- Push new livecd-iso-to-disk that works with Fedora 8 live images
This commit is contained in:
Jeremy Katz
parent
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commit
3f2e975949
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#!/bin/bash
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# Convert a live CD iso so that it's bootable off of a USB stick
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# Copyright 2007 Red Hat, Inc.
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# Jeremy Katz <katzj@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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export PATH=/sbin:/usr/sbin:$PATH
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usage() {
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echo "$0 [--reset-mbr] [--noverify] <isopath> <usbstick device>"
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exit 1
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}
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cleanup() {
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[ -d "$CDMNT" ] && umount $CDMNT && rmdir $CDMNT
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[ -d "$USBMNT" ] && umount $USBMNT && rmdir $USBMNT
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}
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exitclean() {
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echo "Cleaning up to exit..."
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cleanup
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exit 1
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}
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getdisk() {
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DEV=$1
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p=$(udevinfo -q path -n $DEV)
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if [ -e /sys/$p/device ]; then
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device=$(basename /sys/$p)
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else
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device=$(basename $(readlink -f /sys/$p/../))
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fi
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if [ ! -e /sys/block/$device -o ! -e /dev/$device ]; then
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echo "Error finding block device of $DEV. Aborting!"
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exitclean
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fi
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device="/dev/$device"
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}
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resetMBR() {
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getdisk $1
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if [ -f /usr/lib/syslinux/mbr.bin ]; then
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cat /usr/lib/syslinux/mbr.bin > $device
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elif [ -f /usr/share/syslinux/mbr.bin ]; then
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cat /usr/share/syslinux/mbr.bin > $device
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else
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exitclean
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fi
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}
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checkMBR() {
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getdisk $1
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bs=$(mktemp /tmp/bs.XXXXXX)
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dd if=$device of=$bs bs=512 count=1 2>/dev/null || exit 2
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mbrword=$(hexdump -n 2 $bs |head -n 1|awk {'print $2;'})
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rm -f $bs
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if [ "$mbrword" = "0000" ]; then
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echo "MBR appears to be blank."
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echo "Do you want to replace the MBR on this device?"
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echo "Press Enter to continue or ctrl-c to abort"
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read
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resetMBR $1
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fi
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return 0
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}
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checkPartActive() {
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dev=$1
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getdisk $dev
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# if we're installing to whole-disk and not a partition, then we
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# don't need to worry about being active
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if [ "$dev" = "$device" ]; then
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return
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fi
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if [ "$(/sbin/fdisk -l $device 2>/dev/null |grep $dev |awk {'print $2;'})" != "*" ]; then
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echo "Partition isn't marked bootable!"
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echo "You can mark the partition as bootable with "
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echo " # /sbin/parted $device"
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echo " (parted) toggle N boot"
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echo " (parted) quit"
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exitclean
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fi
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}
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checkFilesystem() {
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dev=$1
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USBFS=$(/lib/udev/vol_id -t $dev)
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if [ "$USBFS" != "vfat" -a "$USBFS" != "msdos" -a "$USBFS" != "ext2" -a "$USBFS" != "ext3" ]; then
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echo "USB filesystem must be vfat or ext[23]"
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exitclean
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fi
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USBLABEL=$(/lib/udev/vol_id -u $dev)
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if [ -n "$USBLABEL" ]; then
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USBLABEL="UUID=$USBLABEL" ;
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else
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USBLABEL=$(/lib/udev/vol_id -l $dev)
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if [ -n "$USBLABEL" ]; then
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USBLABEL="LABEL=$USBLABEL"
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else
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echo "Need to have a filesystem label or UUID for your USB device"
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if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
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echo "Label can be set with /sbin/dosfslabel"
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elif [ "$USBFS" = "ext2" -o "$USBFS" = "ext3" ]; then
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echo "Label can be set with /sbin/e2label"
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fi
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exitclean
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fi
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fi
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}
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checkSyslinuxVersion() {
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if [ ! -x /usr/bin/syslinux ]; then
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echo "You need to have syslinux installed to run this script"
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exit 1
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fi
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if ! syslinux 2>&1 | grep -qe -d; then
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SYSLINUXPATH=""
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else
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SYSLINUXPATH="syslinux"
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fi
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}
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if [ $(id -u) != 0 ]; then
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echo "You need to be root to run this script"
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exit 1
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fi
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while [ $# -gt 2 ]; do
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case $1 in
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--noverify)
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noverify=1
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;;
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--reset-mbr|--resetmbr)
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resetmbr=1
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;;
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*)
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usage
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;;
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esac
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shift
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done
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ISO=$1
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USBDEV=$2
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if [ -z "$ISO" -o ! -e "$ISO" ]; then
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usage
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fi
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if [ -z "$USBDEV" -o ! -b "$USBDEV" ]; then
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usage
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fi
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if [ -z "$noverify" ]; then
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# verify the image
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echo "Verifying image..."
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checkisomd5 --verbose $ISO
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if [ $? -ne 0 ]; then
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echo "Are you SURE you want to continue?"
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echo "Press Enter to continue or ctrl-c to abort"
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read
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fi
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fi
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# do some basic sanity checks.
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checkSyslinuxVersion
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checkFilesystem $USBDEV
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checkPartActive $USBDEV
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checkMBR $USBDEV
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[ -n $resetmbr ] && resetMBR $USBDEV
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# FIXME: would be better if we had better mountpoints
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CDMNT=$(mktemp -d /media/cdtmp.XXXXXX)
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mount -o loop $ISO $CDMNT || exitclean
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USBMNT=$(mktemp -d /media/usbdev.XXXXXX)
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mount $USBDEV $USBMNT || exitclean
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trap exitclean SIGINT SIGTERM
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if [ -d $USBMNT/LiveOS ]; then
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echo "Already set up as live image. Deleting old in fifteen seconds..."
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sleep 15
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rm -rf $USBMNT/LiveOS
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fi
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echo "Copying live image to USB stick"
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if [ ! -d $USBMNT/$SYSLINUXPATH ]; then mkdir $USBMNT/$SYSLINUXPATH ; fi
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if [ ! -d $USBMNT/LiveOS ]; then mkdir $USBMNT/LiveOS ; fi
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# cases without /LiveOS are legacy detection, remove for F10
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if [ -f $CDMNT/LiveOS/squashfs.img ]; then
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cp $CDMNT/LiveOS/squashfs.img $USBMNT/LiveOS/squashfs.img || exitclean
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elif [ -f $CDMNT/squashfs.img ]; then
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cp $CDMNT/squashfs.img $USBMNT/LiveOS/squashfs.img || exitclean
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elif [ -f $CDMNT/LiveOS/ext3fs.img ]; then
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cp $CDMNT/LiveOS/ext3fs.img $USBMNT/LiveOS/ext3fs.img || exitclean
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elif [ -f $CDMNT/ext3fs.img ]; then
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cp $CDMNT/ext3fs.img $USBMNT/LiveOS/ext3fs.img || exitclean
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fi
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if [ -f $CDMNT/osmin.img ]; then
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cp $CDMNT/osmin.img $USBMNT/LiveOS/osmin.img || exitclean
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fi
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cp $CDMNT/isolinux/* $USBMNT/$SYSLINUXPATH
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echo "Updating boot config file"
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# adjust label and fstype
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sed -i -e "s/CDLABEL=[^ ]*/$USBLABEL/" -e "s/rootfstype=[^ ]*/rootfstype=$USBFS/" $USBMNT/$SYSLINUXPATH/isolinux.cfg
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echo "Installing boot loader"
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if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
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# syslinux expects the config to be named syslinux.cfg
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# and has to run with the file system unmounted
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mv $USBMNT/$SYSLINUXPATH/isolinux.cfg $USBMNT/$SYSLINUXPATH/syslinux.cfg
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cleanup
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if [ -n "$SYSLINUXPATH" ]; then
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syslinux -d $SYSLINUXPATH $USBDEV
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else
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syslinux $USBDEV
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fi
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elif [ "$USBFS" = "ext2" -o "$USBFS" = "ext3" ]; then
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# extlinux expects the config to be named extlinux.conf
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# and has to be run with the file system mounted
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mv $USBMNT/$SYSLINUXPATH/isolinux.cfg $USBMNT/$SYSLINUXPATH/extlinux.conf
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extlinux -i $USBMNT/syslinux
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cleanup
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fi
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echo "USB stick set up as live image!"
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@ -1,11 +1,12 @@
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Summary: Tools for building live CD's
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Name: livecd-tools
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Version: 009
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Release: 1%{?dist}
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Release: 2%{?dist}
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License: GPL
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Group: System Environment/Base
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URL: http://git.fedoraproject.org/?p=hosted/livecd
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Source0: %{name}-%{version}.tar.bz2
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Source1: isotostick.sh
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BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
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Requires: util-linux
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Requires: coreutils
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@ -34,6 +35,8 @@ make
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rm -rf $RPM_BUILD_ROOT
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make install DESTDIR=$RPM_BUILD_ROOT
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install -m 0755 %{SOURCE1} $RPM_BUILD_ROOT/%{_bindir}/livecd-iso-to-disk
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%clean
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rm -rf $RPM_BUILD_ROOT
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@ -48,6 +51,9 @@ rm -rf $RPM_BUILD_ROOT
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%{_datadir}/livecd-tools/*
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%changelog
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* Mon Nov 5 2007 Jeremy Katz <katzj@redhat.com> - 009-2
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- Push new livecd-iso-to-disk that works with Fedora 8 live images
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* Wed May 30 2007 Jeremy Katz <katzj@redhat.com> - 009-1
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- miscellaneous live config changes
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- fix isomd5 checking syntax error
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