When I try to create a container in a nested LXD (so running LXD in LXD) I get this error:

tar: Exiting with failure status due to previous errors. tar: rootfs/lib64/udev/devices/urandom: Cannot mknod: Operation not permitted

I can create other containers like alpine linux ...

The question is can udev take care of mknod at runtime, or do these file need to be created at container creation?