
Note that there is a subtle difference in Nix that causes nixos-rebuild to work and NixOps to fail: $ nix-instantiate '<nixos>' -A config.system.nixosVersion --eval-only "13.10pre34915.50f4822" $ nix-instantiate '<nixos/default.nix>' -A config.system.nixosVersion --eval-only error: opening file `/nix/var/nix/profiles/per-user/root/channels/nixos/.version': No such file or directory Fixes NixOS/nixops#145.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.