NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST mdadm-2.6 x86_64-linux /nix/store/gnv74nasp0cyrvcarmg0b6fiv0zvnzy2-mdadm-2.6.drv /nix/store/h3pwfdhv5mpcnrl8qikvan6yippclccy-mdadm-2.6