From 4ebe5a3375cb2fc4cec94185b79e6b330f4d48b2 Mon Sep 17 00:00:00 2001
From: dramforever <dramforever@live.com>
Date: Fri, 31 Jul 2026 19:42:53 +0800
Subject: [PATCH] nixos/tests/predictable-interface-names: Fix systemd
 reference

pkgs.systemd does not respect config.systemd.package and
config.boot.initrd.systemd.package overrides. Fix references to the
systemd package to ensure that the udevadm used is copied into the
initrd.

(cherry picked from commit 60be170a3a6693186e1472d594188147c2fa7dc1)
---
 nixos/tests/predictable-interface-names.nix | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/nixos/tests/predictable-interface-names.nix b/nixos/tests/predictable-interface-names.nix
index 6282c433bae7..f1f0f80fea0e 100644
--- a/nixos/tests/predictable-interface-names.nix
+++ b/nixos/tests/predictable-interface-names.nix
@@ -43,10 +43,15 @@ pkgs.lib.listToAttrs (
         meta = { };
 
         nodes.machine =
-          { pkgs, lib, ... }:
+          {
+            config,
+            pkgs,
+            lib,
+            ...
+          }:
           let
             script = ''
-              ${lib.getExe' pkgs.systemd "udevadm"} settle --timeout=180
+              ${lib.getExe' config.boot.initrd.systemd.package "udevadm"} settle --timeout=180
               ip link
               if ${lib.optionalString predictable "!"} ip link show eth0; then
                 echo Success