Building Pie GSI for Pixel 2/3

[Jim Stys]

As per the subject, I'm trying to build the pie GSI source to generate a system.img for pixel 2 and, later, a pixel 3.  I am able to successfully build the image but flashing it is causing the bootup to hang on the Pixel 2 and any help would be appreciated.

To build/flash the image I went through this process:

// Building image
repo init -u https://android.googlesource.com/platform/manifest -b pie-gsi
repo sync -cq
source build/envsetup.sh
lunch aosp_arm64_ab-userdebug
make -j8

// Installing image
cd out/target/product/generic_arm64_ab/
fastboot erase system
fastboot -u flash system system.img
fastboot flash vbmeta vbmeta.img
fastboot reboot


I first flashed the latest factory image for the pixel 2 (9.0.0 (PQ1A.181105.017.A1, Nov 2018)) which I found here (https://developers.google.com/android/images#walleye).  After flashing the GSI and booting, the phone just displays an older style "android" logo (white text on black background) and fails to boot into the OS.

[Jim Stys]

I got this working by flashing the previous factory image (9.0.0 (PPR2.181005.003, Oct 2018)) and installing the pie gsi built from source on top of that.  I'm guessing it is just a version mismatch as I noticed the build_fingerprint / build_thumbprint in the out directory

have the "PPRL.181005.003" build id referenced in them.