Fix NFSv4 test

http://hydra.nixos.org/build/25349071

Changed files
+2 -5
nixos
modules
services
network-filesystems
tests
+1 -4
nixos/modules/services/network-filesystems/nfsd.nix
···
environment.systemPackages = [ pkgs.nfs-utils ];
-
environment.etc = singleton
-
{ source = exports;
-
target = "exports";
-
};
+
environment.etc.exports.source = exports;
boot.kernelModules = [ "nfsd" ];
+1 -1
nixos/tests/nfs.nix
···
{ config, pkgs, ... }:
{ fileSystems = pkgs.lib.mkVMOverride
[ { mountPoint = "/data";
-
device = "server:${if version == 4 then "/" else "/data"}";
+
device = "server:/data";
fsType = "nfs";
options = "vers=${toString version}";
}