# License: This file is licensed under the GPL v2 or any later version.
################################################################################
+# make sure we have the sbin directories in our PATH to find grml2usb ootb
+PATH="${PATH}:/sbin:/usr/local/sbin:/usr/sbin"
+
# define function getfilesize before "set -e" {{{
if stat --help >/dev/null 2>&1; then
getfilesize='stat -c %s' # GNU stat
elif which genisoimage >/dev/null 2>&1; then
MKISOFS='genisoimage'
else
- echo >&2 "Error: neither mkisofs nor genisoimage available - can not create ISO."
+ echo "Error: neither xorriso nor mkisofs nor genisoimage available - can not create ISO." >&2
exit 1
fi
if ! which isohybrid >/dev/null 2>&1 ; then
- echo "Error: isohybrid executable not found (install syslinux?)." >&2
+ echo "Error: isohybrid executable not found (install syslinux/isolinux/syslinux-utils?)." >&2
exit 1
fi
# }}}
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
+ $0 -s http://192.168.23.42:8000/grml/ -o small.iso grml64-small_2018.12.iso
Will generate a file small.iso which tries to download the squashfs file from
http://192.168.23.42:8000/grml/ - the squashfs file is placed in the same
r) GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
p) GRML2USB_OPTS+=("$OPTARG");;
s) URI="$OPTARG";;
- t) WRKDIR="$OPTARG";;
+ t) WRKDIR="$(readlink -f "$OPTARG")";;
?) usage 2;;
esac
done
# efi boot {{{
# default, independent of UEFI support
BOOT_ARGS="-no-emul-boot -boot-load-size 4 -boot-info-table -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat"
+ UEFI_ENABLE=false
case "$MKISOFS" in
xorriso*)
echo "Disabling (U)EFI boot support since xorriso version is not recent enough."
else
echo "xorriso with -eltorito-alt-boot support present"
+ UEFI_ENABLE=true
if ! [ -r "${WRKDIR}/cddir/boot/efi.img" ] ; then
- echo "File /boot/efi.img not found, not extending boot arguments for (U)EFI boot."
+ echo "Warning: File /boot/efi.img not found, not extending boot arguments for (U)EFI boot."
+ UEFI_ENABLE=false
else
echo "/boot/efi.img found, extending boot arguments for (U)EFI boot."
BOOT_ARGS="$BOOT_ARGS -boot-info-table -eltorito-alt-boot -e boot/efi.img -no-emul-boot"
fi
fi
;;
+ *)
+ echo "Using $MKISOFS for ISO generation (lacking UEFI option), disabling (U)EFI boot support."
+ ;;
esac
# }}}
# }}}
# 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"
+ if ! $UEFI_ENABLE ; then
+ echo "Skipping check for --uefi option in isohybrid since prerequisites are not fulfilled."
+ else
+ if ! isohybrid --help | grep -q -- --uefi ; then
+ echo "isohybrid version does NOT support --uefi option, disabling"
+ else
+ echo "isohybrid version supports --uefi option"
+ ISOHYBRID_OPTIONS=--uefi
+ fi
fi
echo "Creating dd-able ISO using isohybrid"
# }}}
## EOF #########################################################################
-# vim:foldmethod=marker ts=2 ft=sh ai expandtab tw=80 sw=3
+# vim:foldmethod=marker ts=2 ft=sh ai expandtab tw=80 sw=2