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