From 313fa9dc99b2839cfee4dd2bcc6ce3e621466901 Mon Sep 17 00:00:00 2001
From: Val Packett <val@invisiblethingslab.com>
Date: Tue, 16 Sep 2025 23:56:57 -0300
Subject: [PATCH] nixos/top-level: fix cutoffPackages without initialRamdisk

In systems without initrd (e.g. containers) that also use system.replaceDependencies, we'd get:

error: attribute 'initialRamdisk' missing
at /nix/store/8vfhnwmmzqqzy97q9c5m4bzyaqqf63zy-source/nixos/modules/system/activation/top-level.nix:286:21:
   285|       cutoffPackages = mkOption {
   286|         default = [ config.system.build.initialRamdisk ];
      |                     ^

Make that initialRamdisk reference conditional on the initrd being enabled.
---
 nixos/modules/system/activation/top-level.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/system/activation/top-level.nix b/nixos/modules/system/activation/top-level.nix
index 875e2d5410b3..9d33c4a79708 100644
--- a/nixos/modules/system/activation/top-level.nix
+++ b/nixos/modules/system/activation/top-level.nix
@@ -283,8 +283,8 @@ in
       };
 
       cutoffPackages = mkOption {
-        default = [ config.system.build.initialRamdisk ];
-        defaultText = literalExpression "[ config.system.build.initialRamdisk ]";
+        default = lib.optionals config.boot.initrd.enable [ config.system.build.initialRamdisk ];
+        defaultText = literalExpression "lib.optionals config.boot.initrd.enable [ config.system.build.initialRamdisk ]";
         type = types.listOf types.package;
         description = ''
           Packages to which no replacements should be applied.