From a4f7868edf40fde2acdca1118a338963e52124fe Mon Sep 17 00:00:00 2001
From: r-vdp <ramses@well-founded.dev>
Date: Wed, 16 Oct 2024 17:33:44 +0200
Subject: [PATCH] nixos/etc-overlay: fix VM test for immutable overlay

---
 nixos/tests/activation/etc-overlay-immutable.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nixos/tests/activation/etc-overlay-immutable.nix b/nixos/tests/activation/etc-overlay-immutable.nix
index 2e5389f20227..601ac77cbd84 100644
--- a/nixos/tests/activation/etc-overlay-immutable.nix
+++ b/nixos/tests/activation/etc-overlay-immutable.nix
@@ -15,6 +15,10 @@
     boot.kernelPackages = pkgs.linuxPackages_latest;
     time.timeZone = "Utc";
 
+    # The standard resolvconf service tries to write to /etc and crashes,
+    # which makes nixos-rebuild exit uncleanly when switching into the new generation
+    services.resolved.enable = true;
+
     environment.etc = {
       "mountpoint/.keep".text = "keep";
       "filemount".text = "keep";