#!/bin/sh
# Filename: grml-live-remaster
# Purpose: remaster a grml from the live cd
-# Authors: grml-team (grml.org), (c) Michael Schierl <schierlm@gmx.de>, (c) Michael Prokop <mika@grml.org>
+# Authors: grml-team (grml.org),
+# (c) Michael Schierl <schierlm@gmx.de>,
+# (c) Michael Prokop <mika@grml.org>,
+# (c) Thorsten Glaser <tg@mirbsd.org>
# Bug-Reports: see http://grml.org/bugs/
# License: This file is licensed under the GPL v2 or any later version.
################################################################################
# this script currently lacks LOTS of error checking code... any help welcome...
################################################################################
+# define function getfilesize before "set -e"
+if stat --help >/dev/null 2>&1; then
+ getfilesize='stat -c %s' # GNU stat
+else
+ getfilesize='stat -f %z' # BSD stat
+fi
+
set -e # exit on any error
-VERSION='0.0.2'
+if [ -d /live/image/boot/ ] ; then # until Grml versions <=2012.XX
+ LIVE_PATH_MAIN='/live/image'
+ LIVE_PATH_BOOT='/live/image/boot/'
+else # for Grml versions >=2013.XX
+ LIVE_PATH_MAIN='/lib/live/mount/medium/'
+ LIVE_PATH_BOOT='/lib/live/mount/medium/boot/'
+fi
+
+VERSION='0.0.3'
+GRML_LIVE_EDITOR=${VISUAL:-${EDITOR:-vi}}
# source core functions {{{
+if ! [ -r /etc/grml/lsb-functions ] || ! [ -r /etc/grml/script-functions ] ; then
+ echo "Error: could not read /etc/grml/lsb-functions and/or /etc/grml/script-functions." >&2
+ echo "Error: $0 can run only in Grml live session. Exiting." >&2
+ exit 1
+fi
+
. /etc/grml/lsb-functions
. /etc/grml/script-functions
# }}}
+if ! isgrmlcd ; then
+ echo "Error: $0 can run only in Grml live session. Exiting." >&2
+ exit 1
+fi
+
# make sure we have what we need {{{
-check4progs mkisofs mksquashfs || exit 1
+if check4progs mkisofs >/dev/null 2>&1 ; then
+ MKISO=mkisofs
+fi
+
+if check4progs genisoimage >/dev/null 2>&1 ; then
+ MKISO=genisoimage
+fi
+
+if [ -z "$MKISO" ] ; then
+ echo "Error: neither mkisofs nor genisoimage available. Exiting." >&2
+ exit 1
+fi
+
+check4progs stat || exit 1
+
+# allow overriding via environment:
+if [ -z "$MKSQUASHFS" ] ; then
+ if which mksquashfs >/dev/null 2>&1 ; then
+ MKSQUASHFS=mksquashfs
+ else
+ echo "Error: mksquashfs is not available. Exiting." >&2
+ exit 1
+ fi
+fi
check4root || exit 1
# }}}
-if [ x"$1" == x ]; then
- echo "$0 - version $VERSION"
- echo ""
- echo "Usage: $0 destination.iso"
- echo " destination.iso should point to a path that is on a hard disk,"
- echo " you might want to mount some swap partitions or swap files"
- echo " first, because grml-live-remaster will need a lot ot RAM."
- echo ""
- echo "Please report bugs and feature requests: http://grml.org/bugs/"
- exit -1
-fi
-
-if [ ! -d /remaster ]; then
- mkdir -p /remaster/chroot /remaster/tmp /remaster/cdrom
- mount -t tmpfs tmpfs /remaster/tmp
- echo "#:# edit the following two lines to change the boot message" \
- >/remaster/msg
- echo "#:#" >>/remaster/msg
- if [ -r /live/image/boot/isolinux/boot.msg ] ; then
- sed 1,2d /live/image/boot/isolinux/boot.msg >>/remaster/msg
- else
- sed 1,2d /live/image/boot.msg >>/remaster/msg
- fi
-fi
-
-SQUASHFS_FILE="$(find /live/image/live -name \*.squashfs | head -1)"
+if [ -z "$1" ]; then
+ echo "$0 - version $VERSION
+
+Usage: $0 destination.iso
+ destination.iso should point to a path that is on a hard disk,
+ you might want to mount some swap partitions or swap files
+ first, because grml-live-remaster will need a lot of RAM.
+
+Please report bugs and feature requests: http://grml.org/bugs/" >&2
+ exit 1
+fi
+
+if [ ! -r /remaster ]; then
+ echo "Please create /remaster (e.g. link it to a harddrive)." >&2
+ echo "Exiting to avoid running out of space on the live system." >&2
+ exit 1
+fi
+
+mkdir -p /remaster/chroot /remaster/tmp /remaster/cdrom
+mount -t tmpfs tmpfs /remaster/tmp
+echo "#:# edit the following two lines to change the boot message" >/remaster/msg
+echo "#:#" >>/remaster/msg
+if [ -r ${LIVE_PATH_BOOT}/isolinux/boot.msg ] ; then
+ sed 1,2d ${LIVE_PATH_BOOT}/isolinux/boot.msg >>/remaster/msg
+fi
+
+SQUASHFS_FILE="$(find ${LIVE_PATH_MAIN}/live -name \*.squashfs | head -1)"
if ! grep -q "/remaster/cdrom squashfs" /proc/mounts ; then
mount -t squashfs "$SQUASHFS_FILE" /remaster/cdrom -o ro,loop
fi
mount -t aufs aufs /remaster/chroot -o br:/remaster/tmp=rw:/remaster/cdrom=rr
fi
-for i in dev proc root sys tmp; do
+for i in run dev dev/pts proc root sys tmp; do
mount --bind /$i /remaster/chroot/$i
done
echo "Now edit the contents of the live CD in this chrooted shell:"
chroot /remaster/chroot
-for i in dev proc root sys tmp; do
+for i in run dev/pts dev proc root sys tmp; do
umount /remaster/chroot/$i
done
-$EDITOR /remaster/msg
+${GRML_LIVE_EDITOR} /remaster/msg
[ -d /remaster/iso ] || mkdir /remaster/iso
-for i in /live/image/*; do
- if [ ! $i == /live/image/live ]; then
+for i in ${LIVE_PATH_MAIN}/*; do
+ if [ ! $i = ${LIVE_PATH_MAIN}/live ]; then
cp -R $i /remaster/iso
fi
done
fi
# make sure we support usb sticks as well:
-if [ -d /live/image/boot/isolinux ] ; then
- BOOTSTUFF=/live/image/boot/isolinux
+if [ -d ${LIVE_PATH_BOOT}/isolinux ] ; then
+ BOOTSTUFF=${LIVE_PATH_BOOT}/isolinux
else
- BOOTSTUFF=/live/image
+ BOOTSTUFF=${LIVE_PATH_MAIN}
fi
[ -d /remaster/iso/boot/isolinux ] || mkdir -p /remaster/iso/boot/isolinux
>/remaster/iso/boot/isolinux/boot.msg
sed 1,2d /remaster/msg >>/remaster/iso/boot/isolinux/boot.msg
-mkdir /remaster/iso/live
-mksquashfs /remaster/chroot /remaster/iso/live/"$(basename $SQUASHFS_FILE)"
+SQUASHFS_FQNAME=/remaster/iso/${SQUASHFS_FILE##$LIVE_PATH_MAIN}
+mkdir -p $(dirname $SQUASHFS_FQNAME)
+# the next line is necessary for grml2usb to work on the destination image
+echo $(basename $SQUASHFS_FQNAME) > $(dirname $SQUASHFS_FQNAME)/filesystem.module
+$MKSQUASHFS /remaster/chroot $SQUASHFS_FQNAME
umount /remaster/chroot /remaster/cdrom
if [ -f /remaster/iso/boot/isolinux/isolinux.bin ] ; then
ISOLINUX_BOOTCAT=boot.cat
fi
-mkisofs -b $ISOLINUX -no-emul-boot -c $ISOLINUX_BOOTCAT \
- -boot-info-table -l -r -J -o "$1" /remaster/iso
+$MKISO -b $ISOLINUX -no-emul-boot -c $ISOLINUX_BOOTCAT \
+ -boot-info-table -boot-load-size 4 -no-pad \
+ -l -r -J -o "$1" /remaster/iso
+# pad for partition table
+siz=$($getfilesize "$1")
+cyls=$((siz / 512 / 32 / 16 + 1)) # C=$cyls H=16 S=32 (= 256 KiB units)
+siz=$((cyls * 16 * 32 * 512)) # size after padding
+dd if=/dev/zero bs=1 count=1 seek=$((siz - 1)) of="$1" 2>/dev/null
rm -R /remaster/iso
+# here is the place where we could apply bootgrub.mksh
+
echo ""
echo "ISO generation complete:"
ls --color -l "$1"
projects / grml-live.git / blobdiff