Dear Alexander,
In message 2092760.TlMJupW03t@ada you wrote:
I played with the extlinux.conf format snippets from the U-Boot docs. Upstream extlinux docs are not really helpful, especially not for options regarding dtb files. And I tried a config based on the Boot Loader Spec:
Scanning mmc 2:1... Found /boot/extlinux/extlinux.conf Retrieving file: /boot/extlinux/extlinux.conf 366 bytes read in 268 ms (1000 Bytes/s) Ignoring unknown command: title Ignoring unknown command: version Ignoring unknown command: options Ignoring unknown command: linux Ignoring unknown command: devicetree
Am I right, U-Boot does not support that spec at all? Files are in different positions, and the keywords are all different? If so, then the U-Boot documentation is misleading (and people will be frustrated to follow the hints given in there).
It would definitely help if you tell us which actual command (sequence) you used to get this output, and what the exact content of this extlinux.conf was.
Without such information, we cannot even guess what you did.
Best regards,
Wolfgang Denk