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- #!/bin/sh
- #
- # The Qubes OS Project, http://www.qubes-os.org
- #
- # Copyright (C) 2010 Joanna Rutkowska <joanna@invisiblethingslab.com>
- #
- # 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; 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 program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- #
- #
- #
- # This script can be used to patch the initramfs of the Qubes AppVM
- # It inserts an additional script that is responsible for setting up
- # COW-based root fs and VM private fs
- #
- INITRAMFS=$1
- INITRAMFS_QUBES=$2
- QUBES_COW_SETUP_FILE=$3
- TMP_DIR=`mktemp -d /tmp/qubes-initramfs-patching-XXXXXXX`
- if [ $# != 3 ] ; then
- echo "usage: $0 <original initramfs to patch> <patched initramfs file> <qubes_cow_setup_file>"
- exit 0
- fi
- if [ x$INITRAMFS = x ] ; then
- echo "INITRAMFS missing!"
- exit 1
- fi
- if [ x$INITRAMFS_QUBES = x ] ; then
- echo "INITRAMFS_QUBES missing!"
- exit 1
- fi
- if [ x$QUBES_COW_SETUP_FILE = x ] ; then
- echo "$QUBES_COW_SETUP_FILE missing!"
- exit 1
- fi
- ID=$(id -ur)
- if [ $ID != 0 ] ; then
- echo "This script should be run as root user. Apparently the initramfs files must have root.root owener..."
- exit 1
- fi
- mkdir $TMP_DIR/initramfs.qubes || exit 1
- cp $INITRAMFS $TMP_DIR/initramfs.cpio.gz
- pushd $TMP_DIR/initramfs.qubes
- gunzip < ../initramfs.cpio.gz | cpio -i --quiet || exit 1
- cp $QUBES_COW_SETUP_FILE pre-udev/90_qubes_cow_setup.sh || exit 1
- find ./ | cpio -H newc -o --quiet > $TMP_DIR/initramfs.qubes.cpio || exit 1
- popd
- gzip $TMP_DIR/initramfs.qubes.cpio || exit 1
- mv $TMP_DIR/initramfs.qubes.cpio.gz $INITRAMFS_QUBES || exit 1
- rm -fr $TMP_DIR || exit 1
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