1.1.2Andorid Automotive 镜像刷写流程

1.解锁设备以刷写 build

 

2.进入fastboot模式进行unlock解锁

adb reboot bootloader

fastboot flashing unlock

bill@BILL:~/03_tools/01_Android/SDK/build-tools/30.0.3$ fastboot flashing unlockOKAY [ 0.099s]

Finished. Total time: 0.099s

上锁命令：

bill@BILL:~/03_tools/01_Android/SDK/build-tools/30.0.3$ fastboot flashing lock

OKAY [ 0.099s]

Finished. Total time: 0.099s

 

3.配置 ANDROID_PRODUCT_OUT环境变量，该环境变量指向我们编译镜像所在实际项目的目录，形如：

 

4.刷写镜像

bill@BILL:~/03_tools/01_Android/SDK/build-tools/30.0.3$ fastboot -w flashall

--------------------------------------------

Bootloader Version...: c2f2-0.2-5940465

Baseband Version.....: g8150-00041-191016-B-5945070

Serial Number........: 98281FFBA007AH

--------------------------------------------

Checking 'product' OKAY [ 0.070s]

Setting current slot to 'a' OKAY [ 0.151s]

Sending 'boot_a' (65536 KB) OKAY [ 2.220s]

Writing 'boot_a' OKAY [ 0.525s]

Sending 'dtbo_a' (8192 KB) OKAY [ 0.400s]

Writing 'dtbo_a' OKAY [ 0.193s]

Sending 'vbmeta_a' (4 KB) OKAY [ 0.140s]

Writing 'vbmeta_a' OKAY [ 0.073s]

Sending 'vbmeta_system_a' (4 KB) OKAY [ 0.140s]

Writing 'vbmeta_system_a' OKAY [ 0.073s]

Rebooting into fastboot OKAY [ 0.070s]

< waiting for any device >

Sending 'super' (4 KB) OKAY [ 0.007s]

Updating super partition OKAY [ 0.010s]

Resizing 'product_a' OKAY [ 0.002s]

Resizing 'system_a' OKAY [ 0.002s]

Resizing 'system_b' OKAY [ 0.003s]

Resizing 'vendor_a' OKAY [ 0.002s]

Resizing 'vendor_b' OKAY [ 0.004s]

Resizing 'product_a' OKAY [ 0.002s]

Sending 'product_a' (267912 KB) OKAY [ 7.443s]

Writing 'product_a' OKAY [ 1.882s]

Resizing 'system_a' OKAY [ 0.044s]

Sending sparse 'system_a' 1/2 (524284 KB) OKAY [ 14.777s]

Writing 'system_a' OKAY [ 3.288s]

Sending sparse 'system_a' 2/2 (410848 KB) OKAY [ 11.982s]

Writing 'system_a' OKAY [ 2.693s]

Resizing 'system_b' OKAY [ 0.036s]

Sending 'system_b' (16680 KB) OKAY [ 0.534s]

Writing 'system_b' OKAY [ 0.378s]

Resizing 'vendor_a' OKAY [ 0.004s]

Sending sparse 'vendor_a' 1/2 (524284 KB) OKAY [ 14.629s]

Writing 'vendor_a' OKAY [ 3.310s]

Sending sparse 'vendor_a' 2/2 (207892 KB) OKAY [ 5.963s]

Writing 'vendor_a' OKAY [ 1.592s]

Erasing 'userdata' OKAY [ 1.054s]

Erase successful, but not automatically formatting.

File system type raw not supported.

Erasing 'metadata' OKAY [ 0.073s]

Erase successful, but not automatically formatting.

File system type raw not supported.

Rebooting OKAY [ 0.000s]

Finished. Total time: 91.001s

 

5.启用  adb remount：

bill@BILL:~/03_tools/01_Android/SDK/build-tools/30.0.3$ adb root && sleep 1 && adb disable-verity && sleep 1 && adb reboot && adb wait-for-device root && sleep 1 && adb remount

restarting adbd as root

using overlayfs

Successfully disabled verity

Now reboot your device for settings to take effect

restarting adbd as root

remount succeeded

 此过程中，设备平台将会重启。且开机后，界面显示不正常，无法完整显示整个界面，那么此时则需要我们进入下一步。

 

6.将所需的汽车专用文件推送到设备：

bill@BILL:~/03_tools/01_Android/SDK/build-tools/30.0.3$ adb sync vendor

/vendor/: 7 files pushed, 0 skipped. 14.9 MB/s (322830 bytes in 0.021s)

前面应该用screencap命令截屏的，不过看到效果就可以了，最后再补上一张截屏。