Questions tagged [nix]

Questions about Nix, the purely functional package manager and its usage and configuration.

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7
votes
1answer
1k views

Local Nix cache is ignored because NAR info file lacks a signature

[partially solved here: https://plus.google.com/110416349762686874861/posts/PVGHL1Tpeb9; but not entirely] I want to use one of my NixOS machines as a cache for the packages, to not pull everything ...
9
votes
1answer
1k views

How do you install a one-off package in NixOS?

I've got a NixOS box that I keep on the nixos-16.03 channel. I want the machine to stay in a mostly-stable state, and so I am wanting to avoid switching to the nixos-unstable channel. However, I ...
3
votes
2answers
754 views

How to build 32-bit application on 64-bit system using Nix package manager?

It seems Nix should be able to install and build 32-bit packages on 64-bit systems. It's caches already store whole nixpkgs tree built for i686 architecture, and there should be no problem to download ...
6
votes
1answer
750 views

Run OpenGL application installed by Nix package manager

When I try to run application which uses OpenGL installed or built with Nix package manager, GLX errors shows up: $ /nix/store/p6fwy23nfcadxr4i780knajvmzga17aa-glxinfo-8.1.0/bin/glxinfo libGL error: ...
2
votes
1answer
297 views

manage packages of the system profile in NixOS

In NixOS how can I manage the system installed packages? If I run nix-env -q from root I get the packages installed by root (and available to all the users), but many are missing like ssh, the whole ...
14
votes
1answer
3k views

How to split /etc/nixos/configuration.nix into separate modules?

Suppose I have a very simple NixOS configuration file: { config, pkgs, ... }: { imports = [ # Include the results of the hardware scan. ./hardware-configuration.nix ]; # SOME ...
13
votes
2answers
990 views

How to find out which (not installed) package a file belongs to on NixOS?

I am using a Nix package manager on NixOS. Suppose I want to install a package that provides a file libgtk-x11-2.0.so.0. How do I find a package that provides this file, similar to other GNU/Linux ...
18
votes
3answers
7k views

How to find the name of a Nix package to install it in configuration.nix?

Suppose I search for a package to install using nix-env's --query operation: $ nix-env -qa 'aspell.*en' aspell-dict-en-7.1-0 I write this package name in /etc/nixos/configuration.nix, NixOS's main ...
1
vote
1answer
346 views

How can I import packages from another mounted Nix store?

I have a USB disk with a nix store (to be more precise, the nix-store.squashfs file from the NixOS installation ISO) mounted at /mnt/foobar. So that when I do ls /mnt/foobar, I see the familiar ...
1
vote
1answer
622 views

List packages I'm losing by running nix-env --delete-generations

I use NixOS, Nix version 1.10. nix-env, Nix package manager's installation command, creates a new generation every time you install a package. This way different package configurations are stored in ...
1
vote
1answer
347 views

View logs for nix-env last installation

I use NixOS: $ nixos-version 16.03pre71289.7ae05ed (Emu) $ nix-env --version nix-env (Nix) 1.10 $ nix-channel --list $ sudo nix-channel --list nixos https://nixos.org/channels/nixos-unstable ...
5
votes
3answers
2k views

Installing Nix or Guix without root permissions?

This answer to the question Non-Root Package Managers suggests Nix as a solution. However, the installation documentation says: The script will invoke sudo to create /nix if it doesn’t already ...
7
votes
2answers
1k views

Best method of copying full /nix/store over the network from one nixos machine to another

Currently I use: find /nix/store/* -maxdepth 1 | xargs -L <N> nix-copy-closure --sign --gzip --use-substitutes --to <remote machine> Where N is some reasonable number that will not make ...
3
votes
0answers
159 views

How to use a package revision not yet in the published nixpkgs (but described in the development branches of nixpkgs)?

I'd like to use the new release of ghc (7.10, because of a new feature -- static ptr), and I'm using a single-user nix environment. I don't find the wanted new release in the published lists at https:...
7
votes
2answers
445 views

Quickly reload nix expression in nix-shell?

When I run nix-shell nix-shell ~/dev/nixpkgs -A pythonPackages.some-package and then edit phases of pythonPackages.some-package, how to reload nix-shell environment with new changes? Quit nix-...
8
votes
2answers
6k views

How to use libraries installed by nix at run-time?

I'm using nix in "single-user mode" in a system where I'm not the root (see below for a description of my nix setup). I wanted to quickly run one of my binaries which is dynamically linked with a ...
5
votes
2answers
905 views

nix package manager: perl warning: Setting locale failed

Whenever I run a command for the nix package manager (e.g. nix-channel --update) I get the following warning: perl: warning: Setting locale failed. perl: warning: Please check that your locale ...
1
vote
1answer
241 views

Unable to install vim plugins

I am unable to install any vim plugins on nixOS running the command: nix-env -i vimplugin-Syntastic gives these as the last 3 lines of output: output path ‘/nix/store/...
17
votes
3answers
3k views

How do I create a local repository for NixOS/nixpkgs?

All the instructions I find for creating a local repository of Nix packages involve creating a local clone of the main nixpkgs repository and adding to that. Is there a way I can create a small ...
9
votes
3answers
2k views

Nix: Skipping unit tests when installing a Haskell package

I'm using Nix to install packages under my home (so no binary packages) on a shared host with limited resources. I'm trying to install git-annex. When building one of its dependencies, haskell-lens, ...
8
votes
1answer
336 views

Preventing Nix from upgrading git to git-full

I'm using Nix on Ubuntu to have more modern versions of some packages, one of them being git. When I'm run nix-env -u, this is what happens: % nix-env -u --dry-run '*' (dry run; not doing anything) ...