anchor.diff:  
           description = "Kernel NFS server - mount daemon";
   
  -        startOn = "started nfs-kernel-nfsd";
  +        startOn = "started nfs-kernel-nfsd and started portmap";
           stopOn = "stopping nfs-kernel-exports";
   
           exec = "${pkgs.nfsUtils}/sbin/rpc.mountd -F -f ${exports}";
  
positive.code: 
    config = mkIf config.services.nfsKernel.enable {
  
      environment.etc = singleton
        { source = exports;
          target = "exports";
  
negative.code: 
          description = "Kernel NFS server";
  
          startOn = "started nfs-kernel-exports and started portmap";
          stopOn = "stopping nfs-kernel-exports";
  
          exec = "${pkgs.nfsUtils}/sbin/rpc.nfsd ${if cfg.hostName != null then "-H ${cfg.hostName}" else ""} ${builtins.toString cfg.nproc}";
  