mirror of
https://codeberg.org/privacy1st/nix-git
synced 2024-11-25 22:35:03 +01:00
210 lines
5.5 KiB
Markdown
210 lines
5.5 KiB
Markdown
# NixOS
|
|
|
|
For each machine, there is a top-level directory, e.g. [yodaTab](yodaTab).
|
|
|
|
## Build and Switch
|
|
|
|
* https://nixos.wiki/wiki/Nixos-rebuild
|
|
|
|
Directly change to new config and make it default:
|
|
|
|
```shell
|
|
sudo nixos-rebuild -I nixos-config=yodaTab/configuration.nix switch
|
|
```
|
|
|
|
## System updates
|
|
|
|
* https://superuser.com/a/1604695
|
|
|
|
```shell
|
|
sudo nix-channel --update
|
|
```
|
|
|
|
```shell
|
|
# The -s param does currently not work for both, .nix and .json file.
|
|
# Workaround: https://github.com/nmattia/niv/pull/133#issuecomment-703322261
|
|
#
|
|
#niv --sources-file=yodaTab/nix/sources.json update
|
|
#
|
|
(cd yodaTab && niv update)
|
|
```
|
|
|
|
Then run `nixos-rebuild switch`, see above.
|
|
|
|
## Garbage Collection
|
|
|
|
* https://nixos.org/manual/nix/stable/package-management/garbage-collection.html
|
|
* https://discourse.nixos.org/t/why-doesnt-nix-collect-garbage-remove-old-generations-from-efi-menu/17592/4
|
|
|
|
For all profiles:
|
|
|
|
```shell
|
|
sudo nix-collect-garbage --delete-older-than 14d
|
|
```
|
|
|
|
Remove old generations from EFI:
|
|
|
|
```shell
|
|
sudo /run/current-system/bin/switch-to-configuration boot
|
|
```
|
|
|
|
## Install Home Manager with niv
|
|
|
|
niv:
|
|
|
|
> Easy dependency management for Nix projects.
|
|
>
|
|
> Nix is a very powerful tool for building code and setting up environments. niv complements it by making it easy to
|
|
> describe and update remote dependencies (URLs, GitHub repos, etc). It is a simple, practical alternative to Nix
|
|
> flakes.
|
|
>
|
|
> https://github.com/nmattia/niv
|
|
|
|
> Niv is an easy dependency management for Nix projects with package pinning.
|
|
>
|
|
> https://github.com/mikeroyal/NixOS-Guide
|
|
|
|
Home Manager:
|
|
|
|
> [Home Manager] allows declarative configuration of user specific (non-global) packages and dotfiles.
|
|
>
|
|
> To avoid breaking users' configurations, Home Manager is released in branches corresponding to NixOS releases (
|
|
> e.g. `release-23.05`).
|
|
>
|
|
> Home Manager provides both the channel-based setup and the flake-based one.
|
|
>
|
|
> https://github.com/nix-community/home-manager
|
|
|
|
Check your channel:
|
|
|
|
```shell
|
|
sudo nix-channel --list
|
|
#=> nixos https://nixos.org/channels/nixos-23.05
|
|
```
|
|
|
|
Use the corresponding branch:
|
|
|
|
```shell
|
|
(cd yodaTab && niv add nix-community/home-manager -n home-manager -b release-23.05)
|
|
```
|
|
|
|
## disko and nixos-anywhere
|
|
|
|
* Introductory presentation: https://pad.lassul.us/cccamp-workshop
|
|
* disko: https://github.com/nix-community/disko
|
|
* nixos-anywhere: https://github.com/numtide/nixos-anywhere/
|
|
|
|
```shell
|
|
# TODO (!)
|
|
```
|
|
|
|
## BTRFS Swap file
|
|
|
|
* https://nixos.wiki/wiki/Btrfs#Swap_file
|
|
* https://wiki.archlinux.org/title/btrfs#Swap_file
|
|
|
|
Summary:
|
|
|
|
* Create subvolume `@swap` directly below top-level subvolume.
|
|
* Mount at `/swap`
|
|
* Create swapfile: `sudo btrfs filesystem mkswapfile --size 8g --uuid clear /swap/swapfile`
|
|
* Regenerate hardware-configuration: `sudo nixos-generate-config --dir yodaTab`
|
|
* Add `swapDevices = [ { device = "/swap/swapfile"; } ];` to hardware configuration and run `nixos-rebuild switch` (see above).
|
|
|
|
## Automount Encrypted Drive
|
|
|
|
* Generate and add keyfile to LUKS device
|
|
* luksOpen and mount drive, e.g. to `/mnt/data1`
|
|
* Re-generate hardware configuration:
|
|
|
|
```shell
|
|
sudo nixos-generate-config --dir yodaTab
|
|
```
|
|
|
|
## GNOME extensions
|
|
|
|
* https://github.com/nix-community/home-manager/issues/284#issuecomment-531384656
|
|
* https://github.com/nix-community/home-manager/issues/284#issuecomment-1321199263
|
|
* Search for packaged
|
|
extensions: https://search.nixos.org/packages?channel=23.05&from=0&size=50&sort=relevance&type=packages&query=gnomeExtensions
|
|
* One has to re-login after
|
|
changes: https://github.com/nix-community/home-manager/issues/284#issuecomment-1328269433
|
|
|
|
```shell
|
|
# TODO
|
|
```
|
|
|
|
## Run an AppImage
|
|
|
|
* https://nixos.wiki/wiki/Appimage
|
|
|
|
```shell
|
|
# Note how your shell prefix changes.
|
|
nix-shell --packages appimage-run
|
|
```
|
|
```shell
|
|
# Inside the shell, you can run an AppImage:
|
|
appimage-run ~/Downloads/ubports-installer_0.10.0_linux_x86_64.AppImage
|
|
```
|
|
|
|
## General Notes
|
|
|
|
* There is controversy about flakes, rather use channels (e.g. with niv)
|
|
|
|
### Nix Pills
|
|
|
|
* https://nixos.org/guides/nix-pills/pr01
|
|
|
|
It provides a tutorial introduction into the Nix package manager and Nixpkgs package collection, in the form of short
|
|
chapters called 'pills'.
|
|
|
|
### Thesis
|
|
|
|
There are two (?) theses about Nix. One is https://edolstra.github.io/pubs/phd-thesis.pdf
|
|
|
|
### Search for packages
|
|
|
|
* https://search.nixos.org/packages?channel=23.05
|
|
|
|
### Search for options
|
|
|
|
* https://search.nixos.org/options?channel=23.05
|
|
* Or `man configuration.nix`
|
|
* https://mipmip.github.io/home-manager-option-search
|
|
* Or `man home-configuration.nix`
|
|
|
|
### Search wich package owns a file
|
|
|
|
```shell
|
|
# Note how your shell prefix changes.
|
|
nix-shell --packages nix-index
|
|
```
|
|
```shell
|
|
# Inside the shell:
|
|
|
|
# Either build the index manually (requires >8GB RAM)
|
|
nix-index
|
|
# Or download weekly build:
|
|
mkdir -p ~/.cache/nix-index/ && wget -q -N https://github.com/nix-community/nix-index-database/releases/latest/download/index-x86_64-linux -O ~/.cache/nix-index/files
|
|
|
|
# Then search for a file
|
|
nix-locate -w '/bash'
|
|
```
|
|
|
|
|
|
### References
|
|
|
|
Some references to websites that helped me create this repository:
|
|
|
|
* https://github.com/Misterio77/nix-starter-configs
|
|
* https://github.com/mikeroyal/NixOS-Guide#getting-started
|
|
|
|
## TODOs
|
|
|
|
* FDE remote SSH unlock: https://nixos.wiki/wiki/Remote_LUKS_Unlocking
|
|
* Impermanence, opt-in to
|
|
persistence: https://github.com/Misterio77/nix-starter-configs/tree/main#try-opt-in-persistance
|
|
* nix-shell / lorri
|
|
* https://ghedam.at/15978/an-introduction-to-nix-shell
|
|
* docker-compose.yml for services and nix-shell to run the code
|