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okuji
f66b84f480
* util/grub-image.in: Check stage2 instead of stage2.c to determine where the script is invoked, because srcdir may not be used for the compilation.
139 lines
3.8 KiB
Bash
139 lines
3.8 KiB
Bash
#! /bin/sh
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# grub-image - Create a GRUB boot filesystem image and tarball
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# Gordon Matzigkeit <gord@fig.org>, 2000-07-25
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#
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# Copyright (C) 2000, 2002 Free Software Foundation, Inc.
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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prefix=@prefix@
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exec_prefix=@exec_prefix@
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sbindir=@sbindir@
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datadir=@datadir@
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PACKAGE=@PACKAGE@
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host_cpu=@host_cpu@
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host_os=@host_os@
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host_vendor=@host_vendor@
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context=${host_cpu}-${host_vendor}
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pkgdatadir=${datadir}/${PACKAGE}/${context}
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mke2fs=/sbin/mke2fs
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progname=`echo "$0" | sed 's%^.*/%%'`
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thisdir=`echo "$0" | sed 's%/[^/]*$%%'`
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test "X$thisdir" = "X$0" && thisdir=.
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# See if we were invoked from within the build directory, and if so,
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# use the built files rather than the installed ones.
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if test -f $thisdir/../stage2/stage2; then
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grub_shell="$thisdir/../grub/grub"
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stage1dir="$thisdir/../stage1"
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stage2dir="$thisdir/../stage2"
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else
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grub_shell=${sbindir}/grub
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stage1dir="$pkgdatadir"
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stage2dir="$pkgdatadir"
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fi
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# Exit on any error.
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set -e
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# Get GRUB's version from the Grub shell, since we use the
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# installed files.
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VERSION=`$grub_shell --version | sed -e 's/^.* \([0-9.]*\).*$/\1/'`
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test "X$VERSION" != X
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bootdir=${PACKAGE}-${VERSION}-${context}
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image=$bootdir.ext2fs
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# Create the tarball.
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if test ! -f $bootdir.tar.gz; then
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echo "# Creating \`$bootdir.tar.gz'"
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mkdir -p $bootdir/boot/grub
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cp -p $stage1dir/stage1 $stage2dir/*_stage1_5 $stage2dir/stage2 \
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$bootdir/boot/grub
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test ! -f menu.lst || cp -p menu.lst $bootdir/boot/grub
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trap "rm -f $bootdir.tar.gz" 0
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GZIP=-9 tar -zcf $bootdir.tar.gz $bootdir
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trap '' 0
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rm -rf $bootdir
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fi
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# Create a new filesystem image of the specified size.
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if test ! -f $image; then
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tarsize=`zcat $bootdir.tar.gz | wc -c`
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# Add about 30% (20% overhead plus 10% breathing room), and convert
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# to kilobytes. This factor was determined empirically.
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SIZE=`expr $tarsize \* 130 / 100 / 1024`k
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echo "# Creating $SIZE disk image \`$image'"
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trap "rm -f $image" 0
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dd if=/dev/zero of=$image bs=$SIZE count=1 >/dev/null
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$mke2fs -F $image
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trap '' 0
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fi
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# Attempt to mount the image.
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echo "# Mounting \`$image'"
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test -d $bootdir || mkdir $bootdir
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case "$host_os" in
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gnu*)
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settrans -a $bootdir /hurd/ext2fs $image
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umount="settrans -a $bootdir"
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;;
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linux*)
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# This requires running as root, and using the loop device.
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i=0
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while test -e /dev/loop$i; do
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if /sbin/losetup /dev/loop$i $image; then
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break
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fi
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i=`expr $i + 1`
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done
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# Silly losetup doesn't report an error!
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mount /dev/loop$i $bootdir
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umount="umount $bootdir && /sbin/losetup -d /dev/loop$i && trap '' 0"
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;;
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*)
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echo "$progname: Mounting \`$image' under \`$host_os' is not supported" 1>&2
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exit 1
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;;
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esac
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trap "$umount" 0
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# Extract our tarball into the image, then unmount it.
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echo "# Copying files into \`$image':"
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tar -zxvf $bootdir.tar.gz
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echo "# \`$image' usage:"
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df $bootdir
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eval $umount
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rmdir $bootdir || :
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# Use the GRUB shell to properly set up GRUB on the image.
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echo "# Installing GRUB in \`$image'"
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cat <<EOF | $grub_shell --batch --device-map=/dev/null
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device (fd0) $image
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root (fd0)
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install /boot/grub/stage1 (fd0) /boot/grub/stage2
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quit
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EOF
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exit 0
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