FAQ/Pinning Nixpkgs: Difference between revisions
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imported>Profpatsch (Move the unstable service section down, since it is less relevant to most people than general nixpkgs pinning) |
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separately on their own terms, and to ensure their deployability is | separately on their own terms, and to ensure their deployability is | ||
not impacted by other systems' requirements. | not impacted by other systems' requirements. | ||
Another reason why one would want to pin nixpkgs is to get older versions of a specific software. [https://lazamar.co.uk/nix-versions/ This site] can show you all the versions a package went through, and what nixpkgs revision to use to get your specific version. | |||
Note: You can <code>sudo nix-channel --remove nixpkgs</code>, but you still need a nix-channel for nixos | |||
<pre> | |||
sudo nix-channel --list | |||
nixos https://nixos.org/channels/nixos-21.05 | |||
</pre> | |||
== Nix 2.0 onwards == | == Nix 2.0 onwards == | ||
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How to upgrade a single package and service to an unstable version | How to upgrade a single package and service to an unstable version | ||
There is probably a better way, especially once flakes | There is probably a better way, especially once flakes come around. Some packages let you specify which <code>package</code> to run as an option but most don't. The following is a generic way that also works for those which don't. | ||
add to configuration.nix a set allowing unstable packages. | add to configuration.nix a set allowing unstable packages. | ||
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where all the stuff just comes from the bind services definition(which you can get from the source link on the nixos options page.) | where all the stuff just comes from the bind services definition(which you can get from the source link on the nixos options page.) | ||
Just replace named variables, and replace <code>${pkgs.bind.out</code> with <code>${pkgs.unstable.bind.out}</code> | Just replace named variables, and replace <code>${pkgs.bind.out</code> with <code>${pkgs.unstable.bind.out}</code> | ||
== See also == | |||
- [https://nix.dev/reference/pinning-nixpkgs Pinning Nixpkgs] | |||
- [https://nix.dev/tutorials/first-steps/towards-reproducibility-pinning-nixpkgs Towards Reproducibility: Pinning Nixpkgs] | |||
- [https://nix.dev/guides/recipes/dependency-management.html Dependency Management] | |||