android13

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liiir1985 7f62dcda9f initial		2024-06-22 20:45:49 +08:00
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prebuilt/gpt/1_3080	initial	2024-06-22 20:45:49 +08:00
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Android.mk	initial	2024-06-22 20:45:49 +08:00
README.md	initial	2024-06-22 20:45:49 +08:00
emulator_boot_test.sh	initial	2024-06-22 20:45:49 +08:00
extract_ext4_image.sh	initial	2024-06-22 20:45:49 +08:00
extract_head_tail.sh	initial	2024-06-22 20:45:49 +08:00
mk_combined_img.py	initial	2024-06-22 20:45:49 +08:00
mk_qemu_image.sh	initial	2024-06-22 20:45:49 +08:00
mk_qemu_ramdisk.py	initial	2024-06-22 20:45:49 +08:00
mk_vbmeta_boot_params.sh	initial	2024-06-22 20:45:49 +08:00
mk_verified_boot_params.sh	initial	2024-06-22 20:45:49 +08:00

README.md

Combine images

Usage

python mk_combined_img.py [--input <filename> --output <filename>] The defaults of --input and --output are:

./image_config for --input
$OUT/combined.img for --output

Prerequisite

The script will try to get environment variables $ANDROID_HOST_OUT and $OUT If you have built android these variables should exist and in place. Make sure simg2img and sgdisk are in $ANDROID_HOST_OUT, if not, do following:

$ cd $ANDROID_BUILD_TOP

$ m simg2img

$ m sgdisk

Functionality

Combine multiple images into one image with multiple partitions
Sparse image detection

The format of input config file

Each line with the order of </path/to/image> <partition label> <partition number>

<partition number> should be within range of [1, number of lines] and cannot be repeated.

Config file example

$OUT/sparse_system.img      system      1
$OUT/encryptionkey.img      encrypt     4
$OUT/vendor.img             vendor      5
$OUT/sparse_userdata.img    userdata    3
$OUT/cache.img              cache       2

TODO

Output in sparse format
Detect images that already have partitions in them.
Auto genereate config file