1{
2 config,
3 lib,
4 pkgs,
5 ...
6}:
7let
8 cfg = config.image;
9in
10{
11 imports = [
12 ./disk-size-option.nix
13 ../image/file-options.nix
14 ];
15
16 options.image = {
17 format = lib.mkOption {
18 description = "Format of the disk image to generate: raw or qcow2";
19 type = lib.types.enum [
20 "raw"
21 "qcow2"
22 ];
23 default = "qcow2";
24 };
25 efiSupport = lib.mkOption {
26 description = "Whether the disk image should support EFI boot or legacy boot";
27 type = lib.types.bool;
28 default = true;
29 };
30 };
31
32 config = {
33 boot.loader.grub = lib.mkIf (!cfg.efiSupport) {
34 enable = lib.mkOptionDefault true;
35 devices = lib.mkDefault [ "/dev/vda" ];
36 };
37 boot.loader.systemd-boot.enable = lib.mkDefault cfg.efiSupport;
38 boot.growPartition = lib.mkDefault true;
39
40 fileSystems = {
41 "/" = {
42 device = "/dev/disk/by-label/nixos";
43 autoResize = true;
44 fsType = "ext4";
45 };
46 "/boot" = lib.mkIf (cfg.efiSupport) {
47 device = "/dev/disk/by-label/ESP";
48 fsType = "vfat";
49 };
50 };
51
52 system.nixos.tags = [ cfg.format ] ++ lib.optionals cfg.efiSupport [ "efi" ];
53 image.extension = cfg.format;
54 system.build.image = import ../../lib/make-disk-image.nix {
55 inherit lib config pkgs;
56 inherit (config.virtualisation) diskSize;
57 inherit (cfg) baseName format;
58 partitionTableType = if cfg.efiSupport then "efi" else "legacy";
59 };
60 };
61}