-#!/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
# path to the grml2usb script you'd like to use
[ -n "$GRML2USB" ] || GRML2USB='grml2usb'
# work directory for creating the filesystem
+ [ -n "$TMPDIR" ] && WRKDIR="${TMPDIR}/grml2iso.tmp"
[ -n "$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
+
+if ! which isohybrid >/dev/null 2>&1 ; then
+ echo "Error: isohybrid executable not found (install syslinux?)." >&2
+ 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.
+ Can be specified 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
+ -t Directory Directory that should be used for temporary files
+ during build. Defaults to /tmp/grml2iso.tmp if unset.
+
+ 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:t: name; do
case $name in
o) ISOFILE="$OPTARG";;
+ b) GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
+ c) DIR="$(readlink -f "$OPTARG")";;
+ f) FORCE='true';;
+ r) GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
+ p) GRML2USB_OPTS+=("$OPTARG");;
+ s) URI="$OPTARG";;
+ t) WRKDIR="$OPTARG";;
?) usage 2;;
esac
done
+ # test for specified URI
+ if [ -n "$URI" ] ; then
+ GRML2USB_OPTS+=(--bootoptions="fetch=$URI")
+ fi
+
+ if [ -n "$WRKDIR" ] ; then
+ GRML2USB_OPTS+=(--tmpdir="$WRKDIR")
+ fi
+
# make sure -o is specified
[ -n "$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 seems to be b0rken
- GRUB_VERSION="grub-pc_1.96+20080724-16"
# normalise path
case $ISOFILE in
# }}}}
# execute grml2usb with all ISOs you'd like to install {{{
- $GRML2USB "$@" "$WRKDIR/cddir"
+ # remove all parameters
+ shift $(($OPTIND - 1))
+
+ $GRML2USB "${GRML2USB_OPTS[@]}" "$@" "$WRKDIR/cddir"
# }}}
# move syslinux to isolinux {{{
mv "$WRKDIR"/cddir/boot/syslinux "$WRKDIR"/cddir/boot/isolinux
+ echo "menu label ^Isolinux prompt" > "$WRKDIR"/cddir/boot/isolinux/promptname.cfg
+ echo "include hd.cfg" >> "$WRKDIR"/cddir/boot/isolinux/grmlmain.cfg
+# }}}
+# change to $WRKDIR {{{
+ # make sure $WRKDIR is an absolute path, otherwise accessing files
+ # in it will fail later in the code path if user provided a
+ # relative directory
+ WRKDIR=$(realpath $WRKDIR)
cd "$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 ${DIR} to generated ISO"
+ for param in GRML_NAME VERSION RELEASENAME DATE SHORT_NAME \
+ VERSION BOOTID RELEASE_INFO ; do
+ EXCLUDE_PARAM="$EXCLUDE_PARAM --exclude **%${param}%**"
+ done
+ rsync -a ${DIR}/ $EXCLUDE_PARAM .
+ fi
+
+ # adjust files from overlay directory
+ for GRML_VERSION_FILE in $(find . -name grml-version) ; do
+ GRML_NAME=$(awk '{print $1}' "$GRML_VERSION_FILE")
+ VERSION=$(awk '{print $2}' "$GRML_VERSION_FILE")
+ RELEASENAME=$(sed 's/.*- \(.*\).*\[.*/\1/' "$GRML_VERSION_FILE")
+ DATE=$(sed 's/.*\[\(.*\)].*/\1/' "$GRML_VERSION_FILE")
+ SHORT_NAME="$(echo $GRML_NAME | tr -d ',./;\- ')"
+ RELEASE_INFO="$GRML_NAME $VERSION - $RELEASENAME"
+ BOOTID=$(cat conf/bootid.txt)
+
+ for param in GRML_NAME VERSION RELEASENAME DATE SHORT_NAME \
+ RELEASE_INFO BOOTID ; do
+ value="$(eval echo '$'"$param")"
+
+ # copy parameterized files from the overlay directory
+ for file in $(find ${DIR} -name "*%$param%*") ; do
+ file=${file##$DIR/}
+ target_dir="$(dirname ${file})"
+ mkdir -p "$target_dir" || true
+ cp -r ${DIR}/${file} ./${target_dir}/"$(basename ${file/\%${param}\%/$value})"
+ done
+
+ # adjust config files
+ for file in ./boot/isolinux/*.cfg ./boot/isolinux/*.msg \
+ ./boot/grub/*.cfg ; do
+ sed -i "s/%$param%/$value/g" ${file} 2>/dev/null || true
+ done
+ done
+ done
# }}}
# 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/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
+ $MKISOFS -V 'grml-multiboot' -l -r -J -no-pad $BOOT_ARGS \
-o "$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)
+ cyls=$(($siz / 512 / 32 / 16 + 1)) # C=$cyls H=16 S=32
+ ofs=$(($cyls * 16 * 32 * 512 - 1)) # padding offset (size - 1)
dd if=/dev/zero bs=1 count=1 seek=$ofs of="$ISOFILE" 2>/dev/null
# }}}
+# make ISO dd-able {{{
+ if isohybrid --help | grep -q -- --uefi ; then
+ echo "isohybrid version supports --uefi option, enabling"
+ ISOHYBRID_OPTIONS=--uefi
+ else
+ echo "isohybrid version does NOT support --uefi option, disabling"
+ fi
+
+ echo "Creating dd-able ISO using isohybrid"
+ isohybrid $ISOHYBRID_OPTIONS "$ISOFILE"
+# }}}
# cleanup {{{
cd "$ORIG_DIR"
rm -rf "$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