NixOS & Home Managerのセットアップメモ

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 ~> ssh nixos@192.168.11.7
The authenticity of host '192.168.11.7 (192.168.11.7)' can't be established.
ED25519 key fingerprint is SHA256:VaSGKAAf3wkC1x9oRLPUurQZtNbhCJswR+emvlXcWMw.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '192.168.11.7' (ED25519) to the list of known hosts.
(nixos@192.168.11.7) Password:

[nixos@nixos:~]$ sudo -i
[root@nixos:~]#

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parted /dev/sda -- mklabel gpt
parted /dev/sda -- mkpart root ext4 512MG -8GB
parted /dev/sda -- mkpart swap linux-swap -8GB 100%
parted /dev/sda -- mkpart ESP fat32 1MB 512MB
parted /dev/sda -- set 3 esp on

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[root@nixos:~]# parted /dev/sda -- print list
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 107GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name  Flags
 3      1049kB  512MB   511MB                ESP   boot, esp
 1      512MB   99.4GB  98.9GB               root
 2      99.4GB  107GB   7999MB               swap  swap


Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
Model: NECVMWar VMware IDE CDR00 (scsi)
Disk /dev/sr0: 1003MB
Sector size (logical/physical): 2048B/2048B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 2      36.2MB  48.8MB  12.6MB  primary               esp

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[root@nixos:~]# ls /dev/sda*
/dev/sda  /dev/sda1  /dev/sda2  /dev/sda3

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mkfs.ext4 -L nixos /dev/sda1
mkswap -L swap /dev/sda2
mkfs.fat -F 32 -n boot /dev/sda3

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[root@nixos:~]# mkfs.ext4 -L nixos /dev/sda1
mke2fs 1.47.0 (5-Feb-2023)
Creating filesystem with 24136448 4k blocks and 6037504 inodes
Filesystem UUID: 7e8133e8-e60b-4229-9ab8-b01dd8d7e44e
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done
Writing inode tables: done
Creating journal (131072 blocks): done
Writing superblocks and filesystem accounting information: done


[root@nixos:~]# mkswap -L swap /dev/sda2
Setting up swapspace version 1, size = 7.4 GiB (7998533632 bytes)
LABEL=swap, UUID=d50a6577-8177-4b57-91d4-1fd3072de068

[root@nixos:~]# mkfs.fat -F 32 -n boot /dev/sda3
mkfs.fat 4.2 (2021-01-31)
mkfs.fat: Warning: lowercase labels might not work properly on some systems

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[root@nixos:~]# ls -la /dev/disk/by-label/
total 0
drwxr-xr-x 2 root root 120 Feb 12 01:24 .
drwxr-xr-x 9 root root 180 Feb 12 01:24 ..
lrwxrwxrwx 1 root root  10 Feb 12 01:24 boot -> ../../sda3
lrwxrwxrwx 1 root root  10 Feb 12 01:24 nixos -> ../../sda1
lrwxrwxrwx 1 root root   9 Feb 12  2024 nixos-minimal-23.11-x86_64 -> ../../sr0
lrwxrwxrwx 1 root root  10 Feb 12 01:24 swap -> ../../sda2

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mount /dev/sda1 /mnt
mkdir /mnt/boot
mount /dev/sda3 /mnt/boot
swapon /dev/sda2

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[root@nixos:~]# df -H | grep sda
/dev/sda1        97G   29k   92G   1% /mnt
/dev/sda3       510M  4.1k  510M   1% /mnt/boot

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[root@nixos:~]# nixos-generate-config --root /mnt
writing /mnt/etc/nixos/hardware-configuration.nix...
writing /mnt/etc/nixos/configuration.nix...
For more hardware-specific settings, see https://github.com/NixOS/nixos-hardware.

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{ config, lib, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "nixos"; # Define your hostname.
  time.timeZone = "Asia/Tokyo";
  i18n.defaultLocale = "en_US.UTF-8";

  users.users.bombrary = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    vim
    git
  ];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  programs.mtr.enable = true;

  services.openssh.enable = true;

  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "23.11"; # Did you read the comment?
}

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[root@nixos:~]# nixos-install

Created EFI boot entry "Linux Boot Manager".
setting up /etc...
setting up /etc...
setting root password...
New password:
Retype new password:
passwd: password updated successfully
installation finished!

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[root@nixos:~]# nixos-enter
setting up /etc...

[root@nixos:/]# passwd bombrary
New password:
Retype new password:
passwd: password updated successfully

[root@nixos:/]# exit
logout

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umount /mnt/boot
umount /mnt

reboot

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~> ssh bombrary@192.168.11.7
(bombrary@192.168.11.7) Password:
Last login: Tue Feb  6 20:30:18 2024 from 192.168.11.6

[bombrary@nixos:~]$ su root

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[bombrary@nixos:~]$ mkdir dotfiles
[bombrary@nixos:~]$ cd dotfiles

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[bombrary@nixos:~/dotfiles]$ mkdir -p hosts/minimal
[bombrary@nixos:~/dotfiles]$ cp /etc/nixos/* hosts/minimal/

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[bombrary@nixos:~/dotfiles]$ nix flake init
wrote: /home/bombrary/dotfiles/flake.nix

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{
  description = "NixOS Configuration";

  inputs = {
    nixos.url = github:NixOS/nixpkgs/nixos-23.11;
  };

  outputs = { self, nixos }: {

    packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello;

    packages.x86_64-linux.default = self.packages.x86_64-linux.hello;

  };
}

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[bombrary@nixos:~/dotfiles]$ nix flake check

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[bombrary@nixos:~]$ man nixos-rebuild
...

--flake flake-uri[#name]
       Build  the  NixOS  system  from the specified flake. It defaults to the directory containing the
       target of the symlink /etc/nixos/flake.nix, if it exists. The flake must contain an output named
       ‘nixosConfigurations.name’. If name is omitted, it default to the current host name.

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{
  description = "NixOS and Home Manager Configuration";

  inputs = {
    nixos.url = github:NixOS/nixpkgs/nixos-23.11;
  };

  outputs = { self, nixos }: {
    nixosConfigurations = {
      minimal = nixos.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/minimal/configuration.nix
        ];
      };
    };
  };
}

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[bombrary@nixos:~/dotfiles]$ nix flake check
[bombrary@nixos:~/dotfiles]$ sudo nixos-rebuild switch --flake '.#minimal'

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[bombrary@nixos:~/dotfiles]$ nix repl
Welcome to Nix 2.18.1. Type :? for help.

nix-repl> flake = builtins.getFlake (toString ./.)

nix-repl> flake
{ _type = "flake"; homeConfigurations = { ... }; inputs = { ... }; lastModified = 1707309872; lastModifiedDate = "20240207124432"; narHash = "sha256-SHjA9tievH601ehouc/NGorEfScmXIYipV4fJX88TkI="; nixosConfigurations = { ... }; outPath = "/nix/store/l0ji9h0c2wr599m6rmmw2hm8hcf1lzqh-source"; outputs = { ... }; sourceInfo = { ... }; }

nix-repl> flake.nixosConfigurations
{ minimal = { ... }; }

nix-repl> flake.nixosConfigurations.minimal
{ _module = { ... }; _type = "configuration"; class = "nixos"; config = { ... }; extendModules = «lambda @ /nix/store/ws5098bfhd2kzvg3yxwb2ggvl05h7gfd-source/nixos/lib/eval-config.nix:113:21»; extraArgs = { ... }; options = { ... }; pkgs = { ... }; type = { ... }; }

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[bombrary@nixos:~/dotfiles]$ nix search nixpkgs [package name]

# NeoVimを検索する例
[nix-shell:~]$ nix search nixpkgs '\.neovim'
* legacyPackages.x86_64-linux.neovim (0.9.5)
  Vim text editor fork focused on extensibility and agility
...

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[bombrary@nixos:~/dotfiles]$ nix registry list
global flake:agda github:agda/agda
global flake:arion github:hercules-ci/arion
global flake:blender-bin github:edolstra/nix-warez?dir=blender
global flake:bundlers github:NixOS/bundlers
global flake:cachix github:cachix/cachix
global flake:composable github:ComposableFi/composable
global flake:disko github:nix-community/disko
global flake:dreampkgs github:nix-community/dreampkgs
global flake:dwarffs github:edolstra/dwarffs
global flake:emacs-overlay github:nix-community/emacs-overlay
global flake:fenix github:nix-community/fenix
global flake:flake-parts github:hercules-ci/flake-parts
global flake:flake-utils github:numtide/flake-utils
global flake:gemini github:nix-community/flake-gemini
global flake:helix github:helix-editor/helix
global flake:hercules-ci-agent github:hercules-ci/hercules-ci-agent
global flake:hercules-ci-effects github:hercules-ci/hercules-ci-effects
global flake:home-manager github:nix-community/home-manager
global flake:hydra github:NixOS/hydra
global flake:mach-nix github:DavHau/mach-nix
global flake:nickel github:tweag/nickel
global flake:nimble github:nix-community/flake-nimble
global flake:nix github:NixOS/nix
global flake:nix-darwin github:LnL7/nix-darwin
global flake:nix-serve github:edolstra/nix-serve
global flake:nixops github:NixOS/nixops
global flake:nixos-hardware github:NixOS/nixos-hardware
global flake:nixos-homepage github:NixOS/nixos-homepage
global flake:nixos-search github:NixOS/nixos-search
global flake:nixpkgs github:NixOS/nixpkgs/nixpkgs-unstable
global flake:nur github:nix-community/NUR
global flake:patchelf github:NixOS/patchelf
global flake:poetry2nix github:nix-community/poetry2nix
global flake:pridefetch github:SpyHoodle/pridefetch
global flake:sops-nix github:Mic92/sops-nix
global flake:systems github:nix-systems/default
global flake:templates github:NixOS/templates

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[bombrary@nixos:~/dotfiles]$ nix search -I nixpkgs=flake:github:NixOS/nixpkgs/nixos-23.11 nixpkgs

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[bombrary@nixos:~/dotfiles]$ mkdir modules
[bombrary@nixos:~/dotfiles]$ touch modules/common.nix

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{ config, lib, pkgs, ... }:

{
  time.timeZone = "Asia/Tokyo";
  i18n.defaultLocale = "en_US.UTF-8";

  users.users.bombrary = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    vim
    git
  ];
}

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{ config, lib, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      ../../modules/common.nix
    ];

  networking.hostName = "nixos"; # Define your hostname.

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "23.11"; # Did you read the comment?
}

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[bombrary@nixos:~/dotfiles]$ git add modules/common.nix
[bombrary@nixos:~/dotfiles]$ sudo nixos-rebuild switch --flake .#minimal

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[bombrary@nixos:~/home-manager]$ nix shell home-manager#docs-manpages

[bombrary@nixos:~/home-manager]$ man home-manager

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--flake flake-uri[#name]
       Build Home Manager configuration from the flake, which must contain the output homeConfigurations.name. If no name is specified it will first try username@hostname and then username.

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init [--switch [dir]]
       Generates an initial home.nix file for the current user. If Nix flakes are  enabled,  then  this
       command also generates a flake.nix file.

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[bombrary@nixos:~/dotfiles]$ mkdir home
[bombrary@nixos:~/dotfiles]$ nix run home-manager -- init home/bombrary
Creating home/bombrary/home.nix...
Creating home/bombrary/flake.nix...

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[bombrary@nixos:~/dotfiles]$ rm home/bombrary/flake.nix

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{
  description = "NixOS and Home Manager Configuration";

  inputs = {
    nixos.url = github:NixOS/nixpkgs/nixos-23.11;
    nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
    home-manager = {
      url = github:nix-community/home-manager;
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixos, nixpkgs, home-manager }: {
    nixosConfigurations = {
      minimal = nixos.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/minimal/configuration.nix
        ];
      };
    };

    homeConfigurations = {
      bombrary = home-manager.lib.homeManagerConfiguration {
        pkgs = import nixpkgs {
          system = "x86_64-linux";
        };
        modules = [
          ./home/bombrary/home.nix
        ];
      };
    };
  };
}

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[bombrary@nixos:~/dotfiles]$ nix flake check
warning: updating lock file '/home/bombrary/dotfiles/flake.lock':
• Added input 'home-manager':
    'github:nix-community/home-manager/21b078306a2ab68748abf72650db313d646cf2ca' (2024-02-11)
• Added input 'home-manager/nixpkgs':
    follows 'nixpkgs'
• Added input 'nixpkgs':
    'github:NixOS/nixpkgs/d934204a0f8d9198e1e4515dd6fec76a139c87f0' (2024-02-10)

[bombrary@nixos:~/dotfiles]$ nix run home-manager -- switch --flake .#bombrary

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[bombrary@nixos:~/config]$ home-manager generations
2024-02-11 11:18 : id 1 -> /nix/store/05ga8qd4vkj73zy4sfva9flj6wasb4wy-home-manager-generation

[bombrary@nixos:~/config]$ home-manager packages
hm-session-vars.sh
home-configuration-reference-manpage
home-manager
man-db-2.12.0
shared-mime-info-2.4

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[bombrary@nixos:~/config]$ home-manager switch --flake .#bombrary

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{
  ...
  home.packages = with pkgs; [
    tmux
    ripgrep
    eza
    bat
    fd
    zig
    deno
  ];

  programs.neovim = {
    enable = true;
    defaultEditor = true;
  };

  programs.git = {
    enable = true;
    userName = "（ユーザ名）";
    userEmail = "（メールアドレス）";
  };

  programs.bash = {
    enable = true;
    shellAliases = {
      ls = "eza --icons";
      cat = "bat";
    };
  };
  ...
}

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[bombrary@nixos:~/dotfiles]$ mkdir config

（ファイルを追加する）

[bombrary@nixos:~/dotfiles]$ nix run nixpkgs#tree -- -a config
config
├── nvim
│   ├── init.lua
│   └── lua
│       └── plugins
│           ├── ddu.lua
│           ├── global.lua
│           └── lsp.lua
└── tmux
    └── .tmux.conf

5 directories, 5 files

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{ config, pkgs, myconfig, ... }:

{
  ...
  home.file = {
    ".tmux.conf" = {
      source = ../../config/tmux/.tmux.conf;
      target = ".tmux.conf";
    };
    "init.lua" = {
      source = ../../config/nvim/init.lua;
      target = ".config/nvim/init.lua";
    };
    "lua" = {
      source = ../../config/nvim/lua;
      target = ".config/nvim/lua";
    };
  };
  ...
}

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[root@nixos:~]# nix shell --extra-experimental-features 'nix-command flakes' nixpkgs#git
[root@nixos:~]# git clone (リポジトリのURL)
[root@nixos:~]# cd dotfiles

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[root@nixos:~]# nixos-generate-config --root /mnt
writing /mnt/etc/nixos/hardware-configuration.nix...
writing /mnt/etc/nixos/configuration.nix...
For more hardware-specific settings, see https://github.com/NixOS/nixos-hardware.

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[root@nixos:~/dotfiles]# mkdir hosts/minimal2
[root@nixos:~/dotfiles]# mv /mnt/etc/nixos/* hosts/minimal2/

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{ config, lib, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      ../../modules/common.nix
    ];
  ...
}

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{
  ...
  outputs = { self, nixos, nixpkgs, home-manager }: {
    nixosConfigurations = {
      ...
      minimal2 = nixos.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          ./hosts/minimal2/configuration.nix
        ];
      };
      ...
    };
}

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[root@nixos:~/dotfiles]# git add .
[root@nixos:~/dotfiles]# nixos-install --flake .#minimal2

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[root@nixos:~/dotfiles]# cd ../

[root@nixos:~]# mv dotfiles /mnt/home/bombrary/