Cheatsheet: Difference between revisions
imported>Fadenb Created page with "= A cheat sheet and rough mapping between Ubuntu and NixOS = This is meant to give you basic ideas and get you unstuck. NixOS being very different from most distributions, a d..." |
imported>Fadenb No edit summary |
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|Uninstall a package | |||
|<pre>sudo apt-get remove emacs</pre> | |||
|remove from /etc/nixos/configuration.nix | |||
<pre>sudo nixos-rebuild switch</pre> | |||
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|Uninstall a package removing its configuration | |||
|<pre>apt-get purge emacs</pre> | |||
|All configuration is in configuration.nix | |||
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|Update the list of packages | |||
|<pre>sudo apt-get update</pre> | |||
|<pre>sudo nix-channel --update</pre> | |||
|<pre>nix-channel --update</pre> | |||
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|Upgrade packages | |||
|<pre>sudo apt-get upgrade</pre> | |||
|<pre>sudo nixos-rebuild switch</pre> | |||
|<pre>nix-env -u</pre> | |||
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|Check for broken dependencies | |||
|<pre>sudo apt-get check</pre> | |||
|<pre>nix-store --verify --check-contents</pre> | |||
|unneeded! | |||
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|List package dependencies | |||
|<pre>apt-cache depends emacs</pre> | |||
|<pre>nix-store --query --requisites $(readlink -f /run/current-system) | |||
nix-store -q --tree /nix/var/nix/profiles/system</pre> | |||
|<pre>nix-store --query --references\ | |||
$(nix-instantiate '<nixpkgs>' -A emacs)</pre> | |||
For installed packages: | |||
<pre>nix-store --query --references $(which emacs)</pre> | |||
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|List which packages depend on this one (reverse dependencies) | |||
|<pre>apt-cache rdepends emacs</pre> | |||
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|For installed packages (only print reverse dependencies *which are already installed*): | |||
<pre>nix-store --query --referrers $(which emacs)</pre> | |||
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|Verify all installed packages | |||
|<pre>debsums</pre> | |||
|<pre>sudo nix-store --verify --check-contents</pre> | |||
|<pre>nix-store --verify --check-contents</pre> | |||
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|Fix packages with failed checksums | |||
|Reinstall broken packages | |||
|<pre>sudo nix-store --verify --check-contents --repair</pre> | |||
|<pre>nix-store --verify --check-contents --repair</pre> | |||
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|Select major version and stable/unstable | |||
|Change sources.list and apt-get dist-upgrade. A an extremely infrequent and destructive operation. The nix variants are safe and easy to use. | |||
|<pre>nix-channel --add\ | |||
https://nixos.org/channels/nixpkgs-unstable <name></pre> | |||
Add the unstable channel. At that address you will find names for other versions and variants. Name can be any string. | |||
<pre>nix-channel --remove <name></pre> | |||
To eliminate a channel. | |||
<pre>nix-channel --list</pre> | |||
To show all installed channel. | |||
|When run by a user channels work locally, when run by root they're used as the system-wide channels. | |||
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|Private package repository | |||
|PPA | |||
|Define your package tree as in the general column, and include it in configuration.nix, then list your packages in systemPackages to make them available system wide | |||
|See [https://sandervanderburg.blogspot.de/2014/07/managing-private-nix-packages-outside.html] | |||
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|Install a particular version of a package | |||
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