opensde-nopast/target/share/initrd.in

# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# 
# Filename: target/share/initrd.in
# Copyright (C) 2006 The OpenSDE Project
# Copyright (C) 2004 - 2006 The T2 SDE 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 ---

# extend_initrd initrd-filename from-dir
# adds additional content to an existing initrd (cpio image)
extend_initrd()
{
	local initrd=$1
	local from=$2

	echo "Extending initrd archive ..."
	echo "Initrd: $initrd"
	echo "  from: $from"

	(
	  # extract archive
	  rm -rf $initrd.dir ;  mkdir $initrd.dir
	  cd $initrd.dir

	  gunzip -c < $initrd | cpio -i

	  # copy extensions
	  cd $from
	  cp -a . $initrd.dir
	
	  # create archive
	  cd $initrd.dir
	  find * | cpio -o -H newc --file $initrd.cpio
	  gzip -c -9 $initrd.cpio > $initrd
	)

	# cleanup
	rm $initrd.cpio
	rm -rf $initrd.dir
}