'}) fi if [[ -e $TGTMNT/$(basename $SRC) ]]; then tbd=$(($tbd + $(du -s -B 1M $TGTMNT/$(basename $SRC) | \ awk {'print $1;'}))) fi echo -e "Size of DVD image: $srcsize MB \rSize of install.img: $installimgsize MB \rAvailable space: $(($free + $tbd)) MB" if [[ $(($srcsize + $installimgsize)) -gt $(($free + $tbd)) ]]; then echo -e "ERROR: Unable to fit the DVD image + install.img in the \r available space on the target device.\n" exitclean fi fi # this is delayed until now so other goof-ups may be corrected before waiting # through the md5 verification. if [[ -z $noverify ]]; then # verify the image echo "Verifying image..." checkisomd5 --verbose "$SRC" if [[ $? -ne 0 ]]; then echo -e "Are you SURE you want to continue?\n \rPress Enter to continue, or Ctrl-c to abort.\n" read fi fi if [[ -z $skipcopy && $srctype = live ]]; then if [[ -d $TGTMNT/$LIVEOS && -z $force ]]; then echo "Already set up as live image." if [[ -z $keephome && -e $TGTMNT/$LIVEOS/$HOMEFILE ]]; then echo -e "WARNING: Persistent /home will be deleted!!!\n \rPress Enter to continue, or Ctrl-c to abort.\n" read else echo "Deleting old OS in fifteen seconds..." sleep 15 [[ -e $TGTMNT/$LIVEOS/$HOMEFILE && -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 && ! -d $TGTMNT/EFI/boot ]] && mkdir -p $TGTMNT/EFI/boot # Live image copy if [[ -z $skipcopy && $srctype = live ]]; then echo "Copying live image to target device." [[ ! -d $TGTMNT/$LIVEOS ]] && mkdir $TGTMNT/$LIVEOS [[ -n $keephome && -f $TGTMNT/$HOMEFILE ]] && \ mv $TGTMNT/$HOMEFILE $TGTMNT/$LIVEOS/$HOMEFILE if [[ -n $skipcompress && -f $SRCMNT/LiveOS/squashfs.img ]]; then mount -o loop $SRCMNT/LiveOS/squashfs.img $SRCMNT || exitclean cp $SRCMNT/LiveOS/ext3fs.img $TGTMNT/$LIVEOS/ext3fs.img || \ { umount $SRCMNT ; exitclean ;} umount $SRCMNT elif [[ -f $SRCMNT/LiveOS/squashfs.img ]]; then cp $SRCMNT/LiveOS/squashfs.img $TGTMNT/$LIVEOS/squashfs.img || exitclean elif [[ -f $SRCMNT/LiveOS/ext3fs.img ]]; then cp $SRCMNT/LiveOS/ext3fs.img $TGTMNT/$LIVEOS/ext3fs.img || exitclean fi if [[ -f $SRCMNT/LiveOS/osmin.img ]]; then cp $SRCMNT/LiveOS/osmin.img $TGTMNT/$LIVEOS/osmin.img || exitclean fi if [[ -n $copyoverlay && -s $SRCMNT/$LIVEOS/$SOURCEOVERLAY ]]; then cp $SRCMNT/$LIVEOS/$SOURCEOVERLAY $TGTMNT/$LIVEOS/$TGTOVERFILE || \ exitclean echo "Copied overlay." fi if [[ -n $copyhome && -s $SRCMNT/$LIVEOS/$HOMEFILE ]]; then cp $SRCMNT/$LIVEOS/$HOMEFILE $TGTMNT/$LIVEOS/$HOMEFILE || exitclean echo "Copied home." fi fi # Copy this installer script. Provide the means for the new or refreshed # installation to replicate itself. thisScriptPath=$(readlink -f $0) cp -fTp $thisScriptPath $TGTMNT/$LIVEOS/livecd-iso-to-disk &> /dev/null # DVD installer copy if [[ -z $skipcopy && $srctype = installer ]]; then echo "Copying DVD image to target device." mkdir -p $TGTMNT/images/ cp $SRCMNT/images/install.img $TGTMNT/images/install.img || exitclean cp $SRC $TGTMNT/ 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 cp $SRCMNT/EFI/boot/* $TGTMNT/EFI/boot # this is a little ugly, but it gets the "interesting" named config file BOOTCONFIG_EFI=$TGTMNT/EFI/boot/boot?*.conf rm -f $TGTMNT/EFI/boot/grub.conf fi # restore boot config file to base state before updating sed -i -e "s/root=[^ ]*/root=CDLABEL=name/"\ -e "s/liveimg .* quiet/liveimg quiet/" $BOOTCONFIG $BOOTCONFIG_EFI echo "Updating boot config file." # adjust label and fstype sed -i -e "s/CDLABEL=[^ ]*/$TGTLABEL/"\ -e "s/rootfstype=[^ ]*/rootfstype=$TGTFS/"\ -e "s/LABEL=[^ ]*/$TGTLABEL/"\ $BOOTCONFIG $BOOTCONFIG_EFI if [[ -n $kernelargs ]]; then sed -i -e "s/liveimg/liveimg ${kernelargs}/" $BOOTCONFIG $BOOTCONFIG_EFI fi if [[ $LIVEOS != LiveOS ]]; then sed -i -e "s;liveimg;liveimg live_dir=$LIVEOS;" $BOOTCONFIG $BOOTCONFIG_EFI fi # DVD Installer if [[ $srctype = installer ]]; then sed -i -e "s;initrd=initrd.img;initrd=initrd.img repo=hd:$TGTLABEL:/;g"\ $BOOTCONFIG $BOOTCONFIG_EFI sed -i -e "s;stage2=\S*;;g" $BOOTCONFIG $BOOTCONFIG_EFI fi if [[ -z $skipcopy && $overlaysizemb -gt 0 ]]; then echo "Initializing persistent overlay file." if [[ $TGTFS = vfat ]]; then # vfat can't handle sparse files dd if=/dev/zero of=$TGTMNT/$LIVEOS/$TGTOVERFILE\ count=$overlaysizemb bs=1M else dd if=/dev/null of=$TGTMNT/$LIVEOS/$TGTOVERFILE\ count=1 bs=1M seek=$overlaysizemb fi fi # include these with --skipcopy boot reconfiguration to support boot file repair if [[ -s $TGTMNT/$LIVEOS/$TGTOVERFILE ]]; then sed -i -e "s/liveimg/liveimg overlay=${TGTLABEL}/"\ $BOOTCONFIG $BOOTCONFIG_EFI sed -i -e "s/\ ro\ /\ rw\ /" $BOOTCONFIG $BOOTCONFIG_EFI fi if [[ -z $skipcopy && $swapsizemb -gt 0 ]]; then echo "Initializing swap file." dd if=/dev/zero of=$TGTMNT/$LIVEOS/swap.img count=$swapsizemb bs=1M mkswap -f $TGTMNT/$LIVEOS/swap.img fi if [[ -z $skipcopy && $homesizemb -gt 0 ]]; 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 setupworked=1 until [[ ${setupworked} == 0 ]]; do echo "Encrypting persistent /home." cryptsetup luksFormat -y -q $loop setupworked=$? done setupworked=1 until [[ ${setupworked} == 0 ]]; do echo "Please enter the password again to unlock the device." cryptsetup luksOpen $loop EncHomeFoo setupworked=$? done mke2fs -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." mke2fs -F -j $TGTMNT/$LIVEOS/$HOMEFILE tune2fs -c0 -i0 -ouser_xattr,acl $TGTMNT/$LIVEOS/$HOMEFILE fi fi # Update release files to show the non pristine status, build-message, and # copydate. if [[ -n $buildermessage && -f $BOOTCONFIG ]]; then echo " Updating boot config file." releasefile0=/etc/fedora-release # FIXME: adjust menu title / release title - fragile to changes in Welcome # message and EFI format existingTitle=$(grep "menu title" $BOOTCONFIG | awk '{print $5}') existingTitle="${existingTitle%\!}" cloneDate=$(date '+%d %b %Y') cp -fTp $BOOTCONFIG ${BOOTCONFIG}.bak [[ -f $BOOTCONFIG_EFI ]] && cp -fTp $BOOTCONFIG_EFI ${BOOTCONFIG_EFI}.bak sed -i -e "s/title Welcome to .*/\ title Welcome to ${existingTitle} $buildmessage ${cloneDate}/" \ $BOOTCONFIG $BOOTCONFIG_EFI releaseTitle="Remix of ${existingTitle} $buildmessage $cloneDate" if [[ -f $releasefile0 ]]; then cp -fTp $releasefile0 ${releasefile0}.bak echo -e " $releaseTitle" >> $releasefile0 fi if [[ -f $releasefile ]]; then cp -fTp $releasefile ${releasefile}.bak echo -e "$releaseTitle" | cat - $releasefile > ${TMPDIR}/prependedFile mv -fT ${TMPDIR}/prependedFile $releasefile 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 $xo ]]; then echo "Setting up /boot/olpc.fth file." args=$(egrep "^[ ]*append" $TGTMNT/$SYSLINUXPATH/isolinux.cfg | \ head -n1 | sed -e 's/.*initrd=[^ ]*//') if [[ -z $xonohome && ! -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 <= 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 && \ -f /usr/share/syslinux/vesamenu.c32 ]]; then cp /usr/share/syslinux/vesamenu.c32 $TGTMNT/$SYSLINUXPATH/vesamenu.c32 elif [[ -f $TGTMNT/$SYSLINUXPATH/vesamenu.c32 && \ -f /usr/lib/syslinux/vesamenu.c32 ]]; then cp /usr/lib/syslinux/vesamenu.c32 $TGTMNT/$SYSLINUXPATH/vesamenu.c32 elif [[ -f $TGTMNT/$SYSLINUXPATH/menu.c32 && \ -f /usr/share/syslinux/menu.c32 ]]; then cp /usr/share/syslinux/menu.c32 $TGTMNT/$SYSLINUXPATH/menu.c32 elif [[ -f $TGTMNT/$SYSLINUXPATH/menu.c32 && \ -f /usr/lib/syslinux/menu.c32 ]]; then cp /usr/lib/syslinux/menu.c32 $TGTMNT/$SYSLINUXPATH/menu.c32 fi if [[ $TGTFS = vfat || $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 || $TGTFS = ext3 ]]; 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 chattr -i $TGTMNT/$SYSLINUXPATH/extlinux.sys 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 -e "\nTarget device is now set up with a Live image!\n"