nixos/udev: switch `networking.usePredicatableInterfaceNames` to a kernel param

The udev rules we are shipping no longer work with systemd v242 and were
remove upstream some time ago. It seems like the entire renaming is now
done in C and not in the udev rules.

1 files changed, 2 insertions, 4 deletions

diff --git a/nixos/modules/services/hardware/udev.nix b/nixos/modules/services/hardware/udev.nix
index 0266286aaacf9..cb2f1e6621ae5 100644
--- a/nixos/modules/services/hardware/udev.nix
+++ b/nixos/modules/services/hardware/udev.nix
@@ -116,10 +116,6 @@ let
         exit 1
       fi
 
-      ${optionalString config.networking.usePredictableInterfaceNames ''
-        cp ${./80-net-setup-link.rules} $out/80-net-setup-link.rules
-      ''}
-
       # If auto-configuration is disabled, then remove
       # udev's 80-drivers.rules file, which contains rules for
       # automatically calling modprobe.
@@ -282,6 +278,8 @@ in
 
     services.udev.path = [ pkgs.coreutils pkgs.gnused pkgs.gnugrep pkgs.utillinux udev ];
 
+    boot.kernelParams = mkIf (!config.networking.usePredictableInterfaceNames) [ "net.ifnames=0" ];
+
     environment.etc =
       [ { source = udevRules;
           target = "udev/rules.d";