34 lines
834 B
Markdown
34 lines
834 B
Markdown
|
# extract_android_ota_payload.py
|
||
|
|
|
||
|
|
Extract Android firmware images from an OTA payload.bin file.
|
||
|
|
|
||
|
|
With the introduction of the A/B system update, the OTA file format changed.
|
||
|
|
This tool allows to extract and decompress the firmware images packed using the 'brillo' toolset.
|
||
|
|
|
||
|
|
Incremental firmware images are not supported (source_copy, source_bsdiff operations).
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```
|
||
|
|
$ extract_android_ota_payload.py <payload.bin> [target_dir]
|
||
|
|
<payload.bin> : file extracted from the OTA zip file or the OTA zip file
|
||
|
|
<target_dir> : output directory for the extracted file
|
||
|
|
```
|
||
|
|
|
||
|
|
## Example
|
||
|
|
|
||
|
|
```
|
||
|
|
$ python3 extract_android_ota_payload.py marlin-ota-opm4.171019.021.d1-fd6998a5.zip /tmp/
|
||
|
|
Extracting 'boot.img'
|
||
|
|
Extracting 'system.img'
|
||
|
|
Extracting 'vendor.img'
|
||
|
|
...
|
||
|
|
Extracting 'modem.img'
|
||
|
|
```
|
||
|
|
|
||
|
|
## Dependencies
|
||
|
|
|
||
|
|
```
|
||
|
|
python-protobuf,bzcat,xzcat
|
||
|
|
```
|