home *** CD-ROM | disk | FTP | other *** search
- #!/bin/sh
- # -*- coding: utf-8 -*-
- #
- # «casper-new-uuid» - Creates and injects new UUIDs for casper disks
- #
- # Create new UUIDs for disks to prevent conflicts and booting the wrong casper
- # directory. Particularly useful in creating recovery disks that need to be
- # able to also work with recovery partitioning schemes.
- #
- # Copyright (C) 2008, Dell Inc.
- #
- # Author:
- # - Mario Limonciello <Mario_Limonciello@Dell.com>
- #
- # This script 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; either version 2 of the License, or at your option)
- # any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License along
- # with this application; if not, write to the Free Software Foundation, Inc., 51
- # Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- ##################################################################################
-
- set -e
-
- help() {
- echo
- echo "USAGE: $0 initrd.{l,g}z <path-to-new-initrd> <path-to-new-casper-uuid> "
- echo
- echo "initrd.{l,g}z is the absolute path to the original gzipped or lzmaed initramfs"
- echo "<path-to-new-initrd> is the destination directory for the new compressed initramfs"
- echo "<path-to-new-casper-uuid> is the destination directory for the new casper-uuid-TYPE "
- echo
- echo "if either path is absent, they will end up in the current directory "
- echo "TYPE is determined by an already existing casper-uuid-* or by 'uname -s'"
- }
-
- if [ "$#" = "0" ] || [ "x$1" = x-h ] || [ "x$1" = x--help ]; then
- help
- exit 3
- fi
-
- CWD=`pwd`
- TEMPDIR=`mktemp -d /tmp/uuid-XXXXXX`
- TYPE=`uname -r | cut -d '-' -f 3`
-
- if echo "$1" | grep ".lz$" >/dev/null; then
- COMPRESSOR="lzma"
- SUFFIX=".lz"
- elif echo "$1" | grep ".gz$" >/dev/null; then
- COMPRESSOR="gzip"
- SUFFIX=".gz"
- else
- echo "Unsupported archive type."
- exit 2
- fi
- if [ -z "$2" ] || [ ! -d "$2" ] || [ "$2" = "." ]; then
- COMPRESS_DIR="$CWD"
- else
- COMPRESS_DIR="$2"
- fi
-
- if [ -z "$3" ] || [ ! -d "$3" ] || [ "$3" = "." ]; then
- CASPERDIR="$CWD"
- else
- CASPERDIR="$3"
- fi
-
- cd "$TEMPDIR"
- $COMPRESSOR -cd "$1" -S "$SUFFIX" | cpio -id
- uuidgen -r > conf/uuid.conf
- find . | cpio --quiet --dereference -o -H newc | $COMPRESSOR -9c > "$COMPRESS_DIR/initrd$SUFFIX"
- if [ "$(ls "$CASPERDIR/casper-uuid"-* >/dev/null 2>&1 | wc -l)" = 1 ]; then
- cp conf/uuid.conf "$CASPERDIR/casper-uuid"-*
- else
- cp conf/uuid.conf "$CASPERDIR/casper-uuid-$TYPE"
- fi
- cd "$CWD"
- rm -rf "$TEMPDIR"
-