[U-Boot] U-Boot and The Boot Loader Specification
Alexander Dahl
ada at thorsis.com
Wed Oct 17 12:04:00 UTC 2018
Hei hei,
while setting up U-Boot for a new board, I read doc/README.distro and tried to
follow it for making things smooth with standard distributions. The document
mentions the so called "Boot Loader Specification" [1] as follows:
> This is roughly
> as specified at:
>
> http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/
>
> ... with the exceptions that the BootLoaderSpec document:
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).
Are there any plans to support that specification or is anybody working on
that? If not, would a patch be okay to reword that part of the documentation?
Greets
Alex
[1] recent version here: https://systemd.io/BOOT_LOADER_SPECIFICATION
More information about the U-Boot
mailing list