72 lines
1.7 KiB
Bash
Executable File
72 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# upd-bootimage
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#
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# Copyright (C) 2007 Red Hat, Inc. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it 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,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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, see <http://www.gnu.org/licenses/>.
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#
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if [ -z "$1" ]; then
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echo "$0: <image> <binary> [<initrdpath>]"
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exit 1
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fi
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if [ ! -f $1 ]; then
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echo "$1 doesn't exist"
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exit 1
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fi
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MNTPOINT=/tmp/updboottree.$$
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INITRD=/tmp/updboottree.$$.initrd
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LOOPMNT=/tmp/updboottree.$$.initrdmnt
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rm -rf $MNTPOINT $LOOPMNT
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mkdir $MNTPOINT $LOOPMNT
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mount -t vfat -o loop $1 $MNTPOINT
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gunzip < $MNTPOINT/initrd.img > $INITRD
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mount -o loop $INITRD $LOOPMNT
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FROM=$2
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TO=$FROM
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if [ $(echo $FROM | cut -d- -f1) = loader ]; then
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TO=loader
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fi
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if [ ! -x $LOOPMNT/sbin/$TO ]; then
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echo "$LOOPMNT/sbin/$TO doesn't exist"
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else
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cp $FROM $FROM.foo
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strip $FROM.foo
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install $FROM.foo $LOOPMNT/sbin/$TO
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rm -f $FROM.foo
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fi
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umount $LOOPMNT
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gzip -9 < $INITRD > $INITRD.new
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cp $INITRD.new $MNTPOINT/initrd.img
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if [ -f $MNTPOINT/efi/boot/initrd.img ]; then
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cp $INITRD.new $MNTPOINT/efi/boot/initrd.img
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fi
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umount $MNTPOINT
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if [ -n "$3" -a -f "$3" ]; then
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echo "Replacing $3"
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cp -f $INITRD.new $3
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fi
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rm -rf $MNTPOINT $LOOPMNT $INITRD $INITRD.new
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