--- /dev/null
+#!/bin/bash
+################################################################################
+# Filename: grml2iso
+# Purpose: create a multiboot ISO using grml2usb
+# Author: Michael Prokop <mika@grml.org>,
+# Thorsten Glaser <tg@mirbsd.org>
+################################################################################
+# TODO:
+# * generalise the script so we can provide it as part of the grml2usb suite
+# * improve error handling
+# * support isolinux as bootloader on the ISO
+################################################################################
+
+# 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
+
+usage() {
+ echo >&2 "Usage: $0 target.iso source1.iso [source2.iso ...]"
+ exit 1
+}
+
+set -e
+set -u
+
+# ********* PLEASE ADJUST! *******************************************
+# specify path to the grml2usb script you'd like to use
+GRML2USB='grml2usb'
+# work directory for creating the filesystem
+WRKDIR='/dev/shm/grml2iso.tmp'
+# ********* PLEASE ADJUST! *******************************************
+
+test $# -lt 2 && usage
+if test -e "$1"; then
+ echo >&2 Error: target file "'$1'" already exists.
+ usage
+fi
+ISOFILE=$1; shift
+
+# variables
+ ORIG_DIR="$(pwd)"
+ # note: grub-pc_1.96+20090603-1_i386.deb seems to be b0rken
+ GRUB_DEB="grub-pc_1.96+20080724-16_i386.deb"
+
+# normalise path (in mksh I’d just use the realpath builtin…)
+case $ISOFILE in
+/*) ;;
+*) ISOFILE=$ORIG_DIR/$ISOFILE ;;
+esac
+
+# create necessary stuff under WRKDIR
+ rm -rf "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
+ mkdir -p "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
+
+# execute grml2usb with all ISOs you'd like to install
+ $GRML2USB "$@" "$WRKDIR/cddir"
+
+# install grub2 files
+# as we don't want to rely on a grub2 installation on the
+# running system let's grab it from the net
+ cd "$WRKDIR"/grub_tmp/
+ wget http://ftp.de.debian.org/debian/pool/main/g/grub2/"$GRUB_DEB"
+ ar x "$GRUB_DEB"
+ tar xzf data.tar.gz
+ ./usr/bin/grub-mkimage -d usr/lib/grub/i386-pc \
+ -o "$WRKDIR"/cddir/boot/grub/core.img biosdisk iso9660
+
+ for a in usr/lib/grub/i386-pc/{*.mod,efiemu??.o,command.lst,moddep.lst,fs.lst,handler.lst,parttool.lst}; do
+ test -e $a && cp $a "$WRKDIR"/cddir/boot/grub/
+ done
+
+ cat usr/lib/grub/i386-pc/cdboot.img "$WRKDIR"/cddir/boot/grub/core.img \
+ > "$WRKDIR"/cddir/boot/grub/eltorito.img
+ cd "$WRKDIR/cddir"
+
+# finally generate the CD/DVD-iso
+ mkisofs -V 'grml-multiboot' -l -r -J -no-pad \
+ -no-emul-boot -boot-load-size 4 -boot-info-table \
+ -b boot/grub/eltorito.img -c boot/grub/eltorito.cat \
+ -o "$ISOFILE" .
+
+# pad the output ISO to multiples of 256 KiB for partition table support
+ siz=$($getfilesize "$ISOFILE")
+ cyls=$(echo "$siz / 512 / 32 / 16 + 1" | bc) # C=$cyls H=16 S=32
+ ofs=$(echo "$cyls * 16 * 32 * 512 - 1" | bc) # padding offset (size - 1)
+ dd if=/dev/zero bs=1 count=1 seek=$ofs of="$ISOFILE" 2>/dev/null
+
+# create a manifold-boot image with a partition table, if possible
+ if mksh -c true 2>/dev/null && \
+ test -e /usr/share/grml-live/scripts/bootgrub.mksh; then
+ echo "Creating a manifold-boot ISO image"
+ echo 1 63 | \
+ mksh /usr/share/grml-live/scripts/bootgrub.mksh -A -M 1 -p 0x83 -g $cyls:16:32 | \
+ cat - boot/grub/core.img | \
+ dd conv=notrunc of="$ISOFILE" conv=notrunc 2>/dev/null
+ else
+ echo "Cannot find mksh or bootgrub.mksh, not generating manifold-boot ISO image"
+ fi
+
+# cleanup
+ cd "$ORIG_DIR"
+ sync
+ rm -rf "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
+
+# we are done :)
+ echo "Generated $ISOFILE"
+
+## EOF #########################################################################