1 files changed, 24 insertions, 0 deletions
diff --git a/nixpkgs/nixos/tests/systemd-initrd-modprobe.nix b/nixpkgs/nixos/tests/systemd-initrd-modprobe.nix
new file mode 100644
index 000000000000..0f93492176b4
--- /dev/null
+++ b/nixpkgs/nixos/tests/systemd-initrd-modprobe.nix
@@ -0,0 +1,24 @@
+import ./make-test-python.nix ({ lib, pkgs, ... }: {
+  name = "systemd-initrd-modprobe";
+
+  nodes.machine = { pkgs, ... }: {
+    testing.initrdBackdoor = true;
+    boot.initrd.systemd.enable = true;
+    boot.initrd.kernelModules = [ "loop" ]; # Load module in initrd.
+    boot.extraModprobeConfig = ''
+      options loop max_loop=42
+    '';
+  };
+
+  testScript = ''
+    machine.wait_for_unit("initrd.target")
+    max_loop = machine.succeed("cat /sys/module/loop/parameters/max_loop")
+    assert int(max_loop) == 42, "Parameter should be respected for initrd kernel modules"
+
+    # Make sure it sticks in stage 2
+    machine.switch_root()
+    machine.wait_for_unit("multi-user.target")
+    max_loop = machine.succeed("cat /sys/module/loop/parameters/max_loop")
+    assert int(max_loop) == 42, "Parameter should be respected for initrd kernel modules"
+  '';
+})