44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
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#!/bin/sh
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#
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# Updates an installer initrd with a new loader binary
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# Usage: upd-initrd <initrd> <binary> <outfile>
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#
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# Copyright (C) 2005 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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# Author(s): Jeremy Katz <katzj@redhat.com>
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#
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if [ $# -ne 3 ]; then
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echo "Usage: $0 <initrd> <binary> <outfile>"
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exit 1
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fi
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INITRD=`readlink -f $1`
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BIN=`readlink -f $2`
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if [ -f $3 ]; then
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OUT=`readlink -f $3`
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else
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OUT=`readlink -f .`/$3
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fi
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tmpdir=$(mktemp -d)
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pushd $tmpdir
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zcat $INITRD |cpio -id
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strip -s -o sbin/$(basename $BIN) $BIN
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(find . |cpio -c -o |gzip -9) > $OUT
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popd
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rm -rf $tmpdir
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