
When installing a fresh NixOS system it occasionally happens that you encounter issues that are rather hard to track down since `nixos-install(8)` doesn't provide any debugging flags. This patch adds `-L` to force `nix build` to display the build-log on stderr and `-v` to increase the log-level of Nix.
*** 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.