updated to efi boot

modules/hardware-configuration/vm/proxmox.nix

@@ -10,9 +10,9 @@
 
   boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
   boot.initrd.kernelModules = [ ];
-  boot.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
-  boot.loader.grub.device = "/dev/sda2"; # or "nodev" for efi only
+  # boot.loader.grub.device = "/dev/sda2"; # or "nodev" for efi only
 
   # fileSystems."/" =
   #   { device = "/dev/disk/by-label/nixos";