pyrox.dev
1# This module adds a scripted iPXE entry to the GRUB boot menu.
2
3{ config, lib, pkgs, ... }:
4
5with lib;
6
7let
8 scripts = builtins.attrNames config.boot.loader.grub.ipxe;
9
10 grubEntry = name:
11 ''
12 menuentry "iPXE - ${name}" {
13 linux16 @bootRoot@/ipxe.lkrn
14 initrd16 @bootRoot@/${name}.ipxe
15 }
16
17 '';
18
19 scriptFile = name:
20 let
21 value = builtins.getAttr name config.boot.loader.grub.ipxe;
22 in
23 if builtins.typeOf value == "path" then value
24 else builtins.toFile "${name}.ipxe" value;
25in
26{
27 options =
28 { boot.loader.grub.ipxe = mkOption {
29 type = types.attrsOf (types.either types.path types.str);
30 description =
31 ''
32 Set of iPXE scripts available for
33 booting from the GRUB boot menu.
34 '';
35 default = { };
36 example = literalExample ''
37 { demo = '''
38 #!ipxe
39 dhcp
40 chain http://boot.ipxe.org/demo/boot.php
41 ''';
42 }
43 '';
44 };
45 };
46
47 config = mkIf (builtins.length scripts != 0) {
48
49 boot.loader.grub.extraEntries =
50 if config.boot.loader.grub.version == 2 then
51 toString (map grubEntry scripts)
52 else
53 throw "iPXE is not supported with GRUB 1.";
54
55 boot.loader.grub.extraFiles =
56 { "ipxe.lkrn" = "${pkgs.ipxe}/ipxe.lkrn"; }
57 //
58 builtins.listToAttrs ( map
59 (name: { name = name+".ipxe"; value = scriptFile name; })
60 scripts
61 );
62 };
63
64}