No valid operating system could be found Pixel 3a XL

[Dr. Dhanyu Eshaka]

Hi,

I am using build for   "Pixel 3a XL bonito aosp_bonito-userdebug" configuration.

I build the android version based on 

"QP1A.191105.003 android-10.0.0_r10 Android10 Pixel 3a XL, Pixel 3a, Pixel 3 XL, Pixel 3 2019-11-05"

After flash the device the system complains as  "No valid operating system could be found. The device will not boot."

Reasoning for this error explain as "Show a RED screen is shown if no valid version of Android can be found".

I have used the given version from AOSP. And build exactly as they advised. 

What am I missing here?

Thx

[jw wang]

Hi Dhanyu Eshaka

did you download the blob into the root of AOSP ?

https://source.android.com/setup/build/downloading

Obtain proprietary binaries

AOSP can't be used from pure source code only and requires additional hardware-related proprietary libraries to run, such as for hardware graphics acceleration. See the sections below for download links and Device binaries for additional resources.

Some devices package these proprietary binaries on their /vendor partition.

Download proprietary binaries

You can download official binaries for the supported devices running tagged AOSP release branches from Google's drivers. These binaries add access to additional hardware capabilities with non-open source code. To build the AOSP master branch, use the Binaries Preview instead. When building the master branch for a device, use the binaries for the most recent numbered release or with the most recent date.

[Dr. Dhanyu Eshaka]

Hi Wang,

I used vendor.img for pixel 3a XL. But not proprietary binaries.
Thank you for the information. I will go through this and give another try. I will keep you update on this.

Regards

- Dhanyu

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[Dr. Dhanyu Eshaka]

I still have no luck with Pixel 3a XL loading with AOSP build. 
I extracted proprietary binaries to my WORKING DIRECTORY and it has created vendor.img, bootloader.img and radio.img. 

copied all images in out/target/product/bonito folder and 
fastboot flashall -w ...... I ended up with the same error.

I tries with 

fastboot flash bootloader bootloade.img
fastboot reboot-bootloader
 
fastboot flash radio radio.img
fastboot reboot-bootloader
 
fastboot -w update Archive.zip  (after set everything into compressed folder)

Still no luck. I have nexus 5x where my my build works fine with fastboot flashall -w 

but Pixel 3a XL is frustrating .... interestingly not many ppl discussed this (may be they get it to work) 

- Dhanyu 

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