On Wed, 2021-06-30 at 09:33 +0000, Cardaillac, Yann wrote:

I’m switching from buildroot to yocto and trying to figure out how to do the equivalent of a
POST_BUILD_SCRIPT.
 
Indeed I want to format the images built in a specific format for latter use and CI needs.

In OE, the equivalent for that is probably the image types code.
See http://git.yoctoproject.org/cgit.cgi/poky/tree/meta/classes/image_types.bbclass

You can define your own custom image types to extend the system. Some of our defaults
are quite simple (tar), some are quite complex (wic has its own bbclass).

I’ve also tried to use IMAGE_POSTPROCESS_COMMAND without much success since it 
wasn’t running at the proper moment.

When is "the right moment"? :)

Cheers,

Richard