AB升级(1): 使用Python脚本模拟升级
升级过程system/update_engine/scripts/update_device.py --file full-ota-xxx.zip
执行命令以后，终端打印信息，Android系统中没有任何提示信息
python system/update_engine/scripts/update_device.py out/target/product/dl36/dl36-ota-1640654433.zipINFO:root:Running: adb shell su 0 update_engine_client --helpINFO:root:Running: adb reverse tcp:1234 tcp:391331234INFO:root:Running: adb shell su 0 update_engine_client --update --follow --payload=http://127.0.0.1:1234/payload --offset=1808 --size=1345770359 --headers="FILE_HASH=clGjz1kJ/Toxcax0Ap8d2cCVupI1xoBBXgqOzNK+IeQ=FILE_SIZE=1345770359METADATA_HASH=EG0gbI1eQ5PCQhcOovjiP8zK1H14T6CL8znOwAnQRnE=METADATA_SIZE=98416USER_AGENT=Dalvik (something, something)NETWORK_ID=0" onStatusUpdate(UPDATE_STATUS_IDLE (0), 0) onStatusUpdate(UPDATE_STATUS_UPDATE_AVAILABLE (2), 0) onStatusUpdate(UPDATE_STATUS_CLEANUP_PREVIOUS_UPDATE (11), 0)127.0.0.1 - - "GET /payload HTTP/1.1" 206 -INFO:root:Serving request for /payload from out/target/product/dl36/dl36-ota-1640654433.zip onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 1.33515e-05) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 9.8739e-05) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.0101061) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.0201135)... ... onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.960808) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.970815) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.980823) onStatusUpdate(UPDATE_STATUS_DOWNLOADING (3), 0.99083) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.01) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.02) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.04) ... ... onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.95) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.96) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.97) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.98) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 0.99) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 1) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 1) onStatusUpdate(UPDATE_STATUS_FINALIZING (5), 1) onStatusUpdate(UPDATE_STATUS_UPDATED_NEED_REBOOT (6), 0) onPayloadApplicationComplete(ErrorCode::kSuccess (0))INFO:root:Running: adb reverse --remove tcp:1234INFO:root:Server Terminated
重启前
adb shell getprop | grep slot_suffix
手动重启以后，通知栏会出现"Finishing system update..."字样
adb shell getprop | grep slot_suffix
系统成功由slot A切换到slot B
环境问题
执行脚本出现如下错误：
ImportError: No module named google.protobu
update_device.py以及相关脚本都是使用python2编写，如果使用python3需要大量改动。需要安装3.17.3这个是python2支持的protobuf最后一个版本，不然会出现各种编译的问题。
sudo pip install protobuf==3.17.3
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