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Installation

About the Installation

All of my computers use a 512MB EFI partition and a ext4 partition with a swapfile that’s double the RAM of my machines (with the exception of my desktop, since the ram is quite large, its swapfile is equal to that of the machine).

Home-manager is configured in standalone mode, so when NixOS is rebuilt Home-manager would then also need to be rebuilt manually with home-manager switch.

First-time NixOS Install

  1. Download a NixOS ISO or create custom one with nix experimental features and Nvidia drivers installed by following the instructions over under the Tips file; then boot into the ISO’s live image environment
  2. Download the repo onto the live image copy of NixOS.
  3. Open the terminal and enter the repo directory.
  4. Run nix-shell or nix develop to enter environment with all necessary packages to build the config properly
    • nix-shell is available on any version of nix. However, in order to use nix develop, you must have nix v2.4+, git, and have enabled the flakes and nix-command experimental features. If you are using the custom ISO as stated previously, you can use nix develop without having to do anything additional as the configs already have the needed configurations and dependencies
  5. Follow the instructions over in the Partitioning file!
  6. Run nixos-generate-config --show-hardware-config --root /mnt to create a base configuration file that the installer provides.
  7. Add any of the additional kernel modules as exactly as they appear into the hosts/HOSTNAME/hardware/hardware-configuration file.
  8. Change the FLAKE variable located under home/USERNAME/global/default.nix. Some dotfiles are sym-links that aren’t located on nix store and not having the repo in the location that the variable specifies will cause the links to break. This would in turn result in some apps malfunctioning or not have your settings.
  9. Run nixos-install --flake .#HOSTNAME --root /mnt to install NixOS with the configuration
  10. If you did not set a user password, make sure you use nixos-enter to set a password for the user!
  11. Move repo into the folder located on /mnt that matches your FLAKE environment variable
  12. Restart and the system will boot up into NixOS!

Post Install

Once your system is booted, check out the Post Install file for instructions for system and application setup steps that can only be done once the system is installed and booted.