Add a test. Broken because unmounts don't work with the squashes?

quickly.nix

@@ -3,7 +3,10 @@
 
 { config, lib, pkgs, ... }:
 
-with lib;
+let
+  inherit (lib) mkOption literalExample;
+  netbootpkgs = pkgs.callPackage ./pkgs {};
+in
 
 {
   options = {
@@ -81,20 +84,20 @@ with lib;
       [ config.system.build.toplevel ];
 
     # Create the squashfs image that contains the Nix store.
-    system.build.squashfsStore = pkgs.makeSquashes {
+    system.build.squashfsStore = netbootpkgs.makeSquashfsManifest {
       name = "iso-manifeiist";
       storeContents = config.netboot.storeContents;
     };
 
-
     # Create the initrd
     system.build.netbootRamdisk = pkgs.makeInitrd {
       inherit (config.boot.initrd) compressor;
       prepend = [
         "${config.system.build.initialRamdisk}/initrd"
         "${(
-          pkgs.makeBetterInitrd {
+          netbootpkgs.makeCpioRecursive {
             name = "better-initrd";
+            inherit (config.boot.initrd) compressor;
             root = config.system.build.squashfsStore;
           }
         )}/initrd"
@@ -118,6 +121,15 @@ with lib;
       boot
     '';
 
+    system.build.ipxeBootDir = pkgs.symlinkJoin {
+      name = "ipxeBootDir";
+      paths = [
+        config.system.build.netbootRamdisk
+        config.system.build.kernel
+        config.system.build.netbootIpxeScript
+      ];
+    };
+
     boot.loader.timeout = 10;
 
     boot.postBootCommands =

test.nix

@@ -0,0 +1,49 @@
+{ pkgs ? import <nixpkgs> {}
+, system ? "x86_64-linux"
+}:
+let
+  inherit (pkgs.lib) concatStringsSep mapAttrsToList;
+  testlib = import "${pkgs.path}/nixos/lib/testing-python.nix" { inherit system pkgs; };
+
+  pythonDict = params: "\n    {\n        ${concatStringsSep ",\n        " (mapAttrsToList (name: param: "\"${name}\": \"${param}\"") params)},\n    }\n";
+
+  makeNetbootTest = name: extraConfig:
+    let
+      config = (
+        import "${pkgs.path}/nixos/lib/eval-config.nix" {
+          inherit system;
+          modules = [
+            ./quickly.nix
+            "${pkgs.path}/nixos/modules/testing/test-instrumentation.nix"
+            { key = "serial"; }
+          ];
+        }
+      ).config;
+
+      machineConfig = pythonDict (
+        {
+          qemuFlags = "-boot order=n -m 2000";
+          netBackendArgs = "tftp=${config.system.build.ipxeBootDir},bootfile=netboot.ipxe";
+        } // extraConfig
+      );
+    in
+      testlib.makeTest {
+        name = "boot-netboot-" + name;
+        nodes = {};
+        testScript = ''
+          machine = create_machine(${machineConfig})
+          machine.start()
+          machine.wait_for_unit("multi-user.target")
+          machine.shutdown()
+        '';
+      };
+in
+{
+  biosNetboot = makeNetbootTest "bios" {};
+
+  uefiNetboot = makeNetbootTest "uefi" {
+    bios = "${pkgs.OVMF.fd}/FV/OVMF.fd";
+    # Custom ROM is needed for EFI PXE boot. I failed to understand exactly why, because QEMU should still use iPXE for EFI.
+    netFrontendArgs = "romfile=${pkgs.ipxe}/ipxe.efirom";
+  };
+}