error when execute linuxcnc on raspberry

I have installed linuxcnc on my raspberry flowing these steps described in this link .
so when start the linuxcnc I got the error shown in the attached picture.

thanks

Hi

Hopefully you have downloaded the correct deb for the xenomai kernel.

The error is simply because you are trying to run it as root, it says so twice in the first screen capture. (FATAL - will not run as root)

Michael wrote a test in to prevent it running as root in the early days of ubc.
I could tell you how to circumvent it, but then I would have to kill you

regards