blob: 1c5b6811f6ee22dcc042ffff05703c8a70285e64 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#!/bin/bash
# Copyright (c) 2011 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 convert a recovery image into an SSD image usable by factory.
# TODO(gauravsh): crosbug.com/14790 (Merge this with
# convert_recovery_to_ssd.sh)
# Load common constants and variables.
. "$(dirname "$0")/common_minimal.sh"
usage() {
cat <<EOF
Usage: $PROG <signed_recovery_image> <original_image_zip> <output_ssd_image>
Converts <signed_recovery_image> into a full SSD image usable by factory. Uses
stateful partition from SSD image <original_image_zip>.
EOF
}
if [ $# -ne 3 ]; then
usage
exit 1
fi
type -P cgpt &>/dev/null ||
{ echo "cgpt tool must be in the path"; exit 1; }
# Abort on errors.
set -e
RECOVERY_IMAGE=$1
IMAGE_ZIP=$2
SSD_IMAGE=$3
work_dir=$(make_temp_dir)
echo "Extracting original SSD image."
unzip -o $IMAGE_ZIP chromiumos_base_image.bin -d ${work_dir}
mv ${work_dir}/chromiumos_base_image.bin ${SSD_IMAGE}
kerna_offset=$(partoffset ${RECOVERY_IMAGE} 2)
kernb_offset=$(partoffset ${RECOVERY_IMAGE} 4)
# Kernel partition sizes should be the same.
kern_size=$(partsize ${RECOVERY_IMAGE} 2)
rootfs=$(make_temp_file)
echo "Replacing RootFS on the SSD with that of the RECOVERY image"
extract_image_partition ${RECOVERY_IMAGE} 3 ${rootfs}
replace_image_partition ${SSD_IMAGE} 3 ${rootfs}
kerna=$(make_temp_file)
echo "Replacing KernelA on the SSD with that of the RECOVERY image"
extract_image_partition ${RECOVERY_IMAGE} 4 ${kerna}
replace_image_partition ${SSD_IMAGE} 2 ${kerna}
# Overwrite the kernel vblock on the created SSD image.
stateful_dir=$(make_temp_dir)
tmp_vblock=$(make_temp_file)
mount_image_partition_ro ${RECOVERY_IMAGE} 1 ${stateful_dir}
sudo cp ${stateful_dir}/vmlinuz_hd.vblock ${tmp_vblock}
echo "Overwriting kernel vblock with SSD kernel vblock"
sudo dd if=${tmp_vblock} of=${SSD_IMAGE} seek=${kerna_offset} bs=512 \
conv=notrunc
sudo umount -d ${stateful_dir}
# Zero out Kernel B partition.
echo "Zeroing out Kernel partition B"
sudo dd if=/dev/zero of=${SSD_IMAGE} seek=${kernb_offset} bs=512 \
count=${kern_size} conv=notrunc
echo "${RECOVERY_IMAGE} was converted to a factory SSD image: ${SSD_IMAGE}"
|
