modules/nixos: add armv7l kernel personality patch

nix-community · Dec 9, 2024 · 0a2b92e · 0a2b92e
1 parent 25e81d2
commit 0a2b92e
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diff --git a/modules/nixos/common/armv7l.nix b/modules/nixos/common/armv7l.nix
@@ -0,0 +1,35 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+# https://github.com/NixOS/aarch64-build-box/pull/133
+{
+  config =
+    lib.mkIf
+      (
+        lib.hasPrefix "build" config.networking.hostName
+        && pkgs.stdenv.hostPlatform.system == "aarch64-linux"
+      )
+      {
+        boot.kernelParams = [ "compat_uts_machine=armv7l" ];
+
+        boot.kernelPatches =
+          let
+            name = "compat_uts_machine";
+          in
+          [
+            {
+              inherit name;
+              patch = pkgs.fetchpatch {
+                inherit name;
+                url = "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy/patch/?id=c1da50fa6eddad313360249cadcd4905ac9f82ea";
+                hash = "sha256-357+EzMLLt7IINdH0ENE+VcDXwXJMo4qiF/Dorp2Eyw=";
+              };
+            }
+          ];
+
+        nix.settings.extra-platforms = [ "armv7l-linux" ];
+      };
+}
diff --git a/modules/nixos/common/default.nix b/modules/nixos/common/default.nix
@@ -9,6 +9,7 @@
     ../../shared/known-hosts.nix
     ../../shared/nix-daemon.nix
     ./agenix.nix
+    ./armv7l.nix
     ./builder.nix
     ./security.nix
     ./sops-nix.nix