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How to switch to NixOS development version

Written by Solène, on 17 May 2021.
Tags: #nixos

Comments on Mastodon

This short guide will explain you how to switch a NixOS installation to the unstable channel, understand the development version.

nix-channel --add https://channels.nixos.org/nixos-unstable nixos

You will have to reload the channel list using the command "nix-channel --update" and then you can upgrade your system using "nixos-rebuild switch".

If you have issues, you can rollback using "nix-channel --rollback" that will set the channels list to the last state before "--update".

Nix channels wiki page

Nix-channel man page