grub/util/i386/pc/grub-mkrescue.in
robertmh 8af2ab7bad 2007-06-11 Robert Millan <rmh@aybabtu.com>
* util/i386/pc/grub-mkrescue.in: Pad both floppy images with zeroes,
	not just the cdrom one.
2007-06-11 20:01:09 +00:00

129 lines
3.4 KiB
Bash

#! /bin/sh -e
# Make GRUB rescue image
# Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St - Suite 330, Boston, MA 02110, USA.
# 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
--pkglibdir=DIR use images from directory DIR instead of ${pkglibdir}
--grub-mkimage=FILE use FILE as grub-mkimage
--image-type=TYPE select floppy or cdrom (default)
grub-mkimage generates a bootable rescue image of the specified type.
Report bugs to <grub-devel@gnu.org>.
EOF
}
image_type=cdrom
input_dir=${pkglibdir}
grub_mkimage=grub-mkimage
# Check the arguments.
for option in "$@"; do
case "$option" in
-h | --help)
usage
exit 0 ;;
-v | --version)
echo "grub-install (GNU GRUB ${PACKAGE_VERSION})"
exit 0 ;;
--modules=*)
modules=`echo "$option" | sed 's/--modules=//'` ;;
--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 \`$image_type'" 1>&2
exit 1 ;;
esac ;;
-*)
echo "Unrecognized option \`$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
if [ "x${modules}" = "x" ] ; then
modules=`cd ${input_dir}/ && ls *.mod`
fi
if [ "x${image_type}" = "xfloppy" ] ; then
floppy_image=${output_image}
else
floppy_image=`mktemp`
fi
core_img=`mktemp`
${grub_mkimage} -d ${input_dir}/ -o ${core_img} ${modules}
cat ${input_dir}/boot.img ${core_img} /dev/zero | dd bs=1024 count=1440 > $floppy_image
rm -f ${core_img}
if [ "x${image_type}" = "xfloppy" ] ; then
exit 0
fi
iso_dir=`mktemp -d`
cp $floppy_image ${iso_dir}/floppy.img
genisoimage -b floppy.img -o ${output_image} -r ${iso_dir}
rm -rf ${iso_dir}
rm -f ${floppy_image}
exit 0