# 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
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 {{{
-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.
+ 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.
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
FORCE=''
URI=''
typeset -a GRML2USB_OPTS
- while getopts fb:c:o:r:p:s: name; do
+ while getopts fb:c:o:r:p:s:t: name; do
case $name in
o) ISOFILE="$OPTARG";;
b) GRML2USB_OPTS+=(--bootoptions="$OPTARG");;
r) GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
p) GRML2USB_OPTS+=("$OPTARG");;
s) URI="$OPTARG";;
+ t) WRKDIR="$OPTARG";;
?) usage 2;;
esac
done
GRML2USB_OPTS+=(--bootoptions="fetch=$URI")
fi
+ if [ -n "$WRKDIR" ] ; then
+ GRML2USB_OPTS+=(--tmpdir="$WRKDIR")
+ fi
+
# make sure -o is specified
[ -n "$ISOFILE" ] || usage 1
# pad the output ISO to multiples of 256 KiB for partition table support {{{
siz=$($getfilesize "$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"
sync