-#!/bin/bash
+#!/usr/bin/env bash
# Filename: grml2iso
# Purpose: create a multiboot grml ISO using grml2usb
# Authors: Michael Prokop <mika@grml.org>,
# Bug-Reports: see http://grml.org/bugs/
# License: This file is licensed under the GPL v2 or any later version.
################################################################################
-# TODO:
-# * support isolinux as bootloader on the ISO
-# * support setting grml2usb options (e.g. --bootoptions=...)
-################################################################################
# define function getfilesize before "set -e" {{{
if stat --help >/dev/null 2>&1; then
[ -n "$GRML2USB" ] || GRML2USB='grml2usb'
# work directory for creating the filesystem
[ -n "$WRKDIR" ] || WRKDIR='/tmp/grml2iso.tmp'
+# support mkisofs as well as genisoimage
+if which xorriso >/dev/null 2>&1 ; then
+ MKISOFS='xorriso -as mkisofs'
+elif which mkisofs >/dev/null 2>&1; then
+ MKISOFS='mkisofs'
+elif which genisoimage >/dev/null 2>&1; then
+ MKISOFS='genisoimage'
+else
+ echo >&2 "Error: neither mkisofs nor genisoimage available - can not create ISO."
+ exit 1
+fi
# }}}
# helper stuff {{{
set -e
usage() {
- echo >&2 "Usage: $0 -o target.iso source1.iso [source2.iso ...]"
+ 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.
+ -p <grml2usb param> Add the specified parameter to the grml2usb
+ commandline. For a list of valid parameters have
+ a look at the grml2usb manpage.
+ Can be specified multiple times.
+ -s URI Generate a small ISO file which downloads the squashfs
+ file from the specified URI. Please note that due to
+ restrictions in the bootprocess only IPs are allowed.
+ Supported protocols are: http and ftp
+
+ Examples:
+ $0 -s http://192.168.23.42:8000/grml/ -o small.iso grml64_2010.12.iso
+
+ Will generate a file small.iso which tries to download the squashfs file from
+ http://192.168.23.42:8000/grml/ - the squashfs file is placed in the same
+ output directory as the ISO file.
+"
[ -n "$1" ] && exit $1 || exit 1
}
# }}}
[[ $# -gt 2 ]] || usage 1
ISOFILE=''
- while getopts ao: name; do
+ DIR=''
+ ADD_OPTS=''
+ FORCE=''
+ URI=''
+ typeset -a GRML2USB_OPTS
+ while getopts fb:c:o:r:p:s: name; do
case $name in
o) ISOFILE="$OPTARG";;
+ b) GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
+ c) DIR="$OPTARG";;
+ f) FORCE='true';;
+ r) GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
+ p) GRML2USB_OPTS+=("$OPTARG");;
+ s) URI="$OPTARG";;
?) usage 2;;
esac
done
+ # test for specified URI
+ if [ -n "$URI" ] ; then
+ GRML2USB_OPTS+=(--bootoptions="fetch=$URI")
+ fi
# make sure -o is specified
[ -n "$ISOFILE" ] || usage 1
# we don't to override any files by accident
- if [ -e "$ISOFILE" ]; then
+ if [ -e "$ISOFILE" -a ! -n "$FORCE" ]; then
echo "Error: target file $ISOFILE exists already." >&2
exit 1
fi
- shift $(($OPTIND - 1))
+ if [ ! -z "$DIR" -a ! -d "$DIR" ] ; then
+ echo "Error: specified parameter for -c is not a directory" >&2
+ exit 1
+ fi
# }}}
# we need root permissions for executing grml2usb {{{
fi
# }}}
+# check for grml2usb {{{
+ if [ ! -x "$(which $GRML2USB)" ] && [ ! -x "$GRML2USB" ] ; then
+ echo >&2 "Error: Could not find grml2usb"
+ if [ -x "./$GRML2USB" ] ; then
+ echo >&2 "If you executed grml2iso from the grml2usb repository use"
+ echo >&2 "GRML2USB=./grml2usb $0 $*"
+ fi
+ exit 1
+ fi
+# }}}
+
# variables {{{
ORIG_DIR="$(pwd)"
- # note: grub-pc_1.96+20090603-1_i386.deb seems to be b0rken
- GRUB_DEB="grub-pc_1.96+20080724-16_i386.deb"
# normalise path
case $ISOFILE in
# }}}
# create necessary stuff under WRKDIR {{{
+ [ -d "$WRKDIR" ] && WRKDIR_EXISTED='true' || WRKDIR_EXISTED='false'
rm -rf "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
- mkdir -p "$WRKDIR/cddir" "$WRKDIR/grub_tmp"
+ mkdir -p "$WRKDIR/cddir"
# }}}}
# execute grml2usb with all ISOs you'd like to install {{{
- $GRML2USB "$@" "$WRKDIR/cddir"
+ # remove all parameters
+ shift $(($OPTIND - 1))
+
+ $GRML2USB "${GRML2USB_OPTS[@]}" "$@" "$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
+# 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 "$WRKDIR/cddir"
+ echo "menu label ^Isolinux prompt" > boot/isolinux/promptname.cfg
+ echo "include hd.cfg" >> boot/isolinux/grmlmain.cfg
+# }}}
+
+# efi boot {{{
+ # default, independent of UEFI support
+ BOOT_ARGS="-no-emul-boot -boot-load-size 4 -boot-info-table -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat"
+
+ case "$MKISOFS" in
+ xorriso*)
+ echo "Using xorriso for ISO generation."
+ if ! dpkg --compare-versions $(dpkg-query -W -f='${Version}\n' xorriso 2>/dev/null) gt-nl 1.1.6-1 ; then
+ echo "Disabling (U)EFI boot support since xorriso version is not recent enough."
+ else
+ echo "xorriso with -eltorito-alt-boot support present"
+
+ if ! [ -r "${WRKDIR}/cddir/boot/efi.img" ] ; then
+ echo "File /boot/efi.img not found, not extending boot arguments for (U)EFI boot."
+ else
+ echo "/boot/efi.img found, extending boot arguments for (U)EFI boot."
+ BOOT_ARGS="$BOOT_ARGS -boot-info-table -eltorito-alt-boot -e boot/efi.img -no-emul-boot"
+ fi
+ fi
+ ;;
+ esac
+# }}}
+
+# adjust ISO for small output if necessary {{{
+ if [ -n "$URI" ] ; then
+ bootloader_files=$(find . -name "*.cfg" -type f)
+ bootloader_files+=" "
+ bootloader_files+=$(find . -name "*.lst" -type f)
+ output_dir=$(dirname "$ISOFILE")
+ for squashfs in $(find . -name *.squashfs) ; do
+ media_path="$(dirname "$squashfs")"
+ filename="$(basename "$squashfs")"
+ target="$output_dir/$filename"
+ if [ -f "$target" ] && [ ! -n "$FORCE" ] ; then
+ echo >&2 "Warning: $target already exists, and -force not specified, not overwriting"
+ else
+ mv $squashfs $target
+ OUTPUT_FILES+=("$target")
+ fi
+ sed -i -e "s#^\(^.*$media_path.*\)\($URI\)\(.*$\)#\1$URI/$filename\3#g" $bootloader_files
+
+ done
+ fi
+# }}}
+
+# copy specified directory to cd {{{
+ if [ -n "$DIR" ] ; then
+ echo >&2 "Copying ${DIR} to generated ISO"
+ rsync -a ${DIR}/ .
+ fi
+
# }}}
# 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 \
+ $MKISOFS -V 'grml-multiboot' -l -r -J -no-pad $BOOT_ARGS \
-o "$ISOFILE" .
# }}}
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"
+ [[ $WRKDIR_EXISTED = 'false' ]] && rmdir "$WRKDIR"
echo "Generated $ISOFILE"
+ if [ -n "$URI" ] ; then
+ echo "
+Information:
+==============
+You requested to generate a small ISO image. Your generated
+ISO image $ISOFILE does _not_ contain the squashfs files from
+the source ISO images.
+
+You have to provide the extracted squashfs files under $URI.
+
+ISO image: $ISOFILE
+Squashfs files: ${OUTPUT_FILES[@]}
+URI: $URI
+"
+ fi
# }}}
## EOF #########################################################################
projects / grml2usb.git / blobdiff