initrd-mod scripts for opennSUSE (and possibly RedHat)

initrd-mod-abort.sh

#!/bin/bash -e
set -o pipefail

if [ $# -ne 0 ]; then
	echo "Usage: ${0##*/}" >&2
	exit 1
fi

EARLY_CPIO_DIR=.initrd-mod-early-cpio
ARCHIVE_DIR=.initrd-mod-archive

if [ ! -e "$EARLY_CPIO_DIR" -a ! -e "$ARCHIVE_DIR" ]; then
	echo "No initrd mod in progress; nothing to do" >&2
	exit 0
fi

rm -rf "$EARLY_CPIO_DIR" "$ARCHIVE_DIR"

initrd-mod-finish.sh

#!/bin/bash -e
set -o pipefail

if [ $# -ne 1 ]; then
	echo "Usage: ${0##*/} <initramfs-file>" >&2
	exit 1
fi

EARLY_CPIO_DIR=.initrd-mod-early-cpio
ARCHIVE_DIR=.initrd-mod-archive

if [ ! -e "$EARLY_CPIO_DIR" ]; then
	echo "ERROR: $EARLY_CPIO_DIR directory does not exist; was initrd-mod-start run?" >&2
	exit 1
fi

if [ ! -e "$ARCHIVE_DIR" ]; then
	echo "ERROR: $ARCHIVE_DIR directory does not exist; was initrd-mod-start run?" >&2
	exit 1
fi

FILE="$(readlink -f "$1")"

if [ -e "$FILE" -a ! -f "$FILE" ]; then
	echo "ERROR: $FILE already exists, and is not a regular file" >&2
	exit 1
fi

pushd "$EARLY_CPIO_DIR" >/dev/null
find . | cpio -o -H newc >"$FILE" 2>/dev/null
popd >/dev/null

pushd "$ARCHIVE_DIR" >/dev/null
find . | cpio -o -H newc 2>/dev/null | xz -0 --format lzma --stdout >>"$FILE"
popd >/dev/null

rm -rf "$EARLY_CPIO_DIR" "$ARCHIVE_DIR"

initrd-mod-start.sh

#!/bin/bash -e
set -o pipefail

if [ $# -ne 1 ]; then
	echo "Usage: ${0##*/} <initramfs-file>" >&2
	exit 1
fi

EARLY_CPIO_DIR=.initrd-mod-early-cpio
ARCHIVE_DIR=.initrd-mod-archive

if [ -e "$EARLY_CPIO_DIR" ]; then
	echo "ERROR: $EARLY_CPIO_DIR directory already exists; run either initrd-mod-abort or initrd-mod-finish" >&2
	exit 1
fi

if [ -e "$ARCHIVE_DIR" ]; then
	echo "ERROR: $ARCHIVE_DIR directory already exists; run either initrd-mod-abort or initrd-mod-finish" >&2
	exit 1
fi

FILE="$(readlink -f "$1")"

if [ ! -f "$FILE" ]; then
	echo "ERROR: $FILE does not exist, or is not a regular file" >&2
	exit 1
fi

mkdir "$EARLY_CPIO_DIR" "$ARCHIVE_DIR"

pushd "$EARLY_CPIO_DIR" >/dev/null
cpio -imd <"$FILE" 2>/dev/null
popd >/dev/null

pushd "$ARCHIVE_DIR" >/dev/null
/usr/lib/dracut/skipcpio "$FILE" | xzcat | cpio -imd 2>/dev/null
popd >/dev/null

echo "Files available in $ARCHIVE_DIR"