5fb9f532f0
update_verifier should be backward compatible to not reject legacy
care_map.txt from old releases, which could otherwise fail to boot into
the new release.
For example, we've changed the care_map format between N and O. An O
update_verifier would fail to work with an N care_map.txt - a) we have
switched update_verifier to read from device mapper in O; b) the last
few blocks that contain metadata can't be read via device mapper. This
could be a result of sideloading an O OTA while the device having a
pending N update.
Bug: 63544345
Test: As follows on sailfish:
1. Flash the device with this CL;
2. Put a copy of N care_map.txt at /data/ota_package/. Restore the
permissions properly ('cache' group);
3. `adb reboot bootloader`;
4. `fastboot set_active <current_slot>`
5. Device boots up into home screen, with a warning in logcat that says
it has skipped legacy care_map.txt.
Change-Id: I6acc88c9e655a9245e6531f176fef7953953935f
(cherry picked from commit 5a1dee01df)
The Recovery Image
Quick turn-around testing
mm -j && m ramdisk-nodeps && m recoveryimage-nodeps
# To boot into the new recovery image
# without flashing the recovery partition:
adb reboot bootloader
fastboot boot $ANDROID_PRODUCT_OUT/recovery.img
Running the tests
# After setting up environment and lunch.
mmma -j bootable/recovery
# Running the tests on device.
adb root
adb sync data
# 32-bit device
adb shell /data/nativetest/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest/recovery_component_test/recovery_component_test
# Or 64-bit device
adb shell /data/nativetest64/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest64/recovery_component_test/recovery_component_test
Running the manual tests
recovery-refresh and recovery-persist executables exist only on systems without
/cache partition. And we need to follow special steps to run tests for them.
-
Execute the test on an A/B device first. The test should fail but it will log some contents to pmsg.
-
Reboot the device immediately and run the test again. The test should save the contents of pmsg buffer into /data/misc/recovery/inject.txt. Test will pass if this file has expected contents.
ResourceTest validates whether the png files are qualified as background text
image under recovery.
1. `adb sync data` to make sure the test-dir has the images to test.
2. The test will automatically pickup and verify all `_text.png` files in
the test dir.