How to build supported (externally supported of course) kernel for 15SP7

Hi and welcome to the Forum :smile:

I see a not here about installing kernel-default-extra packages which does enable “allow_unsupported”

https://documentation.suse.com/sles/15-SP7/html/SLES-all/article-modules.html#art-modules-workstation

But all you need to do is add that to the kernel boot options via YaST Bootloader?