preface
In fact, the V-AB upgrade scheme has been introduced as early as 7.0, but it is not forced to be enabled. It is still compatible with the previous / cache partition upgrade method.
Simple process and precautions for Android recovery update
Therefore, at the beginning, follow the old idea. After solving various permissions, you finally find that the log prompt cannot find the / cache partition. Later, it was found that,
Compared with Android 10.0, the Recovery partition and cache partition of Android 11.0 have been deleted.
AB scheme introduction
AB scheme is a dual partition dual system. Each image is dual, corresponding to two partitions respectively.
Introduction to V-AB scheme
V-AB means that the image in the terminal does not correspond to two physical partitions, but is divided into two logical partitions in SUPER, but only
An entity image data (A has entity data, B is A virtual device, or A is A virtual device, and B has entity data). In the V-AB scheme
Partition A is named A-SLOT and partition B is named B-SLOT. Spiral switching and upgrading between two slots, and the terminal equipment is in operation during upgrading
The line is on one SLOT, and the background upgrades another idle SLOT. Refer to Table 1-1 for the status of A/B slots during upgrading. V-AB upgrade
See Figure 1-1 for the architecture of the scheme.
| operation | A-SLOT | B-SLOT |
|---|---|---|
| First boot | Run the current system | free |
| First upgrade | Run the current system | Upgrade B |
| After upgrade and restart | free | Run the current system |
| Second upgrade | Upgrade A | Run the current system |
| After upgrade and restart | Run the current system | free |
Table 1-1 status of A/B slots during upgrade
Figure 1-1 V-AB upgrade scheme architecture
System in SUPER virtual frame_ b,System_ext_b,Vendor_b,Product_b. When the phone is turned on, there is no mirror in the SUPER partition
Like data, only logical device B-SLOT is divided. When the upgrade of B-SLOT is completed, the data of B-SLOT is available, while the data of A-SLOT is deleted
Delete, only A-SLOT logical device nodes are retained, and there is only one image file in SUPER.
V-AB scheme upgrade process
Figure 1-2 V-AB upgrade process
The upgrading steps of V-AB scheme are as follows:
Step 1 after triggering the upgrade action, check whether the user space can meet the upgrade requirements.
− if yes, download the upgrade package update zip.
− if not, terminate the upgrade.
Step 2 upgrade program updata_engine updates the upgrade package Zip for verification.
− if the verification passes, continue the upgrade process.
− if the verification fails, terminate the upgrade.
Step 3 upgrade program updata_engine marks the SLOT ready for upgrade as unsuccessful.
Step 4 upgrade the image payload Bin for verification.
− if the verification passes, continue to upgrade.
− if the verification fails, terminate the upgrade.
Step 5 the upgrade program upgrades the SLOT to be upgraded and takes a snapshot of the two logical partitions in SUPER.
Step 6 the upgrade program verifies the data in the upgraded partition, and prompts the user to restart after verification.
Step 7 after restarting, the upgrade program merges the logical partition B-SLOT in SUPER. Number of delta s deleted after merge
According to, start a new system program.
----End
Key points of V-AB implementation
Partition configuration and naming
Except for the SUPER partition, all other partitions are configured as double copies, and the partition naming suffix must be_ a,_ b character. Compared to Android
10.0, the Recovery partition and cache partition of Android 11.0 have been deleted.
SUPER is a single physical partition, and there are two logical partitions inside the SUPER partition.
When implementing SUPER partition, it is necessary to configure single physical partition and double logical partition internally, and only one logical partition has the number of mirrors
According to. The size of the SUPER partition is configured as the size of "single image+4M metadata" data. SUPER partition during upgrade
The merge action is executed after the restart, that is, the SUPER partition is upgraded after the restart. If SUPER partition
If the upgrade fails, the system rollback can also be realized, and the rollback protection mechanism can be switched to the previous system.
bootcontrol hal is implemented, and bootcontrol 1 is extended to support V-AB scheme 1 hal.
As the HAL layer bootcontrol in the V-AB upgrade process, it plays a connecting role in the upgrade process. Pass during upgrade
The bootcontrol interface writes the upgrade status data to misc. During startup, bootloader controls the system by reading misc data
The system starts the logical partition of A-SLOT or B-SLOT. On Android 11.0 project, boot control1.0 is extended to support V-AB scheme 1 interface.
When upgrading a SUPER partition, you need to record the upgrade status of the upgraded SUPER partition.
Packaging instruction
There is no change in the instruction, which is consistent with the previous Q version
Whole package make -j16 otapackage Difference package ./build/tools/releasetools/ota_from_target_files -v -i v1.zip --block -p out/host/linux-x86 -k build/target/product/security/testkey v2.zip update.zip
Modification list
device/mediatek/system/common/device.mk device/mediatek/sepolicy/basic/non_plat/update_engine.te system/sepolicy/prebuilts/api/30.0/private/domain.te system/sepolicy/private/domain.te
The user version does not compile update by default_ engine_ Client. In order to quickly verify OTA with instructions, we compile and open the sub module.
alps\device\mediatek\system\common\device.mk
PRODUCT_PACKAGES += \ update_engine \ update_engine_client \ update_engine_sideload \ update_verifier PRODUCT_HOST_PACKAGES += \ delta_generator \ shflags \ brillo_update_payload \ bsdiff \ simg2img PRODUCT_PACKAGES_DEBUG += \ update_engine_client \ bootctl
After successful compilation, the instruction file is located in/ out/target/product/xxx/system/bin/update_engine_client
After burning, the adb shell executes update_engine_client --help to view specific parameter definitions
Execute the upgrade instructions as follows
update_engine_client --payload=file:///sdcard/payload.bin --update --headers=" FILE_HASH=EL4p2lSCrEoyjczfBEi7J6mVZLZvP4PBgwyxn5t1/WI= FILE_SIZE=657924722 METADATA_HASH=dLph3Mh2Rh2qEU3qdh25vJg3Q+LbXMT1kkVCm17mQeQ= METADATA_SIZE=50204"
Full after compiling OTA_ xxxxx-ota-mp1V8241. Zip copy and unzip to get the corresponding payload in the instruction Bin file
And the required file size, hash and other information values payload_properties.txt
– payload corresponds to the bin file to be upgraded. I put it in the sdcard and directory here, so it is / sdcard / payload bin
– headers correspond to payload_properties.txt, pay attention to line breaks in copying
The log corresponding to the upgrade is as follows
2021-06-20 13:36:39.625 718-718/? I/update_engine: [INFO:main.cc(54)] A/B Update Engine starting
2021-06-20 13:36:39.815 718-718/? I/update_engine: [INFO:boot_control_android.cc(70)] Loaded boot control hidl hal.
2021-06-20 13:36:39.863 718-718/? I/update_engine: [INFO:daemon_state_android.cc(43)] Booted in dev mode.
2021-06-20 13:36:40.016 718-718/? I/update_engine: [INFO:daemon_state_android.cc(44)] Booted non-official build.
2021-06-20 13:36:40.088 718-718/? I/update_engine: [INFO:update_attempter_android.cc(1010)] Scheduling CleanupPreviousUpdateAction.
2021-06-20 13:36:40.162 718-718/? I/update_engine: [INFO:action_processor.cc(51)] ActionProcessor: starting CleanupPreviousUpdateAction
2021-06-20 13:36:40.201 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(82)] Starting/resuming CleanupPreviousUpdateAction
2021-06-20 13:36:58.232 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(137)] Boot completed, waiting on markBootSuccessful()
2021-06-20 13:36:58.246 718-718/? I/update_engine: EnsureMetadataMounted does nothing in Android mode.
2021-06-20 13:36:58.288 718-718/? I/update_engine: Read merge statistics file failed: No such file or directory
2021-06-20 13:36:58.335 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(206)] Waiting for any previous merge request to complete. This can take up to several minutes.
2021-06-20 13:36:58.392 718-718/? E/update_engine: [ERROR:cleanup_previous_update_action.cc(240)] Previous update has not been completed, not cleaning up
2021-06-20 13:36:58.413 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(397)] Not reporting merge stats because state is Initiated
2021-06-20 13:36:58.444 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished last action CleanupPreviousUpdateAction with code ErrorCode::kSuccess
2021-06-20 13:36:58.475 718-718/? I/update_engine: [INFO:update_attempter_android.cc(522)] Processing Done.
2021-06-20 13:36:58.486 718-718/? I/update_engine: [INFO:update_attempter_android.cc(662)] Terminating cleanup previous update.
2021-06-20 13:37:33.922 718-718/? I/update_engine: [INFO:prefs.cc(122)] update-state-next-operation not present in /data/misc/update_engine/prefs
2021-06-20 13:37:33.935 718-718/? I/update_engine: [INFO:update_attempter_android.cc(280)] Using this install plan:
2021-06-20 13:37:33.948 718-718/? I/update_engine: [INFO:install_plan.cc(91)] InstallPlan: new_update, version: , source_slot: A, target_slot: B, url: file:///sdcard/payload.bin, payload: (size: 657924722, metadata_size: 50204, metadata signature: , hash: 10BE29DA5482AC4A328DCCDF0448BB27A99564B66F3F83C1830CB19F9B75FD62, payload type: unknown), hash_checks_mandatory: false, powerwash_required: false, switch_slot_on_reboot: true, run_post_install: true, is_rollback: false, write_verity: true
2021-06-20 13:37:33.960 718-718/? I/update_engine: [INFO:metrics_utils.cc(363)] Number of Reboots during current update attempt = 0
2021-06-20 13:37:33.972 718-718/? I/update_engine: [INFO:metrics_utils.cc(371)] Payload Attempt Number = 1
2021-06-20 13:37:33.984 718-718/? I/update_engine: [INFO:metrics_utils.cc(388)] Update Monotonic Timestamp Start = 1/1/1970 0:01:05 GMT
2021-06-20 13:37:33.994 718-718/? I/update_engine: [INFO:metrics_utils.cc(397)] Update Boot Timestamp Start = 1/1/1970 0:01:05 GMT
2021-06-20 13:37:34.001 718-718/? I/update_engine: [INFO:update_attempter_android.cc(648)] Scheduling an action processor start.
2021-06-20 13:37:34.009 718-718/? I/update_engine: [INFO:action_processor.cc(51)] ActionProcessor: starting UpdateBootFlagsAction
2021-06-20 13:37:34.017 718-718/? I/update_engine: [INFO:update_boot_flags_action.cc(45)] Marking booted slot as good.
2021-06-20 13:37:34.035 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished UpdateBootFlagsAction with code ErrorCode::kSuccess
2021-06-20 13:37:34.043 718-718/? I/update_engine: [INFO:action_processor.cc(143)] ActionProcessor: starting CleanupPreviousUpdateAction
2021-06-20 13:37:34.051 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(82)] Starting/resuming CleanupPreviousUpdateAction
2021-06-20 13:37:34.057 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(137)] Boot completed, waiting on markBootSuccessful()
2021-06-20 13:37:34.065 718-718/? I/update_engine: EnsureMetadataMounted does nothing in Android mode.
2021-06-20 13:37:34.072 718-718/? I/update_engine: Read merge statistics file failed: No such file or directory
2021-06-20 13:37:34.079 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(206)] Waiting for any previous merge request to complete. This can take up to several minutes.
2021-06-20 13:37:34.086 718-718/? E/update_engine: [ERROR:cleanup_previous_update_action.cc(240)] Previous update has not been completed, not cleaning up
2021-06-20 13:37:34.093 718-718/? I/update_engine: [INFO:cleanup_previous_update_action.cc(397)] Not reporting merge stats because state is Initiated
2021-06-20 13:37:34.100 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished CleanupPreviousUpdateAction with code ErrorCode::kSuccess
2021-06-20 13:37:34.106 718-718/? I/update_engine: [INFO:action_processor.cc(143)] ActionProcessor: starting InstallPlanAction
2021-06-20 13:37:34.112 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished InstallPlanAction with code ErrorCode::kSuccess
2021-06-20 13:37:34.118 718-718/? I/update_engine: [INFO:action_processor.cc(143)] ActionProcessor: starting DownloadAction
2021-06-20 13:37:34.124 718-718/? I/update_engine: [INFO:install_plan.cc(91)] InstallPlan: new_update, version: , source_slot: A, target_slot: B, url: file:///sdcard/payload.bin, payload: (size: 657924722, metadata_size: 50204, metadata signature: , hash: 10BE29DA5482AC4A328DCCDF0448BB27A99564B66F3F83C1830CB19F9B75FD62, payload type: unknown), hash_checks_mandatory: false, powerwash_required: false, switch_slot_on_reboot: true, run_post_install: true, is_rollback: false, write_verity: true
2021-06-20 13:37:34.130 718-718/? I/update_engine: [INFO:download_action.cc(199)] Marking new slot as unbootable
2021-06-20 13:37:34.138 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(45)] starting first transfer
2021-06-20 13:37:34.146 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(74)] starting transfer of range 0+657924722
2021-06-20 13:37:34.148 718-718/? I/update_engine: type=1400 audit(0.0:139): avc: denied { dac_read_search } for capability=2 scontext=u:r:update_engine:s0 tcontext=u:r:update_engine:s0 tclass=capability permissive=1
2021-06-20 13:37:34.161 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 0/? operations, 16384/657924722 bytes downloaded (0%), overall progress 0%
2021-06-20 13:37:34.152 718-718/? I/update_engine: type=1400 audit(0.0:141): avc: denied { read } for name="primary" dev="tmpfs" ino=27616 scontext=u:r:update_engine:s0 tcontext=u:object_r:mnt_user_file:s0 tclass=lnk_file permissive=1
2021-06-20 13:37:34.174 718-718/? I/update_engine: [INFO:delta_performer.cc(520)] Manifest size in payload matches expected value from Omaha
2021-06-20 13:37:34.182 718-718/? I/update_engine: [INFO:delta_performer.cc(1693)] Verifying using certificates: /system/etc/security/otacerts.zip
2021-06-20 13:37:34.191 718-718/? I/update_engine: [INFO:payload_verifier.cc(102)] signature blob size = 267
2021-06-20 13:37:34.198 718-718/? I/update_engine: [INFO:payload_verifier.cc(118)] Truncating the signature to its unpadded size: 256.
2021-06-20 13:37:34.204 718-718/? I/update_engine: [INFO:payload_verifier.cc(129)] Verified correct signature 1 out of 1 signatures.
2021-06-20 13:37:34.210 718-718/? I/update_engine: [INFO:payload_metadata.cc(224)] Metadata hash signature matches value in Omaha response.
2021-06-20 13:37:34.220 718-718/? I/update_engine: [INFO:delta_performer.cc(1728)] Detected a 'full' payload.
2021-06-20 13:37:34.231 718-718/? I/update_engine: [INFO:prefs.cc(122)] dynamic-partition-metadata-updated not present in /data/misc/update_engine/prefs
2021-06-20 13:37:34.237 718-718/? I/update_engine: [INFO:delta_performer.cc(985)] Preparing partitions for new update. last hash = , new hash = EL4p2lSCrEoyjczfBEi7J6mVZLZvP4PBgwyxn5t1/WI=dLph3Mh2Rh2qEU3qdh25vJg3Q+LbXMT1kkVCm17mQeQ=
2021-06-20 13:37:34.306 718-718/? I/update_engine: EnsureMetadataMounted does nothing in Android mode.
2021-06-20 13:37:34.313 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(676)] Erasing AVB footer of system_other partition before update.
2021-06-20 13:37:34.320 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(577)] AVB is not enabled on system_other. Skip erasing.
2021-06-20 13:37:34.326 718-718/? I/update_engine: Update has been initiated, now canceling
2021-06-20 13:37:34.332 718-718/? I/update_engine: Removing all update state.
2021-06-20 13:37:34.338 718-718/? W/update_engine: Cannot read /metadata/ota/snapshot-boot: No such file or directory
2021-06-20 13:37:34.346 718-718/? W/update_engine: Failed to get flashing status
2021-06-20 13:37:34.353 718-718/? W/update_engine: Cannot read /metadata/ota/snapshot-boot: No such file or directory
2021-06-20 13:37:35.367 718-718/? I/update_engine: Successfully unmapped snapshot vendor_b
2021-06-20 13:37:35.375 718-718/? I/update_engine: Successfully unmapped snapshot product_b
2021-06-20 13:37:35.410 718-718/? I/update_engine: Successfully unmapped snapshot system_b
2021-06-20 13:37:35.500 718-718/? I/update_engine: Remaining free space for COW: 2580234240 bytes
2021-06-20 13:37:35.519 718-718/? I/update_engine: For partition product_b, device size = 245547008, snapshot size = 245547008, cow partition size = 246513664, cow file size = 0
2021-06-20 13:37:35.528 718-718/? I/update_engine: [liblp]Partition product_b-cow will resize from 0 bytes to 246513664 bytes
2021-06-20 13:37:35.534 718-718/? I/update_engine: Successfully created snapshot partition for product_b
2021-06-20 13:37:35.540 718-718/? I/update_engine: Remaining free space for COW: 2333720576 bytes
2021-06-20 13:37:35.563 718-718/? I/update_engine: For partition vendor_b, device size = 278073344, snapshot size = 278073344, cow partition size = 279166976, cow file size = 0
2021-06-20 13:37:35.572 718-718/? I/update_engine: [liblp]Partition vendor_b-cow will resize from 0 bytes to 279166976 bytes
2021-06-20 13:37:35.578 718-718/? I/update_engine: Successfully created snapshot partition for vendor_b
2021-06-20 13:37:35.584 718-718/? I/update_engine: Remaining free space for COW: 2054553600 bytes
2021-06-20 13:37:35.648 718-718/? I/update_engine: For partition system_b, device size = 1190064128, snapshot size = 1190064128, cow partition size = 1194717184, cow file size = 0
2021-06-20 13:37:35.657 718-718/? I/update_engine: [liblp]Partition system_b-cow will resize from 0 bytes to 1194717184 bytes
2021-06-20 13:37:35.662 718-718/? I/update_engine: Successfully created snapshot partition for system_b
2021-06-20 13:37:35.667 718-718/? I/update_engine: Allocating CoW images.
2021-06-20 13:37:35.672 718-718/? I/update_engine: Successfully created snapshot for product_b
2021-06-20 13:37:35.677 718-718/? I/update_engine: Successfully created snapshot for system_b
2021-06-20 13:37:35.683 718-718/? I/update_engine: Successfully created snapshot for vendor_b
2021-06-20 13:37:35.689 718-718/? I/update_engine: Successfully unmapped snapshot product_b
2021-06-20 13:37:35.744 718-718/? I/update_engine: Mapped COW device for product_b at /dev/block/dm-3
2021-06-20 13:37:35.753 718-718/? I/update_engine: Zero-filling COW device: /dev/block/dm-3
2021-06-20 13:37:35.782 718-718/? I/update_engine: Successfully unmapped snapshot vendor_b
2021-06-20 13:37:35.813 718-718/? I/update_engine: Mapped COW device for vendor_b at /dev/block/dm-3
2021-06-20 13:37:35.820 718-718/? I/update_engine: Zero-filling COW device: /dev/block/dm-3
2021-06-20 13:37:35.858 718-718/? I/update_engine: Successfully unmapped snapshot system_b
2021-06-20 13:37:35.891 718-718/? I/update_engine: Mapped COW device for system_b at /dev/block/dm-3
2021-06-20 13:37:35.899 718-718/? I/update_engine: Zero-filling COW device: /dev/block/dm-3
2021-06-20 13:37:35.925 718-718/? I/update_engine: [liblp]Updated logical partition table at slot 1 on device super
2021-06-20 13:37:35.932 718-718/? I/update_engine: Successfully created all snapshots for target slot _b
2021-06-20 13:37:35.938 718-718/? I/update_engine: [INFO:delta_performer.cc(1002)] PreparePartitionsForUpdate done.
2021-06-20 13:37:35.952 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:35.959 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] boot_b is not in super partition metadata.
2021-06-20 13:37:35.966 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:35.974 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:35.982 718-718/? I/update_engine: Successfully unmapped snapshot system_b
2021-06-20 13:37:36.014 718-718/? I/update_engine: [libfs_mgr]Created logical partition system_b-base on device /dev/block/dm-3
2021-06-20 13:37:36.046 718-718/? I/update_engine: Mapped COW device for system_b at /dev/block/dm-7
2021-06-20 13:37:36.085 718-718/? I/update_engine: Mapped system_b as snapshot device at /dev/block/dm-9
2021-06-20 13:37:36.094 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(173)] Succesfully mapped system_b to device mapper (force_writable = 1); device path at /dev/block/dm-9
2021-06-20 13:37:36.105 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.115 718-718/? I/update_engine: Successfully unmapped snapshot vendor_b
2021-06-20 13:37:36.147 718-718/? I/update_engine: [libfs_mgr]Created logical partition vendor_b-base on device /dev/block/dm-10
2021-06-20 13:37:36.180 718-718/? I/update_engine: Mapped COW device for vendor_b at /dev/block/dm-11
2021-06-20 13:37:36.219 718-718/? I/update_engine: Mapped vendor_b as snapshot device at /dev/block/dm-12
2021-06-20 13:37:36.227 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(173)] Succesfully mapped vendor_b to device mapper (force_writable = 1); device path at /dev/block/dm-12
2021-06-20 13:37:36.240 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.247 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] preloader_b is not in super partition metadata.
2021-06-20 13:37:36.254 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.262 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.269 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] md1img_b is not in super partition metadata.
2021-06-20 13:37:36.276 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.287 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.295 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] spmfw_b is not in super partition metadata.
2021-06-20 13:37:36.302 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.310 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.317 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] scp_b is not in super partition metadata.
2021-06-20 13:37:36.325 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.335 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.341 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] sspm_b is not in super partition metadata.
2021-06-20 13:37:36.348 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.357 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.364 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] gz_b is not in super partition metadata.
2021-06-20 13:37:36.371 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.379 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.385 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] lk_b is not in super partition metadata.
2021-06-20 13:37:36.392 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.401 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.408 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] dtbo_b is not in super partition metadata.
2021-06-20 13:37:36.414 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.426 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.434 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] tee_b is not in super partition metadata.
2021-06-20 13:37:36.440 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.448 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.454 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] vbmeta_b is not in super partition metadata.
2021-06-20 13:37:36.461 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.471 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.477 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] vbmeta_system_b is not in super partition metadata.
2021-06-20 13:37:36.484 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.492 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.499 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(948)] vbmeta_vendor_b is not in super partition metadata.
2021-06-20 13:37:36.505 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot A in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.513 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(319)] Loaded metadata from slot B in /dev/block/platform/bootdevice/by-name/super
2021-06-20 13:37:36.521 718-718/? I/update_engine: Successfully unmapped snapshot product_b
2021-06-20 13:37:36.552 718-718/? I/update_engine: [libfs_mgr]Created logical partition product_b-base on device /dev/block/dm-13
2021-06-20 13:37:36.586 718-718/? I/update_engine: Mapped COW device for product_b at /dev/block/dm-14
2021-06-20 13:37:36.626 718-718/? I/update_engine: Mapped product_b as snapshot device at /dev/block/dm-15
2021-06-20 13:37:36.638 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(173)] Succesfully mapped product_b to device mapper (force_writable = 1); device path at /dev/block/dm-15
2021-06-20 13:37:36.645 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new boot sha256: qOu0clVzMeWRGb5qmAg4KQx8lPZsRExxef5V/tlZRfg= size: 33554432
2021-06-20 13:37:36.651 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new system sha256: gkmjI/zQsuc4lijSzqPrJp6Ee+KOosLK7Xo7p0rlnBM= size: 1190064128
2021-06-20 13:37:36.657 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new vendor sha256: 1U/3goHzk9O4KitXEJOz8q1XfOFiKOMQ8tyKfAAYS44= size: 278073344
2021-06-20 13:37:36.662 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new preloader sha256: yutVrm+dfG8qSIlcSO5EQZi7/c2Nzs5NOYJsl6YObus= size: 237568
2021-06-20 13:37:36.669 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new md1img sha256: MHyfXRKbKYXXQv02cHDIbxYDq24HkmPDgR03Y9ZjdYM= size: 55320576
2021-06-20 13:37:36.674 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new spmfw sha256: CR6ZAuQzDvxgq9QXZD7q0Xhmd0VaoKUb4VgSfLL8SRc= size: 65536
2021-06-20 13:37:36.680 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new scp sha256: SFdoWNx3hD3Ust3nUAPQqfs18T9FYNcU/MnK/hI2yz4= size: 557056
2021-06-20 13:37:36.686 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new sspm sha256: cAV+KVAckounV6Ul4DVvS7O/Q3hksJ3+4tIVEYX+o0g= size: 438272
2021-06-20 13:37:36.693 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new gz sha256: OGcy94/b1I9qywvDFLiz75u1cebZFJVqIx5I8r95tUU= size: 2600960
2021-06-20 13:37:36.699 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new lk sha256: aOdoDRvTh6/bDsuaFtPMD3LGZG2XIQ1CHwX1ETr6cdY= size: 888832
2021-06-20 13:37:36.707 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new dtbo sha256: r+TMK8PXRzAa5Sn2cFz7ituqMmosdIG2xatYy2EaJ6s= size: 45056
2021-06-20 13:37:36.712 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new tee sha256: q3Xylq4v484FPdg3sJxKj7Ca6Ak/RUNSbTLI3ILz3mo= size: 139264
2021-06-20 13:37:36.718 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new vbmeta sha256: bTaeRfXuBryz52zd+W+O8HE2/SwufmdG8XfzsKeXX6k= size: 4096
2021-06-20 13:37:36.724 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new vbmeta_system sha256: z1ReCaQPeQUZ5GJQGJkI43rSuESH7q0ZCyxZPsNU4ug= size: 4096
2021-06-20 13:37:36.730 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new vbmeta_vendor sha256: pXHgSp3WYt+9QMN62wV/gjwbBNzj+UfFmMp/HyJTOOg= size: 4096
2021-06-20 13:37:36.736 718-718/? I/update_engine: [INFO:delta_performer.cc(451)] PartitionInfo new product sha256: h4gFK/IXRhBR1S2tedtSSsKsWpsiuUszJICluLu2aGE= size: 245547008
2021-06-20 13:37:36.742 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/boot_b partition without O_DSYNC
2021-06-20 13:37:36.751 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:37:36.759 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 16 operations to partition "boot"
2021-06-20 13:37:36.769 718-718/? I/update_engine: [INFO:delta_performer.cc(657)] Starting to apply update payload operations
2021-06-20 13:37:38.321 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/dm-9 partition without O_DSYNC
2021-06-20 13:37:38.332 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:37:38.338 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 568 operations to partition "system"
2021-06-20 13:37:47.700 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 88/874 operations (10%), 66535424/657924722 bytes downloaded (10%), overall progress 10%
2021-06-20 13:37:59.109 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 186/874 operations (21%), 131596288/657924722 bytes downloaded (20%), overall progress 20%
2021-06-20 13:38:12.117 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 263/874 operations (30%), 203948032/657924722 bytes downloaded (30%), overall progress 30%
2021-06-20 13:38:23.775 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 350/874 operations (40%), 264536064/657924722 bytes downloaded (40%), overall progress 40%
2021-06-20 13:38:36.430 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 455/874 operations (52%), 327745536/657924722 bytes downloaded (49%), overall progress 50%
2021-06-20 13:38:47.123 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 542/874 operations (62%), 388988928/657924722 bytes downloaded (59%), overall progress 60%
2021-06-20 13:38:54.513 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/dm-12 partition without O_DSYNC
2021-06-20 13:38:54.521 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:38:54.526 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 133 operations to partition "vendor"
2021-06-20 13:39:01.187 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 629/874 operations (71%), 460554240/657924722 bytes downloaded (70%), overall progress 70%
2021-06-20 13:39:10.996 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 717/874 operations (82%), 517799936/657924722 bytes downloaded (78%), overall progress 80%
2021-06-20 13:39:11.238 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/preloader_b partition without O_DSYNC
2021-06-20 13:39:11.248 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:11.254 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "preloader"
2021-06-20 13:39:11.291 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/md1img_b partition without O_DSYNC
2021-06-20 13:39:11.303 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:11.309 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 27 operations to partition "md1img"
2021-06-20 13:39:15.106 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/spmfw_b partition without O_DSYNC
2021-06-20 13:39:15.116 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.123 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "spmfw"
2021-06-20 13:39:15.146 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/scp_b partition without O_DSYNC
2021-06-20 13:39:15.156 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.164 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "scp"
2021-06-20 13:39:15.219 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/sspm_b partition without O_DSYNC
2021-06-20 13:39:15.227 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.234 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "sspm"
2021-06-20 13:39:15.290 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/gz_b partition without O_DSYNC
2021-06-20 13:39:15.301 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.308 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 2 operations to partition "gz"
2021-06-20 13:39:15.421 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/lk_b partition without O_DSYNC
2021-06-20 13:39:15.432 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.437 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "lk"
2021-06-20 13:39:15.524 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/dtbo_b partition without O_DSYNC
2021-06-20 13:39:15.535 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.542 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "dtbo"
2021-06-20 13:39:15.554 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/tee_b partition without O_DSYNC
2021-06-20 13:39:15.564 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.569 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "tee"
2021-06-20 13:39:15.596 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/vbmeta_b partition without O_DSYNC
2021-06-20 13:39:15.606 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.613 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "vbmeta"
2021-06-20 13:39:15.622 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/vbmeta_system_b partition without O_DSYNC
2021-06-20 13:39:15.634 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.641 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "vbmeta_system"
2021-06-20 13:39:15.651 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/platform/bootdevice/by-name/vbmeta_vendor_b partition without O_DSYNC
2021-06-20 13:39:15.659 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.665 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 1 operations to partition "vbmeta_vendor"
2021-06-20 13:39:15.675 718-718/? I/update_engine: [INFO:delta_performer.cc(385)] Opening /dev/block/dm-15 partition without O_DSYNC
2021-06-20 13:39:15.685 718-718/? I/update_engine: [INFO:delta_performer.cc(128)] Caching writes.
2021-06-20 13:39:15.691 718-718/? I/update_engine: [INFO:delta_performer.cc(397)] Applying 118 operations to partition "product"
2021-06-20 13:39:23.741 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 795/874 operations (90%), 592134144/657924722 bytes downloaded (90%), overall progress 90%
2021-06-20 13:39:35.736 718-718/? I/update_engine: [INFO:delta_performer.cc(209)] Completed 874/874 operations (100%), 657924722/657924722 bytes downloaded (100%), overall progress 100%
2021-06-20 13:39:35.743 718-718/? I/update_engine: [INFO:delta_performer.cc(1665)] Extracted signature data of size 267 at 657873984
2021-06-20 13:39:35.749 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(115)] Terminating transfer.
2021-06-20 13:39:35.756 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(177)] Received transfer terminated.
2021-06-20 13:39:35.762 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(129)] TransferEnded w/ code 200
2021-06-20 13:39:35.768 718-718/? I/update_engine: [INFO:multi_range_http_fetcher.cc(163)] Done w/ all transfers
2021-06-20 13:39:36.100 718-718/? I/update_engine: [INFO:delta_performer.cc(1693)] Verifying using certificates: /system/etc/security/otacerts.zip
2021-06-20 13:39:36.109 718-718/? I/update_engine: [INFO:payload_verifier.cc(102)] signature blob size = 267
2021-06-20 13:39:36.115 718-718/? I/update_engine: [INFO:payload_verifier.cc(118)] Truncating the signature to its unpadded size: 256.
2021-06-20 13:39:36.121 718-718/? I/update_engine: [INFO:payload_verifier.cc(129)] Verified correct signature 1 out of 1 signatures.
2021-06-20 13:39:36.126 718-718/? I/update_engine: [INFO:delta_performer.cc(1915)] Payload hash matches value in payload.
2021-06-20 13:39:36.132 718-718/? I/update_engine: [INFO:download_action.cc(400)] Collections of histograms for UpdateEngine.DownloadAction.
Histogram: UpdateEngine.DownloadAction.InstallOperation::REPLACE.Duration recorded 874 samples, mean = 114.1
0 -O (8 = 0.9%)
10 -----O (31 = 3.5%) {0.9%}
18 ---O (16 = 1.8%) {4.5%}
32 ------O (33 = 3.8%) {6.3%}
57 ----------------------------------------------O (273 = 31.2%) {10.1%}
101 ------------------------------------------------------------------------O (426 = 48.7%) {41.3%}
179 -------------O (77 = 8.8%) {90.0%}
317 -O (8 = 0.9%) {98.9%}
561 O (2 = 0.2%) {99.8%}
993 ...
2021-06-20 13:39:36.142 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished DownloadAction with code ErrorCode::kSuccess
2021-06-20 13:39:36.150 718-718/? I/update_engine: [INFO:action_processor.cc(143)] ActionProcessor: starting FilesystemVerifierAction
2021-06-20 13:39:36.156 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 0 (boot) on device /dev/block/platform/bootdevice/by-name/boot_b
2021-06-20 13:39:36.306 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of boot: qOu0clVzMeWRGb5qmAg4KQx8lPZsRExxef5V/tlZRfg=
2021-06-20 13:39:36.322 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 1 (system) on device /dev/block/dm-9
2021-06-20 13:39:44.426 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of system: gkmjI/zQsuc4lijSzqPrJp6Ee+KOosLK7Xo7p0rlnBM=
2021-06-20 13:39:44.772 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 2 (vendor) on device /dev/block/dm-12
2021-06-20 13:39:46.671 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of vendor: 1U/3goHzk9O4KitXEJOz8q1XfOFiKOMQ8tyKfAAYS44=
2021-06-20 13:39:46.761 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 3 (preloader) on device /dev/block/platform/bootdevice/by-name/preloader_b
2021-06-20 13:39:46.771 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of preloader: yutVrm+dfG8qSIlcSO5EQZi7/c2Nzs5NOYJsl6YObus=
2021-06-20 13:39:46.777 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 4 (md1img) on device /dev/block/platform/bootdevice/by-name/md1img_b
2021-06-20 13:39:47.012 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of md1img: MHyfXRKbKYXXQv02cHDIbxYDq24HkmPDgR03Y9ZjdYM=
2021-06-20 13:39:47.036 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 5 (spmfw) on device /dev/block/platform/bootdevice/by-name/spmfw_b
2021-06-20 13:39:47.044 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of spmfw: CR6ZAuQzDvxgq9QXZD7q0Xhmd0VaoKUb4VgSfLL8SRc=
2021-06-20 13:39:47.050 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 6 (scp) on device /dev/block/platform/bootdevice/by-name/scp_b
2021-06-20 13:39:47.061 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of scp: SFdoWNx3hD3Ust3nUAPQqfs18T9FYNcU/MnK/hI2yz4=
2021-06-20 13:39:47.069 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 7 (sspm) on device /dev/block/platform/bootdevice/by-name/sspm_b
2021-06-20 13:39:47.081 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of sspm: cAV+KVAckounV6Ul4DVvS7O/Q3hksJ3+4tIVEYX+o0g=
2021-06-20 13:39:47.091 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 8 (gz) on device /dev/block/platform/bootdevice/by-name/gz_b
2021-06-20 13:39:47.115 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of gz: OGcy94/b1I9qywvDFLiz75u1cebZFJVqIx5I8r95tUU=
2021-06-20 13:39:47.127 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 9 (lk) on device /dev/block/platform/bootdevice/by-name/lk_b
2021-06-20 13:39:47.146 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of lk: aOdoDRvTh6/bDsuaFtPMD3LGZG2XIQ1CHwX1ETr6cdY=
2021-06-20 13:39:47.154 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 10 (dtbo) on device /dev/block/platform/bootdevice/by-name/dtbo_b
2021-06-20 13:39:47.167 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of dtbo: r+TMK8PXRzAa5Sn2cFz7ituqMmosdIG2xatYy2EaJ6s=
2021-06-20 13:39:47.175 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 11 (tee) on device /dev/block/platform/bootdevice/by-name/tee_b
2021-06-20 13:39:47.186 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of tee: q3Xylq4v484FPdg3sJxKj7Ca6Ak/RUNSbTLI3ILz3mo=
2021-06-20 13:39:47.195 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 12 (vbmeta) on device /dev/block/platform/bootdevice/by-name/vbmeta_b
2021-06-20 13:39:47.203 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of vbmeta: bTaeRfXuBryz52zd+W+O8HE2/SwufmdG8XfzsKeXX6k=
2021-06-20 13:39:47.210 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 13 (vbmeta_system) on device /dev/block/platform/bootdevice/by-name/vbmeta_system_b
2021-06-20 13:39:47.217 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of vbmeta_system: z1ReCaQPeQUZ5GJQGJkI43rSuESH7q0ZCyxZPsNU4ug=
2021-06-20 13:39:47.223 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 14 (vbmeta_vendor) on device /dev/block/platform/bootdevice/by-name/vbmeta_vendor_b
2021-06-20 13:39:47.231 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of vbmeta_vendor: pXHgSp3WYt+9QMN62wV/gjwbBNzj+UfFmMp/HyJTOOg=
2021-06-20 13:39:47.238 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(117)] Hashing partition 15 (product) on device /dev/block/dm-15
2021-06-20 13:39:48.922 718-718/? I/update_engine: [INFO:filesystem_verifier_action.cc(237)] Hash of product: h4gFK/IXRhBR1S2tedtSSsKsWpsiuUszJICluLu2aGE=
2021-06-20 13:39:49.003 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished FilesystemVerifierAction with code ErrorCode::kSuccess
2021-06-20 13:39:49.009 718-718/? I/update_engine: [INFO:action_processor.cc(143)] ActionProcessor: starting PostinstallRunnerAction
2021-06-20 13:39:49.027 718-718/? I/update_engine: [INFO:postinstall_runner_action.cc(174)] Performing postinst (system/bin/otapreopt_script at /postinstall/system/bin/otapreopt_script) installed on device /dev/block/dm-9 and mountable device /dev/block/dm-9
2021-06-20 13:39:49.042 718-718/? I/update_engine: [INFO:postinstall_runner_action.cc(181)] Format file for new system/bin/otapreopt_script is: data
2021-06-20 13:42:07.332 718-718/? I/update_engine: [INFO:subprocess.cc(157)] Subprocess output:
Complete or error.
2021-06-20 13:42:07.351 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(873)] Snapshot writes are done.
2021-06-20 13:42:07.359 718-718/? I/update_engine: Wipe is not scheduled. Deleting forward merge indicator.
2021-06-20 13:42:07.383 718-718/? I/update_engine: [INFO:postinstall_runner_action.cc(371)] All post-install commands succeeded
2021-06-20 13:42:07.391 718-718/? I/update_engine: [INFO:action_processor.cc(116)] ActionProcessor: finished last action PostinstallRunnerAction with code ErrorCode::kSuccess
2021-06-20 13:42:07.401 718-718/? I/update_engine: [INFO:update_attempter_android.cc(522)] Processing Done.
2021-06-20 13:42:07.409 718-718/? I/update_engine: [INFO:update_attempter_android.cc(535)] Update successfully applied, waiting to reboot.
2021-06-20 13:42:07.419 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(263)] Destroying [product_b, system_b, vendor_b] from device mapper
2021-06-20 13:42:07.445 718-718/? I/update_engine: [libfs_mgr]Unmapped logical partition product_b
2021-06-20 13:42:07.489 718-718/? I/update_engine: Successfully unmapped snapshot product_b
2021-06-20 13:42:07.498 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(249)] Successfully unmapped product_b from device mapper.
2021-06-20 13:42:07.517 718-718/? I/update_engine: [libfs_mgr]Unmapped logical partition system_b
2021-06-20 13:42:07.573 718-718/? I/update_engine: Successfully unmapped snapshot system_b
2021-06-20 13:42:07.582 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(249)] Successfully unmapped system_b from device mapper.
2021-06-20 13:42:07.621 718-718/? I/update_engine: [libfs_mgr]Unmapped logical partition vendor_b
2021-06-20 13:42:07.665 718-718/? I/update_engine: Successfully unmapped snapshot vendor_b
2021-06-20 13:42:07.673 718-718/? I/update_engine: [INFO:dynamic_partition_control_android.cc(249)] Successfully unmapped vendor_b from device mapper.
2021-06-20 13:42:07.684 718-718/? I/update_engine: [INFO:metrics_reporter_android.cc(131)] Current update attempt downloads 627 bytes data
2021-06-20 13:42:07.698 718-718/? I/update_engine: [INFO:metrics_utils.cc(380)] Updated Marker = 1/1/1970 0:05:38 GMT
Here is to modify selinux to permission verification, which can be used for reference Android11.0 ® MTK6771 user version closes SELinux
For the genuine shipping version, we need to solve the corresponding selinux permission problem. The following is update_ Missing permissions for engine execution
update_engine: type=1400 audit(0.0:134): avc: denied { dac_read_search } for capability=2 scontext=u:r:update_engine:s0 tcontext=u:r:update_engine:s0 tclass=capability permissive=0
update_engine: type=1400 audit(0.0:135): avc: denied { dac_override } for capability=1 scontext=u:r:update_engine:s0 tcontext=u:r:update_engine:s0 tclass=capability permissive=0
update_engine: type=1400 audit(0.0:180): avc: denied { search } for name="/" dev="fuse" ino=720897 scontext=u:r:update_engine:s0 tcontext=u:object_r:fuse:s0 tclass=dir permissive=0
update_engine: type=1400 audit(0.0:109): avc: denied { search } for name="0" dev="tmpfs" ino=13411 scontext=u:r:update_engine:s0 tcontext=u:object_r:mnt_user_file:s0 tclass=dir permissive=0
update_engine: type=1400 audit(0.0:108): avc: denied { read } for name="primary" dev="tmpfs" ino=36806 scontext=u:r:update_engine:s0 tcontext=u:object_r:mnt_user_file:s0 tclass=lnk_file permissive=0
update_engine: type=1400 audit(0.0:108): avc: denied { read } for name="update.zip" dev="fuse" ino=557088 scontext=u:r:update_engine:s0 tcontext=u:object_r:fuse:s0 tclass=file permissive=0
update_engine: type=1400 audit(0.0:104): avc: denied { open } for path="/storage/emulated/0/update.zip" dev="fuse" ino=2760730 scontext=u:r:update_engine:s0 tcontext=u:object_r:fuse:s0 tclass=file permissive=0
Add the following allow permissions
device\mediatek\sepolicy\basic\non_plat\update_engine.te
allow update_engine update_engine:capability { dac_read_search dac_override };
allow update_engine fuse:dir { search };
allow update_engine fuse:file { read open };
allow update_engine mnt_user_file:dir { search };
allow update_engine mnt_user_file:lnk_file { read };
Compile time capability violates neverallow rule, error resolution reference selinux problems encountered in adding property to android 11
system\sepolicy\prebuilts\api\30.0\private\domain.te
system\sepolicy\private\domain.te
@@ -311,8 +311,10 @@ define(`dac_override_allowed', `{
vold
vold_prepare_subdirs
zygote
+ update_engine
}')
-neverallow ~dac_override_allowed self:global_capability_class_set dac_override;
+neverallow ~{dac_override_allowed update_engine} self:global_capability_class_set dac_override;
# Since the kernel checks dac_read_search before dac_override, domains that
# have dac_override should also have dac_read_search to eliminate spurious
# denials. Some domains have dac_read_search without having dac_override, so
@@ -323,6 +325,7 @@ neverallow ~{
iorap_prefetcherd
traced_perf
traced_probes
+ update_engine
userdebug_or_eng(`heapprofd')
} self:global_capability_class_set dac_read_search;
Next, the android layer calls the UpdateEngine api for upgrade verification
UpdateEngine is a system hide class. You can't directly reference it in AS. In this way, you can only use Android MK configuration compiled.
But this debugging is too inefficient, and the UI design is too limited. Our idea must be to directly compile and package apk in AS and throw it into the system for packaging.
The simplest way to use reflection here is really successful. The following is the core upgrade code.
Corresponding source code path of frameworks
frameworks/base/core/java/android/os/UpdateEngine.java
frameworks/base/core/java/android/os/UpdateEngineCallback.java
The upgrade code call process is simple
1. Create the object of UpdateEngineCallback mupdaeenecallback
2. Create the UpdateEngine object mupdaeengine, and start the service after creation
3. Use mupdateengine Bind (mupdateenginecallback) is the callback object accepted by the bind method, and the class we created inherits the callback, which can be passed into the object of the current class
4. Call the applyPayload(String url,long offset,long size,String[] headerKeyValuePairs) method to perform the upgrade
5. In the rewritten onstatus update (int status, float percent) method, the progress logic is executed according to the obtained status
In the rewritten onPayloadApplicationComplete(int errorCode); Method to execute the logic after the upgrade is completed
Because the reflection specifies the UpdateEngineCallback callback, in order to make the package consistent, create a new package android/os in AS and copy UpdateEngineCallback java
AS/app/src/main/java/android/os/ROTAUpdateManager.java
package android.os;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.Handler;
import android.os.PowerManager;
import android.util.Log;
import android.view.WindowManager;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
public class ROTAUpdateManager {
private String TAG = "ROTAUpdateManager";
//UpdateEngine mUpdateEngine;
private final UpdateParser.ParsedUpdate parsedUpdate;
private static final String updateFilePath = "/sdcard/update.zip";
private static final String REBOOT_REASON = "reboot-ab-update";
private Context mContext;
private Handler mHandler;
private PowerManager mPowerManager;
public ROTAUpdateManager(Context context, Handler handler) throws IOException {
//mUpdateEngine = new UpdateEngine();
this.mContext = context;
this.mHandler = handler;
mPowerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
parsedUpdate = UpdateParser.parse(new File(updateFilePath));
}
public void startUpdateSystem() throws Exception {
//try {
Class<?> aClass = Class.forName("android.os.UpdateEngine");
Class<?> callClass = Class.forName("android.osnouse.UpdateEngineCallback");
Constructor<?> constructor = aClass.getDeclaredConstructor();
constructor.setAccessible(true);
Object mUpdateEngine = constructor.newInstance();//UpdateEngine mUpdateEngine = new UpdateEngine();
//mUpdateEngine.bind(mUpdateEngineCallback);
Method bindMethod = aClass.getDeclaredMethod("bind", callClass, Handler.class);
bindMethod.setAccessible(true);// Bind callback
bindMethod.invoke(mUpdateEngine, new UpdateEngineCallback() {
@Override
public void onStatusUpdate(int status, float percent) {
Log.d(TAG, "onStatusUpdate status = " + status + "; percent = " + percent);
handleStatusUpdate(status, percent);
}
@Override
public void onPayloadApplicationComplete(int errorCode) {
Log.e(TAG, "onPayloadApplicationComplete errorCode = " + errorCode);
handlePayloadApplicationComplete(errorCode);
}
}, mHandler);
//mUpdateEngine.applyPayload(String url, long offset, long size, String[] headerKeyValuePairs)
Method payloadMethod = aClass.getDeclaredMethod("applyPayload", String.class,
long.class, long.class, String[].class);// Upgrade
payloadMethod.setAccessible(true);
payloadMethod.invoke(mUpdateEngine, parsedUpdate.mUrl,
parsedUpdate.mOffset, parsedUpdate.mSize, parsedUpdate.mProps);
// }catch (Exception e) {
// e.printStackTrace();
// }
}
private void showToast(String msg){
Toast.makeText(mContext, msg, Toast.LENGTH_SHORT).show();
}
private void handleStatusUpdate(int status, float percent){
switch (status){
case UpdateStatusConstants.UPDATE_AVAILABLE:
break;
case UpdateStatusConstants.VERIFYING:
showToast("update engine is verifying an update");
break;
case UpdateStatusConstants.DOWNLOADING:
int progress = Float.valueOf(percent * 100).intValue();
break;
case UpdateStatusConstants.FINALIZING:
int value = Float.valueOf(percent * 100).intValue();
break;
case UpdateStatusConstants.UPDATED_NEED_REBOOT:
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
mPowerManager.reboot(REBOOT_REASON);
}
},2000);
break;
}
}
private void handlePayloadApplicationComplete(int errorCode){
switch (errorCode){
case ErrorCodeConstants.SUCCESS:
break;
case ErrorCodeConstants.FILESYSTEM_COPIER_ERROR:
showToast("filesystem copier error");
break;
case ErrorCodeConstants.POST_INSTALL_RUNNER_ERROR:
showToast("an error in running post-install hooks.");
break;
case ErrorCodeConstants.PAYLOAD_MISMATCHED_TYPE_ERROR:
showToast("a mismatching payload");
break;
case ErrorCodeConstants.INSTALL_DEVICE_OPEN_ERROR:
showToast("an error in opening devices");
break;
case ErrorCodeConstants.KERNEL_DEVICE_OPEN_ERROR:
showToast("an error in opening kernel device");
break;
case ErrorCodeConstants.DOWNLOAD_TRANSFER_ERROR:
showToast("an error in fetching the payload");
break;
case ErrorCodeConstants.PAYLOAD_HASH_MISMATCH_ERROR:
showToast(" a mismatch in payload hash");
break;
case ErrorCodeConstants.PAYLOAD_SIZE_MISMATCH_ERROR:
showToast("a mismatch in payload size");
break;
case ErrorCodeConstants.DOWNLOAD_PAYLOAD_VERIFICATION_ERROR:
showToast("failing to verify payload signatures");
break;
case ErrorCodeConstants.NOT_ENOUGH_SPACE:
showToast("there is not enough space on the device to apply the update");
break;
}
}
public static final class UpdateStatusConstants {
/**
* Update status code: update engine is in idle state.
*/
public static final int IDLE = 0;
/**
* Update status code: update engine is checking for update.
*/
public static final int CHECKING_FOR_UPDATE = 1;
/**
* Update status code: an update is available.
*/
public static final int UPDATE_AVAILABLE = 2;
/**
* Update status code: update engine is downloading an update.
*/
public static final int DOWNLOADING = 3;
/**
* Update status code: update engine is verifying an update.
*/
public static final int VERIFYING = 4;
/**
* Update status code: update engine is finalizing an update.
*/
public static final int FINALIZING = 5;
/**
* Update status code: an update has been applied and is pending for
* reboot.
*/
public static final int UPDATED_NEED_REBOOT = 6;
/**
* Update status code: update engine is reporting an error event.
*/
public static final int REPORTING_ERROR_EVENT = 7;
/**
* Update status code: update engine is attempting to rollback an
* update.
*/
public static final int ATTEMPTING_ROLLBACK = 8;
/**
* Update status code: update engine is in disabled state.
*/
public static final int DISABLED = 9;
}
public static final class ErrorCodeConstants {
/**
* Error code: a request finished successfully.
*/
public static final int SUCCESS = 0;
/**
* Error code: a request failed due to a generic error.
*/
public static final int ERROR = 1;
/**
* Error code: an update failed to apply due to filesystem copier
* error.
*/
public static final int FILESYSTEM_COPIER_ERROR = 4;
/**
* Error code: an update failed to apply due to an error in running
* post-install hooks.
*/
public static final int POST_INSTALL_RUNNER_ERROR = 5;
/**
* Error code: an update failed to apply due to a mismatching payload.
*/
public static final int PAYLOAD_MISMATCHED_TYPE_ERROR = 6;
/**
* Error code: an update failed to apply due to an error in opening devices.
*/
public static final int INSTALL_DEVICE_OPEN_ERROR = 7;
/**
* Error code: an update failed to apply due to an error in opening kernel device.
*/
public static final int KERNEL_DEVICE_OPEN_ERROR = 8;
/**
* Error code: an update failed to apply due to an error in fetching the payload.
*/
public static final int DOWNLOAD_TRANSFER_ERROR = 9;
/**
* Error code: an update failed to apply due to a mismatch in payload hash.
*/
public static final int PAYLOAD_HASH_MISMATCH_ERROR = 10;
/**
* Error code: an update failed to apply due to a mismatch in payload size.
*/
public static final int PAYLOAD_SIZE_MISMATCH_ERROR = 11;
/**
* Error code: an update failed to apply due to failing to verify payload signatures.
*/
public static final int DOWNLOAD_PAYLOAD_VERIFICATION_ERROR = 12;
/**
* Error code: an update failed to apply due to a downgrade in payload timestamp.
*/
public static final int PAYLOAD_TIMESTAMP_ERROR = 51;
/**
* Error code: an update has been applied successfully but the new slot
* hasn't been set to active.
*/
public static final int UPDATED_BUT_NOT_ACTIVE = 52;
/**
* Error code: there is not enough space on the device to apply the update. User should
* be prompted to free up space and re-try the update.
*/
public static final int NOT_ENOUGH_SPACE = 60;
/**
* Error code: the device is corrupted and no further updates may be applied.
*/
public static final int DEVICE_CORRUPTED = 61;
}
AS/app/src/main/java/android/os/UpdateEngineCallback.java
package android.os;
public abstract class UpdateEngineCallback {
public abstract void onStatusUpdate(int status, float percent);
public abstract void onPayloadApplicationComplete(int errorCode);
}
AS/app/src/main/java/android/os/UpdateParser.java
package android.os;
import android.util.Log;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.Locale;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/** Parse an A/B update zip file. */
public class UpdateParser {
private static final String TAG = "ROTAUpdateManager";
private static final String PAYLOAD_BIN_FILE = "payload.bin";
private static final String PAYLOAD_PROPERTIES = "payload_properties.txt";
private static final String FILE_URL_PREFIX = "file://";
private static final int ZIP_FILE_HEADER = 30;
private UpdateParser() {
}
/**
* Parse a zip file containing a system update and return a non null ParsedUpdate.
*/
static ParsedUpdate parse(File file) throws IOException {
long payloadOffset = 0;
long payloadSize = 0;
boolean payloadFound = false;
String[] props = null;
try (ZipFile zipFile = new ZipFile(file)) {
Enumeration<? extends ZipEntry> entries = zipFile.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
long fileSize = entry.getCompressedSize();
if (!payloadFound) {
payloadOffset += ZIP_FILE_HEADER + entry.getName().length();
if (entry.getExtra() != null) {
payloadOffset += entry.getExtra().length;
}
}
if (entry.isDirectory()) {
continue;
} else if (entry.getName().equals(PAYLOAD_BIN_FILE)) {
payloadSize = fileSize;
payloadFound = true;
} else if (entry.getName().equals(PAYLOAD_PROPERTIES)) {
try (BufferedReader buffer = new BufferedReader(
new InputStreamReader(zipFile.getInputStream(entry)))) {
props = buffer.lines().toArray(String[]::new);
}
}
if (!payloadFound) {
payloadOffset += fileSize;
}
//if (Log.isLoggable(TAG, Log.DEBUG)) {
Log.d(TAG, String.format("Entry %s", entry.getName()));
//}
}
}
return new ParsedUpdate(file, payloadOffset, payloadSize, props);
}
/** Information parsed from an update file. */
static class ParsedUpdate {
final String mUrl;
final long mOffset;
final long mSize;
final String[] mProps;
ParsedUpdate(File file, long offset, long size, String[] props) {
mUrl = FILE_URL_PREFIX + file.getAbsolutePath();
mOffset = offset;
mSize = size;
mProps = props;
}
/** Verify the update information is correct. */
boolean isValid() {
return mOffset >= 0 && mSize > 0 && mProps != null;
}
@Override
public String toString() {
return String.format(Locale.getDefault(),
"ParsedUpdate: URL=%s, offset=%d, size=%s, props=%s",
mUrl, mOffset, mSize, Arrays.toString(mProps));
}
}
}
Execute a sentence of code
new ROTAUpdateManager(this, mHandler).startUpdateSystem();