echo >&2 "
Options:
-b Boot Params Additional boot parameters passed to grml2usb
- -c Directory Copy files from directory to generated iso
+ -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
}
DIR=''
ADD_OPTS=''
FORCE=''
+ URI=''
typeset -a GRML2USB_OPTS
- while getopts fb:c:o:r:p: name; do
+ while getopts fb:c:o:r:p:s: name; do
case $name in
o) ISOFILE="$OPTARG";;
b) GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
f) FORCE='true';;
r) GRML2USB_OPTS+=(--remove-bootoption="$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
$GRML2USB "${GRML2USB_OPTS[@]}" "$@" "$WRKDIR/cddir"
# }}}
-
# move syslinux to isolinux {{{
mv "$WRKDIR"/cddir/boot/syslinux "$WRKDIR"/cddir/boot/isolinux
echo "include hd.cfg" >> boot/isolinux/grmlmain.cfg
# }}}
+# 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"
+ echo >&2 "Copying ${DIR} to generated ISO"
rsync -a ${DIR}/ .
fi
dd if=/dev/zero bs=1 count=1 seek=$ofs of="$ISOFILE" 2>/dev/null
# }}}
-
# cleanup {{{
cd "$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 #########################################################################