#!/bin/sh
# -*- coding: utf-8 -*-
#
-# «casper-new-uuid» - Creates and injects new UUIDs for casper disks
+# «live-new-uuid» - Creates and injects new UUIDs for live disks
#
-# Create new UUIDs for disks to prevent conflicts and booting the wrong casper
+# Create new UUIDs for disks to prevent conflicts and booting the wrong live
# directory. Particularly useful in creating recovery disks that need to be
# able to also work with recovery partitioning schemes.
#
help() {
echo
- echo "USAGE: $0 initrd.gz <path-to-new-initrd.gz> <path-to-new-casper-uuid> "
+ echo "USAGE: $0 initrd.{l,g}z <path-to-new-initrd> <path-to-new-live-uuid> "
echo
- echo "initrd.gz is the absolute path to the original gzipped initramfs"
- echo "<path-to-new-initrd.gz> is the destination directory for the new gzipped initramfs"
- echo "<path-to-new-casper-uuid> is the destination directory for the new casper-uuid-TYPE "
+ echo "initrd.{l,g}z is the absolute path to the original gzipped or lzmaed initramfs"
+ echo "<path-to-new-initrd> is the destination directory for the new compressed initramfs"
+ echo "<path-to-new-live-uuid> is the destination directory for the new live-uuid-TYPE "
echo
echo "if either path is absent, they will end up in the current directory "
- echo "TYPE is determined by an already existing casper-uuid-* or by 'uname -s'"
+ echo "TYPE is determined by an already existing live-uuid-* or by 'uname -s'"
}
if [ "$#" = "0" ] || [ "x$1" = x-h ] || [ "x$1" = x--help ]; then
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" ] || [ "$2" = "." ]; then
- GZIPDIR="$CWD"
+ COMPRESS_DIR="$CWD"
else
- GZIPDIR="$2"
+ COMPRESS_DIR="$2"
fi
if [ -z "$3" ] || [ ! -d "$3" ] || [ "$3" = "." ]; then
- CASPERDIR="$CWD"
+ LIVEDIR="$CWD"
else
- CASPERDIR="$3"
+ LIVEDIR="$3"
fi
cd "$TEMPDIR"
-zcat "$1" | cpio -id
+$COMPRESSOR -cd "$1" -S "$SUFFIX" | cpio -id
uuidgen -r > conf/uuid.conf
-find . | cpio --quiet --dereference -o -H newc | gzip > "$GZIPDIR/initrd.gz"
-if [ "$(ls "$CASPERDIR/casper-uuid"-* >/dev/null 2>&1 | wc -l)" = 1 ]; then
- cp conf/uuid.conf "$CASPERDIR/casper-uuid"-*
+find . | cpio --quiet --dereference -o -H newc | $COMPRESSOR -9c > "$COMPRESS_DIR/initrd$SUFFIX"
+if [ "$(ls "$LIVEDIR/live-uuid"-* >/dev/null 2>&1 | wc -l)" = 1 ]; then
+ cp conf/uuid.conf "$LIVEDIR/live-uuid"-*
else
- cp conf/uuid.conf "$CASPERDIR/casper-uuid-$TYPE"
+ cp conf/uuid.conf "$LIVEDIR/live-uuid-$TYPE"
fi
cd "$CWD"
rm -rf "$TEMPDIR"