Hello resurfacing this,

Finally setup a layer that builds multiple distro's
simultaneously. It doesn't set KERNEL_PACKAGE_NAME.
Builds just fine by changing TMPDIR in each multiconfig.
Will run into issues like bellow if you don't.

ERROR: mc:liveusb-install:liveusb-install-linux-6.12.101-r0 do_packagedata:
Recipe liveusb-install-linux is trying to install files into a shared area
when those files already exist. The files and the manifests listing them are:
/../../runtime-rprovides/kernel-6.12.101-amd-tiny/kernel-base

I think if we want the kernel-XXX prefix to be the default namespace we may
need to remove KERNEL_PACKAGE_NAME entirely and force user to build
in different TMPDIR's. Which I'm fine with that. I also think the original
ideal was to 1 allow a single TMPDIR to be used and 2 have better
separation between the kernels when using a package manager.
If you build 2 separate kernels, but they both have the same package
name which one would the package manager install.

To fix this I have to set KERNEL_PACKAGE_NAME.

Can find layer here.

https://github.com/under-view/meta-udoo-bolt

For quick setup recommend using Docker container. Link in README.

Have a branch for this patch series that I'm keeping up to date.
As well as supporting branches.

May be found here.

https://github.com/under-view/openembedded-core/tree/bugfix/kernel-package-name-2
https://github.com/under-view/meta-openembedded/tree/feature/kernel-package-name
https://github.com/under-view/meta-udoo-bolt/tree/feature/set-kernel-pn

Lastly, the above setup doesn't fix bug 11905. So, working on that now.