Usage of xenomai-images

[Per Oberg <pero@wolfram.com>]

Hi list 

I thought I'd take the xenomai-images from [1] out for a spin and I think I got it working. However, A few pointers about what is what would have been helpful. 

E.g. 

Under "Building Target Images" there could have been a note saying that you need the kas.yml files and board-qemu-amd64.yml available. I feel those instructions are a bit incomplete. 
At docker-hub there are no comments/descriptions for the kas-isar and kas images so it's a bit difficult to know what to use. 

Now it seems to be working when using the provided "kas-docker" script, but then I tried using a bind-mount and bash to get inside the docker and run it from there. 'docker run -it --mount type=bind,source="$HOME"/kas-builder,target=/builder kasproject/kas bash'. 

For the "kas" docker image I get errors related to missing isar, and for the kas-isar docker image i get "mount: /proc/sys/fs/binfmt_misc: permission denied." so i tried adding the --privileged flag which seems to be working. Perhaps there could be a better "Start Here" guide giving some hints about this. 

Also, are there any binary links to -wic files that I can download and run using my own qemu so that I don't have to build them myself?

[1] https://gitlab.denx.de/Xenomai/xenomai-images

Per Öberg