copying NixOS/Nixpkgs sources...

*** Copying ‘/nix/store/2jr0yrapv1j4igmgai0nhddg9naqggg7-nixos-16.09.1229.f52eaf4’ from ‘/tmp/root/nix/store/2jr0yrapv1j4igmgai0nhddg9naqggg7-nixos-16.09.1229.f52eaf4’

warning: Nix search path entry ‘/nix/var/nix/profiles/per-user/root/channels’ does not exist, ignoring
created 1 symlinks in user environment
finalising the installation...
updating GRUB 2 menu...
installing the GRUB 2 boot loader on /dev/sda...
Installing for i386-pc platform.
/nix/store/0pfy69722ghxdbfnyfsv9arhbgz09ala-grub-2.x-2015-11-16/sbin/grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible.
/nix/store/0pfy69722ghxdbfnyfsv9arhbgz09ala-grub-2.x-2015-11-16/sbin/grub-install: warning: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
/nix/store/0pfy69722ghxdbfnyfsv9arhbgz09ala-grub-2.x-2015-11-16/sbin/grub-install: error: will not proceed with blocklists.
/nix/store/s4pr1aqv8g08kbrf5rc16jcry6qr5c17-install-grub.pl: installation of GRUB on /dev/sda failed

Configuration.nix:
# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  # boot.loader.grub.efiSupport = true;
  # boot.loader.grub.efiInstallAsRemovable = true;
  # boot.loader.efi.efiSysMountPoint = "/boot/efi";
  # Define on which hard drive you want to install Grub.
  boot.loader.grub.device = "/dev/sda"; # or "nodev" for efi only

  # networking.hostName = "nixos"; # Define your hostname.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Select internationalisation properties.
  # i18n = {
  #   consoleFont = "Lat2-Terminus16";
  #   consoleKeyMap = "us";
  #   defaultLocale = "en_US.UTF-8";
  # };

  # Set your time zone.
  # time.timeZone = "Europe/Amsterdam";

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  # environment.systemPackages = with pkgs; [
  #   wget
  # ];

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable the X11 windowing system.
  # services.xserver.enable = true;
  # services.xserver.layout = "us";
  # services.xserver.xkbOptions = "eurosign:e";

  # Enable the KDE Desktop Environment.
  # services.xserver.displayManager.kdm.enable = true;
  # services.xserver.desktopManager.kde4.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  # users.extraUsers.guest = {
  #   isNormalUser = true;
  #   uid = 1000;
  # };

  # The NixOS release to be compatible with for stateful data such as databases.
  system.stateVersion = "16.09";

}