Cheatsheet: Difference between revisions
imported>Nh2 Add "Evaluate packages for a different platform" |
imported>Nh2 Add "Evaluating NixOS configuration without building" |
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$ nixos-rebuild -I nixpkgs=https://github.com/nixcloud/nixpkgs/archive/release-17.03.tar.gz switch | $ nixos-rebuild -I nixpkgs=https://github.com/nixcloud/nixpkgs/archive/release-17.03.tar.gz switch | ||
</syntaxHighlight> | </syntaxHighlight> | ||
=== Evaluating NixOS configuration without building === | |||
If you only want to evaluate `configuration.nix` without building (e.g. to syntax-check or see if you are using module options correctly), you can use: | |||
<syntaxHighlight lang="console"> | |||
$ nix-instantiate '<nixpkgs/nixos>' -A system | |||
</syntaxHighlight> | |||
This creates the `.drv` file that `nixos-rebuild build` would build. | |||
=== Building a service as a VM (for testing) === | === Building a service as a VM (for testing) === | ||