Comment 0 for bug 1925267

Revision history for this message
Dimitri John Ledkov (xnox) wrote :

u-boot unmatched dtb does not match kernel dtb

We have reverted u-boot-menu upload and stopped using kernel provided dtbs, because that was preventing booting hirsute images under qemu. As dtb generated by qemu should be used, and there is no kernel provided dtb for qemu platform.

This resulted in unamtched board using dtb provided by u-boot, instead of loading and using dtb provided by the kernel builds.

There are differences between u-boot & kernel dtbs that potentially break compat.

There are two ways of fixing this:

1) bring uboot dtb in-line with the kernel dtb

2) fix qemu uboot to not load dtbs from disk, even when extlinux.conf asks to; and resume loading the matching kernel dtb from disk

Option 1) sounds easier for release.

The diff between u-boot's unmatched dtb & kernel provided dtb is at https://paste.ubuntu.com/p/YGKCvVM6yz/