diff options
Diffstat (limited to 'nixos/modules/profiles/installation-device.nix')
-rw-r--r-- | nixos/modules/profiles/installation-device.nix | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/nixos/modules/profiles/installation-device.nix b/nixos/modules/profiles/installation-device.nix new file mode 100644 index 00000000000..3b058c6e971 --- /dev/null +++ b/nixos/modules/profiles/installation-device.nix @@ -0,0 +1,56 @@ +# Provide a basic configuration for installation devices like CDs. +{ config, pkgs, modules, ... }: + +with pkgs.lib; + +{ + imports = + [ # Enable devices which are usually scanned, because we don't know the + # target system. + ../installer/scan/detected.nix + ../installer/scan/not-detected.nix + + # Allow "nixos-rebuild" to work properly by providing + # /etc/nixos/configuration.nix. + ./clone-config.nix + ]; + + config = { + + # Show the manual. + services.nixosManual.showManual = true; + + # Let the user play Rogue on TTY 8 during the installation. + services.rogue.enable = true; + + # Disable some other stuff we don't need. + security.sudo.enable = false; + + # Include only the en_US locale. This saves 75 MiB or so compared to + # the full glibcLocales package. + i18n.supportedLocales = ["en_US.UTF-8/UTF-8" "en_US/ISO-8859-1"]; + + # Some more help text. + services.mingetty.helpLine = + '' + + Log in as "root" with an empty password. ${ + optionalString config.services.xserver.enable + "Type `start display-manager' to\nstart the graphical user interface."} + ''; + + # Allow sshd to be started manually through "start sshd". + services.openssh.enable = true; + systemd.services.sshd.wantedBy = mkOverride 50 []; + + # Enable wpa_supplicant, but don't start it by default. + networking.wireless.enable = true; + jobs.wpa_supplicant.startOn = pkgs.lib.mkOverride 50 ""; + + # Tell the Nix evaluator to garbage collect more aggressively. + # This is desirable in memory-constrained environments that don't + # (yet) have swap set up. + environment.variables.GC_INITIAL_HEAP_SIZE = "100000"; + + }; +} |