nixos/stage-1: fix predictable interfaces names

This makes predictable interfaces names available as soon as possible with udev by adding the default network link units to initrd which are read by udev. Also adds some udev rules that are needed but which would normally loaded from the udev store path which is not included in the initrd.
2020-02-08 14:04:02 +01:00
parent cfd4d4557a
commit 44e289f93b
3 changed files with 23 additions and 4 deletions
@@ -17,6 +17,12 @@ in pkgs.lib.listToAttrs (pkgs.lib.crossLists (predictable: withNetworkd: {
      networking.useNetworkd = withNetworkd;
      networking.dhcpcd.enable = !withNetworkd;
      networking.useDHCP = !withNetworkd;
+
+      # Check if predictable interface names are working in stage-1
+      boot.initrd.postDeviceCommands = ''
+        ip link
+        ip link show eth0 ${if predictable then "&&" else "||"} exit 1
+      '';
    };

    testScript = ''