#!/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.
-# Latest change: Fri Dec 28 00:59:13 CET 2007 [mika]
################################################################################
# DISCLAIMER:
-# this script currently lacks lots of error checking code... any help welcome...
+# 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='0.0.1'
+VERSION='0.0.2'
+GRML_LIVE_EDITOR=${VISUAL:-${EDITOR:-vi}}
# source core functions {{{
. /etc/grml/lsb-functions
# }}}
# make sure we have what we need {{{
-check4progs mkisofs mksquashfs || exit 1
+check4progs mkisofs mksquashfs stat || exit 1
check4root || exit 1
# }}}
echo "#:# edit the following two lines to change the boot message" \
>/remaster/msg
echo "#:#" >>/remaster/msg
- sed 1,2d /live/image/boot/isolinux/boot.msg >>/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
-mount -t squashfs /live/image/live/grml.squashfs /remaster/cdrom -o ro,loop
-mount -t aufs aufs /remaster/chroot -o br:/remaster/tmp=rw:/remaster/cdrom=rr
+SQUASHFS_FILE="$(find /live/image/live -name \*.squashfs | head -1)"
+if ! grep -q "/remaster/cdrom squashfs" /proc/mounts ; then
+ mount -t squashfs "$SQUASHFS_FILE" /remaster/cdrom -o ro,loop
+fi
+
+if ! grep -q "aufs /remaster/chroot" /proc/mounts ; then
+ mount -t aufs aufs /remaster/chroot -o br:/remaster/tmp=rw:/remaster/cdrom=rr
+fi
for i in dev proc root sys tmp; do
mount --bind /$i /remaster/chroot/$i
umount /remaster/chroot/$i
done
-$EDITOR /remaster/msg
+${GRML_LIVE_EDITOR} /remaster/msg
+
+[ -d /remaster/iso ] || mkdir /remaster/iso
-mkdir /remaster/iso
for i in /live/image/*; do
if [ ! $i == /live/image/live ]; then
cp -R $i /remaster/iso
fi
done
-rm /remaster/iso/boot/isolinux/boot.msg
-sed 3,4d /live/image/boot/isolinux/boot.msg \
+if [ -r /remaster/iso/boot/isolinux/boot.msg ] ; then
+ rm /remaster/iso/boot/isolinux/boot.msg
+fi
+
+# make sure we support usb sticks as well:
+if [ -d /live/image/boot/isolinux ] ; then
+ BOOTSTUFF=/live/image/boot/isolinux
+else
+ BOOTSTUFF=/live/image
+fi
+
+[ -d /remaster/iso/boot/isolinux ] || mkdir -p /remaster/iso/boot/isolinux
+
+sed 3,4d "${BOOTSTUFF}"/boot.msg \
>/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/grml.squashfs
+mksquashfs /remaster/chroot /remaster/iso/live/"$(basename $SQUASHFS_FILE)"
umount /remaster/chroot /remaster/cdrom
-mkisofs -b boot/isolinux/isolinux.bin -no-emul-boot -c boot/isolinux/boot.cat \
- -boot-info-table -l -r -J -o "$1" /remaster/iso
+if [ -f /remaster/iso/boot/isolinux/isolinux.bin ] ; then
+ ISOLINUX=boot/isolinux/isolinux.bin
+ ISOLINUX_BOOTCAT=boot/isolinux/boot.cat
+else
+ ISOLINUX=isolinux.bin
+ ISOLINUX_BOOTCAT=boot.cat
+fi
+
+mkisofs -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"