blob: da937768b4545effc55f1536b9cb471a75817135 [file] [log] [blame]
#! /bin/sh -e
# Make GRUB rescue image
# Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
# Initialize some variables.
transform="@program_transform_name@"
prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
libdir=@libdir@
PACKAGE_NAME=@PACKAGE_NAME@
PACKAGE_TARNAME=@PACKAGE_TARNAME@
PACKAGE_VERSION=@PACKAGE_VERSION@
target_cpu=@target_cpu@
platform=@platform@
pkglibdir=${libdir}/`echo ${PACKAGE_TARNAME}/${target_cpu}-${platform} | sed ${transform}`
grub_mkimage=${bindir}/`echo grub-mkimage | sed ${transform}`
# Usage: usage
# Print the usage.
usage () {
cat <<EOF
Usage: grub-mkrescue [OPTION] output_image
Make GRUB rescue image.
-h, --help print this message and exit
-v, --version print the version information and exit
--modules=MODULES pre-load specified modules MODULES
--overlay=DIR overlay directory DIR in the memdisk image
(may be specified multiple times)
--pkglibdir=DIR use images from directory DIR instead of ${pkglibdir}
--grub-mkimage=FILE use FILE as grub-mkimage
--image-type=TYPE select floppy or cdrom (default)
--emulation=TYPE select El Torito boot emulation type floppy
or none (default) (cdrom only)
grub-mkimage generates a bootable rescue image of the specified type.
Report bugs to <bug-grub@gnu.org>.
EOF
}
image_type=cdrom
input_dir=${pkglibdir}
emulation=none
# Check the arguments.
for option in "$@"; do
case "$option" in
-h | --help)
usage
exit 0 ;;
-v | --version)
echo "grub-mkrescue (GNU GRUB ${PACKAGE_VERSION})"
exit 0 ;;
--modules=*)
modules=`echo "$option" | sed 's/--modules=//'` ;;
--overlay=*)
overlay=${overlay}${overlay:+ }`echo "$option" | sed 's/--overlay=//'` ;;
--pkglibdir=*)
input_dir=`echo "$option" | sed 's/--pkglibdir=//'` ;;
--grub-mkimage=*)
grub_mkimage=`echo "$option" | sed 's/--grub-mkimage=//'` ;;
--image-type=*)
image_type=`echo "$option" | sed 's/--image-type=//'`
case "$image_type" in
floppy|cdrom) ;;
*)
echo "Unknown image type \`$image_type'" 1>&2
exit 1 ;;
esac ;;
--emulation=*)
emulation=`echo "$option" | sed 's/--emulation=//'`
case "$emulation" in
floppy|none) ;;
*)
echo "Unknown emulation type \`$emulation'" 1>&2
exit 1 ;;
esac ;;
-*)
echo "Unrecognized option \`$option'" 1>&2
usage
exit 1
;;
*)
if test "x$output_image" != x; then
echo "Unrecognized option \`$option'" 1>&2
usage
exit 1
fi
output_image="${option}" ;;
esac
done
if test "x$output_image" = x; then
usage
exit 1
fi
aux_dir=`mktemp -d`
mkdir -p ${aux_dir}/boot/grub
for file in ${input_dir}/*.mod ${input_dir}/efiemu??.o \
${input_dir}/command.lst ${input_dir}/moddep.lst ${input_dir}/fs.lst \
${input_dir}/handler.lst ${input_dir}/parttool.lst; do
if test -f "$file"; then
cp -f "$file" ${aux_dir}/boot/grub/
fi
done
modules="biosdisk `cat ${input_dir}/partmap.lst` ${modules}"
for i in ${modules} ; do
echo "insmod $i"
done > ${aux_dir}/boot/grub/grub.cfg
for d in ${overlay}; do
echo "Overlaying $d"
cp -dpR "${d}"/* "${aux_dir}"/
done
if [ "x${image_type}" = xfloppy -o "x${emulation}" = xfloppy ] ; then
# build memdisk
memdisk_img=`mktemp`
tar -C ${aux_dir} -cf ${memdisk_img} boot
rm -rf ${aux_dir}
# build core.img
core_img=`mktemp`
${grub_mkimage} -d ${input_dir}/ -m ${memdisk_img} -o ${core_img} memdisk tar
rm -f ${memdisk_img}
# build floppy image
if [ "x${image_type}" = xcdrom ] ; then
floppy_dir=`mktemp -d`
floppy_img=${floppy_dir}/grub_floppy.img
else
floppy_img=${output_image}
fi
cat ${input_dir}/boot.img ${core_img} /dev/zero | dd bs=1024 count=1440 > ${floppy_img}
rm -f ${core_img}
if [ "x${image_type}" = xcdrom ] ; then
# build iso image
genisoimage -b grub_floppy.img \
-o ${output_image} -r -J ${floppy_dir}
rm -rf ${floppy_dir}
fi
else
# build core.img
core_img=`mktemp`
${grub_mkimage} -d ${input_dir}/ -o ${core_img} biosdisk iso9660
# build grub_eltorito image
cat ${input_dir}/cdboot.img ${core_img} > ${aux_dir}/boot/grub/grub_eltorito
rm -f ${core_img}
# build iso image
genisoimage -b boot/grub/grub_eltorito \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-o ${output_image} -r -J ${aux_dir}
rm -rf ${aux_dir}
fi
exit 0