61 lines
1.6 KiB
Bash
61 lines
1.6 KiB
Bash
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#!/bin/bash
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#
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# Create an initrd directory if one does not already exist.
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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, you can access it online at
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# http://www.gnu.org/licenses/gpl-2.0.html.
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#
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# Copyright (C) IBM Corporation, 2013
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#
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# Author: Connor Shu <Connor.Shu@ibm.com>
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D=tools/testing/selftests/rcutorture
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# Prerequisite checks
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[ -z "$D" ] && echo >&2 "No argument supplied" && exit 1
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if [ ! -d "$D" ]; then
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echo >&2 "$D does not exist: Malformed kernel source tree?"
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exit 1
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fi
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if [ -d "$D/initrd" ]; then
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echo "$D/initrd already exists, no need to create it"
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exit 0
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fi
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T=${TMPDIR-/tmp}/mkinitrd.sh.$$
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trap 'rm -rf $T' 0 2
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mkdir $T
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cat > $T/init << '__EOF___'
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#!/bin/sh
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while :
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do
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sleep 1000000
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done
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__EOF___
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# Try using dracut to create initrd
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command -v dracut >/dev/null 2>&1 || { echo >&2 "Dracut not installed"; exit 1; }
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echo Creating $D/initrd using dracut.
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# Filesystem creation
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dracut --force --no-hostonly --no-hostonly-cmdline --module "base" $T/initramfs.img
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cd $D
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mkdir initrd
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cd initrd
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zcat $T/initramfs.img | cpio -id
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cp $T/init init
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echo Done creating $D/initrd using dracut
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exit 0
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