Hello, Apologies for not chiming in earlier! Mark H Weaver skribis: > At least for some transition period, it would be good to find a way to > cope with (store (device #f)) in some older system generations. > > What do you think? I think the patch below, which is Marius’ patch + adjusts ‘read-boot-parameters’ to cope with #f store-device, should solve the issue. Could you check if it works for you? Thanks, and sorry for the delay! Ludo’.