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#!/bin/sh
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: package/.../mkinitramfs/install/D%sbindir_mkinitramfs.sh
# Copyright (C) 2007 - 2008 The OpenSDE Project
#
# More information can be found in the files COPYING and README.
#
# This program 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; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---
root=
kernever=
template=
running=
mkinitrd_usage() {
cat <<EOT
Usage: ${0##*/} [ -R <root> ] [ -T <template> ] [<kernelver>]
root.....: location of the sandbox to work in (default: /)
template.: file to use as template for this image
(default: \$root/boot/initrd.img)
kernelver: kerner version to use when grabbing the modules.
(default: $( uname -r ))
EOT
}
while [ $# -gt 0 ]; do
case "$1" in
-R) root="$2"; shift ;;
-T) template="$2"; shift ;;
[0-9]*) kernelver="$1" ;;
*) mkinitrd_usage; exit 1 ;;
esac
shift
done
# $root - root of the sandbox
[ "$root" ] || root="/"
if [ ! -d "$root" ]; then
echo "ERROR: '$root' is not a directory"
mkinitrd_usage
exit 2
else
root=$( cd "$root"; pwd -P )
[ "$root" != "/" ] || root=""
[ -z "$root" ] || echo "root: $root"
fi
# $kernelver - kernel version, only useful if we have modules
if [ -z "$kernelver" ]; then
kernelver=$( uname -r )
running=yes
fi
# $template - cpio.gz file to use as base for this initrd
[ "$template" ] || template="${root}/boot/initrd.img"
if [ ! -r "$template" ]; then
echo "ERROR: template '$template' not found."
mkinitrd_usage
exit 3
else
# skip readlink -f as dependency
x="${template##*/}"
[ "$x" != "$template" ] || template="$PWD/$x"
[ "${template:0:1}" == "/" ] || template="$PWD/$template"
template="$( cd "${template%/*}"; pwd -P )/$x"
fi
moddir="${root}/lib/modules/$kernelver"
sysmap="${root}/boot/System.map_$kernelver"
libdir="${root}D_libdir"
if [ -d "$moddir" ]; then
echo "kernel: $kernelver, module dir: ${moddir#$root/}"
if [ ! -r "$sysmap" ]; then
echo "ERROR: System.map file not found."
mkinitrd_usage
exit 4
fi
else
echo "kernel: $kernelver, no modules found."
moddir=
fi
if [ $UID -ne 0 ]; then
echo "ERROR: only root can run $0."
mkinitrd_usage
exit 5
fi
for tool in mktemp cpio gzip gunzip; do
if [ -z "$( type -p $tool )" ]; then
echo "ERROR: $tool is no available"
exit 6
fi
done
tmpdir=$( mktemp -d )
olddir="$PWD"
cd "$tmpdir"
# here we go, extract the template
echo "Extracting '${template#$root/}' into '$tmpdir'..."
gunzip -c < "$template" | cpio -i
if [ $? -eq 0 ]; then
errno=0
# prepare the environment for the plugins
export root tmpdir kernelver moddir libdir sysmap running
# call the plugins
plugindir="etc/mkinitramfs.d"
[ -d "$plugindir" ] || plugindir="$libdir"
for x in "$plugindir"/*.sh; do
[ -s "$x" ] || continue
echo "Calling ${x#$plugindir/}"
$SHELL "$x" || errno=$?
[ $errno -eq 0 ] || break
done
# repack if everything went well
if [ $errno -eq 0 ]; then
initrd=boot/initrd-$kernelver.img
echo "Expanded size: $( du -sh . | cut -d' ' -f1 )"
echo "Repacking '$tmpdir' into \$root/$initrd"
find . | grep -v '^./etc/mkinitramfs.d' |
cpio -o -H newc | gzip -9 > "$root/$initrd.$$"
if [ $? -eq 0 ]; then
mv -f "$root/$initrd.$$" "$root/$initrd"
du -sh "$root/$initrd"
cd "$olddir"; rm -rf "$tmpdir"
echo "done."
exit 0
else
rm -f "$root/$initrd.$$"
fi
fi
fi
cd "$olddir"; rm -rf "$tmpdir"
echo "failed."
exit 1