Hi again, Thanks for the tips, Chris, and sorry for the long silence. > https://lists.gnu.org/archive/html/guix-devel/2016-07/msg01457.html > https://lists.gnu.org/archive/html/guix-devel/2018-02/msg00446.html > https://lists.gnu.org/archive/html/guix-devel/2017-12/msg00221.html Hmmm... As far as I get it, none of those links tackle the issue of building an _external_ kernel module. The modules mentioned in the links are all part of the linux-libre kernel. Currently it seems that we have no way to build an external module. It's quite problematic. I've sent a patch: 34758@debbugs.gnu.org. It needs the following: - Fix vhba-module 'build phase. - Optional: make a udev-related service to simplify the setup. The service won't work if the module is not included in the kernel. I'll continue the discussion there. -- Pierre Neidhardt https://ambrevar.xyz/