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-# SystemUpdaterSample
-
-This app demonstrates how to use Android system updates APIs to install
-[OTA updates](https://source.android.com/devices/tech/ota/). It contains a sample
-client for `update_engine` to install A/B (seamless) updates and a sample of
-applying non-A/B updates using `recovery`.
-
-A/B (seamless) update is available since Android Nougat (API 24), but this sample
-targets the latest android.
-
-
-## Running on a device
-
-The commands expected to be run from `$ANDROID_BUILD_TOP`.
-
-1. Compile the app `$ mmma bootable/recovery/sample_updater`.
-2. Install the app to the device using `$ adb install <APK_PATH>`.
-3. Add update config files.
-
-
-## Update Config file
-
-Directory can be found in logs or on UI. Usually json config files are located in
-`/data/user/0/com.example.android.systemupdatersample/files/configs/`. Example file
-is located at `res/raw/sample.json`.
-
-
-## Development
-
-- [x] Create a UI with list of configs, current version,
-      control buttons, progress bar and log viewer
-- [x] Add `PayloadSpec` and `PayloadSpecs` for working with
-      update zip file
-- [x] Add `UpdateConfig` for working with json config files
-- [x] Add applying non-streaming update
-- [ ] Add applying streaming update
-- [ ] Prepare streaming update (partially downloading package)
-- [ ] Add tests for `MainActivity`
-- [ ] Add stop/reset the update
-- [ ] Verify system partition checksum for package
-- [ ] HAL compatibility check
-- [ ] Change partition demo
-- [ ] Add non-A/B updates demo
-
-
-## Running tests
-
-1. Build `$ mmma bootable/recovery/sample_updater/`
-2. Install app
-   `$ adb install $OUT/system/app/SystemUpdaterSample/SystemUpdaterSample.apk`
-3. Install tests
-   `$ adb install $OUT/testcases/SystemUpdaterSampleTests/SystemUpdaterSampleTests.apk`
-4. Run tests
-   `$ adb shell am instrument -w com.example.android.systemupdatersample.tests/android.support.test.runner.AndroidJUnitRunner`
-5. Run a test file
-   ```
-   $ adb shell am instrument \
-     -w com.example.android.systemupdatersample.tests/android.support.test.runner.AndroidJUnitRunner \
-     -c com.example.android.systemupdatersample.util.PayloadSpecsTest
-   ```
-
-
-## Getting access to `update_engine` API and read/write access to `/data`
-
-Run adb shell as a root, and set SELinux mode to permissive (0):
-
-```txt
-$ adb root
-$ adb shell
-# setenforce 0
-# getenforce
-```