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66c440d687
Review URL: http://chromereview.prom.corp.google.com/1177024 git-svn-id: svn://chrome-svn/chromeos/trunk@91 06c00378-0e64-4dae-be16-12b19f9950a1
77 lines
2.0 KiB
Bash
Executable File
77 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Script to modify a keyfob-based chromeos system image for testability.
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# Load common constants. This should be the first executable line.
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# The path to common.sh should be relative to your script's location.
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. "$(dirname "$0")/common.sh"
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DEFINE_string image "rootfs.image" \
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"Location of the rootfs raw image file"
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# Parse command line
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FLAGS "$@" || exit 1
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eval set -- "${FLAGS_ARGV}"
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# Make sure anything mounted in the rootfs is cleaned up ok on exit.
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cleanup_rootfs_mounts() {
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# Occasionally there are some daemons left hanging around that have our
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# root image file system open. We do a best effort attempt to kill them.
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PIDS=`sudo lsof -t "${ROOT_FS_DIR}" | sort | uniq`
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for pid in ${PIDS}
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do
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local cmdline=`cat /proc/$pid/cmdline`
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echo "Killing process that has open file on our rootfs: $cmdline"
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! sudo kill $pid # Preceded by ! to disable ERR trap.
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done
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}
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cleanup_rootfs_loop() {
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sudo umount "${LOOP_DEV}"
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sleep 1 # in case $LOOP_DEV is in use
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sudo losetup -d "${LOOP_DEV}"
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}
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cleanup() {
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# Disable die on error.
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set +e
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cleanup_rootfs_mounts
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if [ -n "${LOOP_DEV}" ]
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then
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cleanup_rootfs_loop
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fi
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# Turn die on error back on.
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set -e
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}
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# main process begins here.
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set -e
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trap cleanup EXIT
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ROOT_FS_DIR="`dirname ${FLAGS_image}`/rootfs"
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mkdir -p "${ROOT_FS_DIR}"
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LOOP_DEV=`sudo losetup -f`
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sudo losetup "${LOOP_DEV}" "${FLAGS_image}"
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sudo mount "${LOOP_DEV}" "${ROOT_FS_DIR}"
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MOD_SCRIPTS_ROOT="${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts"
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sudo mkdir -p "${ROOT_FS_DIR}/modify_scripts"
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sudo mount --bind "${MOD_SCRIPTS_ROOT}" "${ROOT_FS_DIR}/modify_scripts"
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# Run test setup script inside chroot jail to modify the image
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sudo chroot "${ROOT_FS_DIR}" "/modify_scripts/test_setup.sh"
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sudo umount "${ROOT_FS_DIR}/modify_scripts"
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sudo rmdir "${ROOT_FS_DIR}/modify_scripts"
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cleanup
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trap - EXIT
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