heya guixers ! i have a problem: while trying to 'guix system reconfigure /etc/config.scm' (see attached file)  in order to switch from Linux-libre to Linux Kernel.

Guix says : "guix system: error: failed to load
    '/etc/config.scm':  ice-9/boot-9.scm:3330:6: In procedure resolve-interface: no code formodule (nongnu packages linux)" .

NOTE : i have both guix and nonguix channels enabled

What am i missing ? Thanks, thanks, thanks !

Fenix