My NixOS

Suppose you choosed to use a profile named "pocket-nixos":

cd /path/of/dir/which/contains/flake-dot-nix
nixos-rebuild switch --flake .#pocket-nixos

Bootstrap

Since flake is not supported by default yet, we might need to build a NixOS version which support flake first.

ln -s /path/to/this/repo/profiles/bootstrap/configuration.nix /etc/nixos/configuration.nix

To be more complete, this bootstrap NixOS provides following supports:

1. offline nixos & nixpkgs manual
2. nix flake support so you can run nixos-rebuild switch --flake
3. visit Internet to download packages and clone repos
4. debug network issue
5. IM (telegram) client to get help from community

Directory Structure

├── flake.nix                           # entrypoint as a Nix Flake
├── profiles/                           # each subdirectory of `profiles/` contains a profile
│   ├── example-nixos/                  # the directory name implies `profileName`
│   │   ├── configuration.nix           # this file import mods from `common/` and `facts/` to get a full configuration of NixOS
│   │   └── hardware-configuration.nix  # the file generated by `sudo nixos-generate-config --show-hardware-config`
├── fact/                               # each subdirectory of fact/ contains facts of a specific aspect
│   ├── user/                           # config for specific user
│   ├── network/                        # config for specific network environment
│   ├── device/                         # config for specific hardware device (monitor, cpu, gpu etc.)
│   └── storage/                        # config for specific disk
├── common/                             # general things that works for everyone
└── README.md

naming rules:

• configuration.nix: NixOS Configuration (See man configuration.nix)
• *.mod.nix: NixOS Module (See man configuration.nix) to be imported by configuration.nix
• *.drv.nix: Nix Derivation to be used by nix-build
• *.pkg.nix: argument of callPackage

Troubleshooting

If there is problem when logging into GUI system, try add this line to disable wayland:

programs.sway.enable = false

And also try to disable sddm to use lightdm

services.xserver.displayManager.sddm.enable = false;

If there is following error message when you type a command which havn't installed yet:

unable to open database file at /run/current-system/sw/bin/command-not-found

type execute following command to fix it:

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

and confirm it with:

command-not-found hello

(or replace hello with some else command which haven't installed yet)