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`nixos-option` evals the description and the '`' is used to define shell commands. Due to this, the following error appears: ``` $ nixos-option services.postgresql.superUser Value: "root" Default: "root" Description: /run/current-system/sw/bin/nixos-option: line 294: root: command not found /run/current-system/sw/bin/nixos-option: line 294: postgres: command not found NixOS traditionally used as superuser, most other distros use . From 17.09 we also try to follow this standard. Internal since changing this value would lead to breakage while setting up databases. ```
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-17.09 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-17.09
For pull-requests, please rebase onto nixpkgs master.
NixOS linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
- Documentation (Nix Expression Language chapter)
- Manual (How to write packages for Nix)
- Manual (NixOS)
- Community maintained wiki
- Continuous package builds for unstable/master
- Continuous package builds for 17.09 release
- Tests for unstable/master
- Tests for 17.09 release
Communication: