2 # Filename: grml-live-remaster
3 # Purpose: remaster a grml from the live cd
4 # Authors: grml-team (grml.org),
5 # (c) Michael Schierl <schierlm@gmx.de>,
6 # (c) Michael Prokop <mika@grml.org>,
7 # (c) Thorsten Glaser <tg@mirbsd.org>
8 # Bug-Reports: see http://grml.org/bugs/
9 # License: This file is licensed under the GPL v2 or any later version.
10 ################################################################################
12 # this script currently lacks LOTS of error checking code... any help welcome...
13 ################################################################################
15 # define function getfilesize before "set -e"
16 if stat --help >/dev/null 2>&1; then
17 getfilesize='stat -c %s' # GNU stat
19 getfilesize='stat -f %z' # BSD stat
22 set -e # exit on any error
25 GRML_LIVE_EDITOR=${VISUAL:-${EDITOR:-vi}}
27 if [ ! -d /etc/grml -o ! -d /live ]; then
28 echo "Error: $0 has to be run from a Grml live session. Exiting."
32 # source core functions {{{
33 . /etc/grml/lsb-functions
34 . /etc/grml/script-functions
37 # make sure we have what we need {{{
38 check4progs mkisofs stat || exit 1
40 # allow overriding via environment:
41 if [ -z "$MKSQUASHFS" ] ; then
42 if which mksquashfs-lzma >/dev/null 2>&1 ; then
43 MKSQUASHFS=mksquashfs-lzma
44 elif which mksquashfs >/dev/null 2>&1 ; then
47 echo "Error: neither mksquashfs-lzma nor mksquashfs present. Exiting."
54 if [ x"$1" == x ]; then
55 echo "$0 - version $VERSION"
57 echo "Usage: $0 destination.iso"
58 echo " destination.iso should point to a path that is on a hard disk,"
59 echo " you might want to mount some swap partitions or swap files"
60 echo " first, because grml-live-remaster will need a lot ot RAM."
62 echo "Please report bugs and feature requests: http://grml.org/bugs/"
66 if [ ! -d /remaster ]; then
67 mkdir -p /remaster/chroot /remaster/tmp /remaster/cdrom
68 mount -t tmpfs tmpfs /remaster/tmp
69 echo "#:# edit the following two lines to change the boot message" \
71 echo "#:#" >>/remaster/msg
72 if [ -r /live/image/boot/isolinux/boot.msg ] ; then
73 sed 1,2d /live/image/boot/isolinux/boot.msg >>/remaster/msg
75 sed 1,2d /live/image/boot.msg >>/remaster/msg
79 SQUASHFS_FILE="$(find /live/image/live -name \*.squashfs | head -1)"
80 if ! grep -q "/remaster/cdrom squashfs" /proc/mounts ; then
81 mount -t squashfs "$SQUASHFS_FILE" /remaster/cdrom -o ro,loop
84 if ! grep -q "aufs /remaster/chroot" /proc/mounts ; then
85 mount -t aufs aufs /remaster/chroot -o br:/remaster/tmp=rw:/remaster/cdrom=rr
88 for i in dev proc root sys tmp; do
89 mount --bind /$i /remaster/chroot/$i
92 echo "Now edit the contents of the live CD in this chrooted shell:"
93 chroot /remaster/chroot
95 for i in dev proc root sys tmp; do
96 umount /remaster/chroot/$i
99 ${GRML_LIVE_EDITOR} /remaster/msg
101 [ -d /remaster/iso ] || mkdir /remaster/iso
103 for i in /live/image/*; do
104 if [ ! $i == /live/image/live ]; then
105 cp -R $i /remaster/iso
109 if [ -r /remaster/iso/boot/isolinux/boot.msg ] ; then
110 rm /remaster/iso/boot/isolinux/boot.msg
113 # make sure we support usb sticks as well:
114 if [ -d /live/image/boot/isolinux ] ; then
115 BOOTSTUFF=/live/image/boot/isolinux
117 BOOTSTUFF=/live/image
120 [ -d /remaster/iso/boot/isolinux ] || mkdir -p /remaster/iso/boot/isolinux
122 sed 3,4d "${BOOTSTUFF}"/boot.msg \
123 >/remaster/iso/boot/isolinux/boot.msg
124 sed 1,2d /remaster/msg >>/remaster/iso/boot/isolinux/boot.msg
126 mkdir /remaster/iso/live
127 $MKSQUASHFS /remaster/chroot /remaster/iso/live/"$(basename $SQUASHFS_FILE)"
128 umount /remaster/chroot /remaster/cdrom
130 if [ -f /remaster/iso/boot/isolinux/isolinux.bin ] ; then
131 ISOLINUX=boot/isolinux/isolinux.bin
132 ISOLINUX_BOOTCAT=boot/isolinux/boot.cat
134 ISOLINUX=isolinux.bin
135 ISOLINUX_BOOTCAT=boot.cat
138 mkisofs -b $ISOLINUX -no-emul-boot -c $ISOLINUX_BOOTCAT \
139 -boot-info-table -boot-load-size 4 -no-pad \
140 -l -r -J -o "$1" /remaster/iso
141 # pad for partition table
142 siz=$($getfilesize "$1")
143 cyls=$((siz / 512 / 32 / 16 + 1)) # C=$cyls H=16 S=32 (= 256 KiB units)
144 siz=$((cyls * 16 * 32 * 512)) # size after padding
145 dd if=/dev/zero bs=1 count=1 seek=$((siz - 1)) of="$1" 2>/dev/null
148 # here is the place where we could apply bootgrub.mksh
151 echo "ISO generation complete:"
153 echo "If you want to customize your ISO, just call grml-live-remaster again."
155 ## END OF FILE #################################################################
156 # vim: ai filetype=sh expandtab