Hello, I’m new to Nix and NixOS.
I have been using NixOS for a relatively long time, but I had to leave my laptop for about three days, and now I get the error “no bootable device”. I tried using my USB flash drive with NixOS. Still, thanks to the rEFInd utility, I was able to boot into my system, but I still don’t understand what the problem is. I can attach configuration files if necessary.
P.S.
I’m not completely sure if the problem is in NixOS or in my hardware