On Thu, Apr 16, 2020 at 05:04:36PM +0200, Mathieu Othacehe wrote: > Here's a small serie to add support for efivarfs and fix the issue reported > here: https://lists.gnu.org/archive/html/bug-guix/2020-04/msg00274.html. When I reconfigure the first time with your patch, I get a harmless error: building /gnu/store/klnbdxbw2jqglrdqyslv87c9y72g80f7-upgrade-shepherd-services.scm.drv guix system: error: exception caught while executing 'start' on service 'file-system-/sys/firmware/efi/efivars': Throw to key `match-error' with args `("match" "no matching pattern" ("efivarfs" "/sys/firmware/efi/efivars" "efivarfs" () #f #t #f)) I don’t know why it happens. Regards, Florian