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When GDM launches a new session it will inherit the user's systemd environment (but only unset variables). If `__NIXOS_SET_ENVIRONMENT_DONE` is set in the user's systemd environment it will prevent the environment to be set properly or updated (eg. after having done a system rebuild). Gnome sessions exports their environment to systemd at startup. If something is keeping the user's systemd process alive (eg. ssh) launching a new gnome session after logging out will result in a broken PATH. Specifically the PATH will be inherited from GDM and never reset. We patch GDM to never inherit `__NIXOS_SET_ENVIRONMENT_DONE` so new sessions will always reset their base environment. fixes https://github.com/NixOS/nixpkgs/issues/48255 For more info about the environment setup: https://github.com/NixOS/nixpkgs/pull/45784
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 https://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-18.09 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-18.09
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 18.09 release
- Tests for unstable/master
- Tests for 18.09 release
Communication:
Note: MIT license does not apply to the packages built by Nixpkgs, merely to the package descriptions (Nix expressions, build scripts, and so on). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.