Emmanuel,

Emmanuel Medernach 写道：
> Surely because I am using a foreign distro

You're right (of course).  After installing Guix on a foreign 
distribution:

  $ findmnt /gnu/store
  $

A simple

  $ sudo mount -o bind,ro /gnu/store /gnu/store

fixes it for me, so it's not due to SELinux/AppArmour/… 
restrictions, and presumably the daemon just didn't bother.

I freely admit to not knowing the daemon as well as the rest of 
Guix.  Chalk one up to ‘foreign distroes and C++ are strange & 
scary to nckx’ — especially after this discovery.  But has this 
always been the case?

Kind regards,

T G-R