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rauc / meta-rauc-community

Yocto/OpenEmbedded meta layer with examples for integration of RAUC, the embedded Linux A/B update framework
MIT License
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uboot fails to load kernel on raspi 4B #21

Closed EasyIP2023 closed 3 years ago

EasyIP2023 commented 3 years ago

I cant seem to get the PI to boot with A/B dual partition + rauc. I've followed this tutorial here https://www.konsulko.com/getting-started-with-rauc-on-raspberry-pi-2/, but no matter what I do I always see the bellow error. Even setting kernel=uImage in config.txt and setting KERNEL_IMAGETYPE = "uImage" yields the same results.

rauc-error

leon-anavi commented 3 years ago

Hi @EasyIP2023,

Which Yocto/OE release and respectively branch of meta-rauc-community are you using?

Keep in mind that the project has evolved since I wrote the article and numerous community contributions have been merged in master and honestly due to lack of enough time for testing they may resulted in certain issues.

Thanks, Leon

EasyIP2023 commented 3 years ago

@leon-anavi no worries. Thanks for writing that! I was on Yocto/OE (Dunfell 3.1.8) when I was first testing later switched to (Dunfell 3.1.10). Also on the latest commit of meta-rauc-community branch dunfell. Will first try to switch to branch master. If that doesn't work revert to a later meta-rauc-community (branch master) commit maybe one from before Sept 2020.

leon-anavi commented 3 years ago

Hi @EasyIP2023,

Sounds as a good plan. If you are using Yocto/OE release Dunfell 3.1.8 I would recommend using the dunfell branch. There were some recent syntax changes in master which are not compatible with dunfell, for example GitHub pull requests https://github.com/rauc/meta-rauc-community/pull/20 and https://github.com/rauc/meta-rauc-community/pull/19.

Please provide feedback of your finding as it will be useful for the community and fixing these issues.

Thanks, Leon

EasyIP2023 commented 3 years ago

@leon-anavi Closing issue as after some investigation the problem isn't with the meta-rauc-community/meta-rauc-raspberrypi layer, but with u-boot support for the raspberrypi 4B. Seems like it doesn't want to work with the latest raspberrypi bootloader/firmwar.

U-Boot 2021.10-rc3-dirty (Sep 05 2021 - 15:23:39 -0500)

DRAM:  3.9 GiB
RPI 4 Model B (0xc03112)
mbox: Timeout waiting for response
bcm2835: Could not set module 3 power state
initcall sequence 000000003b3d28f8 failed at call 0000000000084344 (err=-5)

Here's a link to something similar years ago. Implemented by agherzan.

I decided to try the compile u-boot from source and try it on the latest raspberry pi stock image. Ran into similar results. Which leads me to believe. u-boot isn't configured to work with the latest raspberrypi bootloader/firmware. At least from what I am seeing.

leon-anavi commented 3 years ago

Thank you for the feedback and the provided details.

Best regards, Leon