image_singing: remove align_rootfs.sh
No references to this. From commit history looks to be something
Mario-only?
Remove it and let's see where that goes...
BUG=chromium:1085310
BRANCH=none
TEST=emerge vboot_reference
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I7621d4673a09b85f59cdc69de1652e0b72ca1862
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2211957
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/image_signing/align_rootfs.sh b/scripts/image_signing/align_rootfs.sh
deleted file mode 100755
index e8056a3..0000000
--- a/scripts/image_signing/align_rootfs.sh
+++ /dev/null
@@ -1,150 +0,0 @@
-#!/bin/bash
-
-# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Script to preserve the on-disk file layout of the specified image and
-# the latest shipping image. This is accomplished by copying the new rootfs
-# over a template rootfs (aka the latest shipping image) to preserve as much
-# of the metadata from the shipping rootfs as possible. This will ensure
-# minimal disk shuffling when applying the auto-update.
-#
-# Note: This script does not recompute the rootfs hash.
-
-# Load common library. This should be the first executable line.
-# The path to common.sh should be relative to your script's location.
-. "$(dirname "$0")/common.sh"
-
-load_shflags
-
-# Flags.
-DEFINE_string image "" \
- "The image that needs to be aligned to the latest shipping image."
-DEFINE_string src_image "" \
- "The image to align against."
-
-# Copies the rootfs from |SRC_IMAGE| to the |DST_ROOT_FS| and preserves as
-# much of the file system metadata in |DST_ROOT_FS| as possible.
-# Args: SRC_IMAGE DST_ROOT_FS
-copy_root_fs() {
- local src_image=$1
- local dst_root_fs=$2
-
- # Mount the src and dst rootfs.
- local src_root_fs_dir=$(mktemp -d "/tmp/align_root_fs_src_mount_dir.XXXX")
- add_cleanup_action "sudo rm -rf \"${src_root_fs_dir}\""
- mount_image_partition_ro "${src_image}" 3 "${src_root_fs_dir}"
- add_cleanup_action "sudo umount \"${src_root_fs_dir}\""
-
- local dst_root_fs_dir=$(mktemp -d "/tmp/align_root_fs_dst_mount_dir.XXXX")
- add_cleanup_action "sudo rm -rf \"${dst_root_fs_dir}\""
- sudo mount -o loop "${dst_root_fs}" "${dst_root_fs_dir}" -o loop
- add_cleanup_action "sudo umount \"${dst_root_fs_dir}\""
-
- # Temporarily make immutable files on the dst rootfs mutable.
- # We'll need to track these files in ${immutable_files} so we can make them
- # mutable again.
- local immutable_files=()
- sudo find "${dst_root_fs_dir}" -xdev -type f |
- while read -r file; do
- immutable=$(sudo lsattr "${file}" | cut -d' ' -f1 | grep -q i ; echo $?)
- if [ $immutable -eq 0 ]; then
- immutable_files=("${immutable_files[@]}" "${file}")
- sudo chattr -i "${file}"
- fi
- done
-
- # Copy files from the src rootfs over top of dst rootfs.
- # Use the --inplace flag to preserve as much of the file system metadata
- # as possible.
- sudo rsync -v -a -H -A -x --force --inplace --numeric-ids --delete \
- "${src_root_fs_dir}"/ "${dst_root_fs_dir}"
-
- # Make immutable files immutable again.
- for file in ${immutable_files[*]} ; do
- sudo chattr +i "${file}"
- done
-
- # Unmount the src and dst root fs so that we can replace the rootfs later.
- perform_latest_cleanup_action
- perform_latest_cleanup_action
- perform_latest_cleanup_action
- perform_latest_cleanup_action
-}
-
-# Zeroes the rootfs free space in the specified image.
-# Args: IMAGE
-zero_root_fs_free_space() {
- local image=$1
- local root_fs_dir=$(mktemp -d "/tmp/align_rootfs_zero_free_space_dir.XXXX")
- add_cleanup_action "sudo rm -rf \"${root_fs_dir}\""
- mount_image_partition "${image}" 3 "${root_fs_dir}"
- add_cleanup_action "sudo umount \"${root_fs_dir}\""
-
- info "Zeroing free space in rootfs"
- sudo dd if=/dev/zero of="${root_fs_dir}/filler" oflag=sync bs=4096 || true
- sudo rm -f "${root_fs_dir}/filler"
- sudo sync
-
- perform_latest_cleanup_action
- perform_latest_cleanup_action
-}
-
-main() {
- # Parse command line.
- FLAGS "$@" || exit 1
- eval set -- "${FLAGS_ARGV}"
-
- # Only now can we die on error. shflags functions leak non-zero error codes,
- # so will die prematurely if 'set -e' is specified before now.
- set -e
-
- # Make sure we have the required parameters.
- if [ -z "${FLAGS_image}" ]; then
- die "--image is required."
- fi
-
- if [ ! -f "${FLAGS_image}" ]; then
- die "Cannot find the specified image."
- fi
-
- if [ -z "${FLAGS_src_image}" ]; then
- die "--src_image is required."
- fi
-
- if [ ! -f "${FLAGS_src_image}" ]; then
- die "Cannot find the specified source image."
- fi
-
- # Make sure the two rootfs are the same size.
- # If they are not, then there is nothing for us to do.
- # Note: Exit with a zero code so we do not break the build workflow.
- local src_root_fs_size=$(partsize "${FLAGS_src_image}" 3)
- local new_root_fs_size=$(partsize "${FLAGS_image}" 3)
- if [ ${src_root_fs_size} -ne ${new_root_fs_size} ]; then
- warn "The source rootfs and the new rootfs are not the same size."
- exit 0
- fi
-
- # Extract the rootfs from the src image and use this as a template
- # for the new image.
- temp_root_fs=$(mktemp "/tmp/align_rootfs_temp_rootfs.XXXX")
- add_cleanup_action "sudo rm -f \"${temp_root_fs}\""
- info "Extracting rootfs from src image"
- extract_image_partition "${FLAGS_src_image}" 3 "${temp_root_fs}"
- enable_rw_mount "${temp_root_fs}"
-
- # Perform actual copy of the two root file systems.
- info "Copying rootfs"
- copy_root_fs "${FLAGS_image}" "${temp_root_fs}"
-
- # Replace the rootfs in the new image with the aligned version.
- info "Replacing rootfs"
- replace_image_partition "${FLAGS_image}" 3 "${temp_root_fs}"
-
- # Zero rootfs free space.
- zero_root_fs_free_space "${FLAGS_image}"
-}
-
-main "$@"
