Yocto migration meta-barebox -> walnascar

[Konstantin Kletschke]

Hello Ahmad!

On Tue, Jan 06, 2026 at 12:33:21PM +0100, Ahmad Fatoum wrote:

> When enabled, the same barebox build generates two images:
> barebox-am33xx-beaglebone-mlo.mmc.img -> MLO
> barebox-am33xx-beaglebone.img -> barebox.bin
> 
> Both are placed in the VFAT.

I do not necessaryly need two images, if booting is now done with a
combined one, which is new, if I understood this correct.

In my images deploy dir the following images showed up after my
migration to walnascar away from the meta-barebox layer which is not
used anymore.

barebox-am33xx-afi-gf.img
barebox-am33xx-baltos.img
barebox-am33xx-beaglebone.img
barebox-am33xx-myirtech.img
barebox-am33xx-phytec-phycard.img
barebox-am33xx-phytec-phycore-emmc.img
barebox-am33xx-phytec-phycore-no-eeprom.img
barebox-am33xx-phytec-phycore-no-spi-no-eeprom.img
barebox-am33xx-phytec-phycore-no-spi.img
barebox-am33xx-phytec-phycore.img
barebox-am33xx-phytec-phyflex-no-eeprom.img
barebox-am33xx-phytec-phyflex-no-spi-no-eeprom.img
barebox-am33xx-phytec-phyflex-no-spi.img
barebox-am33xx-phytec-phyflex.img
barebox-am35xx-pfc-750-820x.img
barebox-beagleboard.img
barebox-dt-2nd.img

And that is, when I wondered myself, if - in our case - barebox-am33xx-beaglebone.img
is going to be named MLO and put into the vfat boot partition or if I
have something missing or done wrong, which is absolutely possible, of
course!

So, no *mlo* file.

> For your old setup, you will need two recipes. Just define your own
> barebox.bb and barebox-pbl.bb recipes and inherit barebox in each and
> use different configs. All the core logic is in a barebox.bbclass to
> allow you to easily create your own recipes.

So only using this approach with two barebox.bb and barebox-pbl.bb I
would get an additional *mlo* file, right?
As said, if I can omit this approach this is fine by me.

Regards
Konsti



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