Jan Stary wrote:
> > > > Replacing the DTBs with those from the dtb package is not supposed to
> > > > work.
>
> Is this specific to the Raspberry, or is that true in general?
I think this was specifically in response to the test on an RPi.
> The content of the dtb package is a bunch of DTBs unde /usr/local/share
> - I am still not sure whether there is anything else to be done
> with them besides copying them over to the msdos partition
> (as created at install time).
At least when using U-Boot there is nothing else to be done with them.
The correct .dtb file is read by U-Boot, as Mark explained sometimes
modified or extended by U-Boot, then handed to the kernel in RAM on boot.
I don't think the kernel ever reads .dtb files from disk, only what it
gets from the bootloader in RAM.
It's not impossible for other software to also use the .dtb files but
the intended flow at least with U-Boot is to place the right one on
the msdos partition, tell U-Boot which one is right, let U-Boot read,
modify and pass it to the kernel.
//Peter
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