#!/bin/bash
-################################################################################
-# Filename: grml2iso
-# Purpose: create a multiboot ISO using grml2usb
-# Author: Michael Prokop <mika@grml.org>,
-# Thorsten Glaser <tg@mirbsd.org>
+# Filename: grml2iso
+# Purpose: create a multiboot grml ISO using grml2usb
+# Authors: Michael Prokop <mika@grml.org>,
+# 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.
################################################################################
# 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
+# * support setting grml2usb options
################################################################################
-# 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
+# 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: $0 target.iso source1.iso [source2.iso ...]"
- exit 1
-}
+# adjust variables if necessary through environment {{{
+# path to the grml2usb script you'd like to use
+ [ -n "$GRML2USB" ] || GRML2USB='grml2usb'
+# work directory for creating the filesystem
+ [ -n "$WRKDIR" ] || WRKDIR='/tmp/grml2iso.tmp'
+# }}}
+
+# helper stuff {{{
+ set -e
+
+ usage() {
+ echo >&2 "Usage: $0 [OPTIONS] -o target.iso source1.iso [source2.iso ...]"
+ echo >&2 "
+Options:
+ -b Boot Params Additional boot parameters passed to grml2usb
+ -c Directory Copy files from directory to generated iso
+ -f Force overwrite of existing target.iso
+ -r BootParam Remove specified boot params.
+ Could be specfied multiple times.
+"
+ [ -n "$1" ] && exit $1 || exit 1
+ }
+# }}}
+
+# command line handling {{{
+ [[ $# -gt 2 ]] || usage 1
+
+ ISOFILE=''
+ DIR=''
+ ADD_OPTS=''
+ FORCE=''
+ typeset -a REMOVE_OPTS
+ while getopts fb:c:o:r: name; do
+ case $name in
+ o) ISOFILE="$OPTARG";;
+ b) ADD_OPTS="--bootoption="$OPTARG"";;
+ c) DIR="$OPTARG";;
+ f) FORCE='true';;
+ r) REMOVE_OPTS+=(--remove-bootoption="$OPTARG");;
+ ?) usage 2;;
+ esac
+ done
-set -e
-set -u
+# make sure -o is specified
+ [ -n "$ISOFILE" ] || usage 1
-# ********* 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! *******************************************
+# we don't to override any files by accident
+ if [ -e "$ISOFILE" -a ! -n "$FORCE" ]; then
+ echo "Error: target file $ISOFILE exists already." >&2
+ exit 1
+ fi
-test $# -lt 2 && usage
-if test -e "$1"; then
- echo >&2 Error: target file "'$1'" already exists.
- usage
-fi
-ISOFILE=$1; shift
+ if [ ! -z "$DIR" -a ! -d "$DIR" ] ; then
+ echo "Error: specified parameter for -c is not a directory" >&2
+ exit 1
+ fi
-# variables
- ORIG_DIR="$(pwd)"
- # note: grub-pc_1.96+20090603-1_i386.deb seems to be b0rken
- GRUB_DEB="grub-pc_1.96+20080724-16_i386.deb"
+ shift $(($OPTIND - 1))
+# }}}
-# normalise path (in mksh I’d just use the realpath builtin…)
-case $ISOFILE in
-/*) ;;
-*) ISOFILE=$ORIG_DIR/$ISOFILE ;;
-esac
+# we need root permissions for executing grml2usb {{{
+ if [[ $(id -u) != 0 ]]; then
+ echo >&2 "Error: please run $0 as root."
+ exit 1
+ fi
+# }}}
-# create necessary stuff under WRKDIR
+# variables {{{
+ ORIG_DIR="$(pwd)"
+ # note: grub-pc_1.96+20090603-1 seems to be b0rken
+ GRUB_VERSION="grub-pc_1.96+20080724-16"
+
+# normalise path
+ case $ISOFILE in
+ /*) ;;
+ *) ISOFILE=$ORIG_DIR/$ISOFILE ;;
+ esac
+# }}}
+
+# create necessary stuff under WRKDIR {{{
+ [ -d "$WRKDIR" ] && WRKDIR_EXISTED='true' || WRKDIR_EXISTED='false'
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
+ mkdir -p "$WRKDIR/cddir"
+# }}}}
+
+# execute grml2usb with all ISOs you'd like to install {{{
+ $GRML2USB "${REMOVE_OPTS[@]}" ${ADD_OPTS:+"$ADD_OPTS"} "$@" "$WRKDIR/cddir"
+# }}}
+
+# move syslinux to isolinux {{{
+ mv "$WRKDIR"/cddir/boot/syslinux "$WRKDIR"/cddir/boot/isolinux
- cat usr/lib/grub/i386-pc/cdboot.img "$WRKDIR"/cddir/boot/grub/core.img \
- > "$WRKDIR"/cddir/boot/grub/eltorito.img
cd "$WRKDIR/cddir"
+ echo "menu label ^Isolinux prompt" > boot/isolinux/promptname.cfg
+ echo "include hd.cfg" >> boot/isolinux/grmlmain.cfg
+# }}}
+
+# copy specified directory to cd {{{
+ if [ -n "$DIR" ] ; then
+ echo >&2 "Copying ${DIR} to generated iso"
+ rsync -a ${DIR}/ .
+ fi
-# finally generate the CD/DVD-iso
+# }}}
+
+# generate the CD/DVD ISO {{{
mkisofs -V 'grml-multiboot' -l -r -J -no-pad \
-no-emul-boot -boot-load-size 4 -boot-info-table \
- -b boot/grub/eltorito.img -c boot/grub/eltorito.cat \
+ -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
-o "$ISOFILE" .
+# }}}
-# pad the output ISO to multiples of 256 KiB for partition table support
+# 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)
+ 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
+# cleanup {{{
cd "$ORIG_DIR"
sync
rm -rf "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
-
-# we are done :)
+ [[ $WRKDIR_EXISTED = 'false' ]] && rmdir "$WRKDIR"
echo "Generated $ISOFILE"
+# }}}
## EOF #########################################################################
+# vim:foldmethod=marker ts=2 ft=sh ai expandtab tw=80 sw=3
projects / grml2usb.git / blobdiff