Hi,

On Sun, 12 Dec 2021 21:58:14 +0100
gyps@member.fsf.org wrote:

> If I change my operating-system config to inlcude udev-rules from
> package "projecteur" everything works fine - at least if I do it as a
> regular user. As soon as I sudo the guix system reconfigure command the
> package is known but it's code is not. Error message is:
> 
> > $ sudo guix system reconfigure ~/etc/config.scm
> > ice-9/boot-9.scm:3329:6: In procedure resolve-interface:
> > no code for module (projecteur)  
> 
> Could it be the case that sudo'ed the variable GUIX_PACKAGE_PATH is not
> known or not interpreted correctly? Does the package need to reside
> somewhere else than in GUIX_PACKAGE_PATH?

Yeah, sudo is very paranoid. You need to pass -E GUIX_PACKAGE_PATH to it:

   sudo -E GUIX_PACKAGE_PATH guix system reconfigure ~/etc/config.scm