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29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
57 lines
1.6 KiB
Nix
57 lines
1.6 KiB
Nix
# Provide a basic configuration for installation devices like CDs.
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{ config, lib, ... }:
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with lib;
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{
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imports =
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[ # Enable devices which are usually scanned, because we don't know the
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# target system.
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../installer/scan/detected.nix
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../installer/scan/not-detected.nix
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# Allow "nixos-rebuild" to work properly by providing
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# /etc/nixos/configuration.nix.
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./clone-config.nix
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];
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config = {
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# Show the manual.
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services.nixosManual.showManual = true;
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# Let the user play Rogue on TTY 8 during the installation.
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services.rogue.enable = true;
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# Disable some other stuff we don't need.
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security.sudo.enable = false;
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# Include only the en_US locale. This saves 75 MiB or so compared to
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# the full glibcLocales package.
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i18n.supportedLocales = ["en_US.UTF-8/UTF-8" "en_US/ISO-8859-1"];
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# Some more help text.
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services.mingetty.helpLine =
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''
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Log in as "root" with an empty password. ${
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optionalString config.services.xserver.enable
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"Type `start display-manager' to\nstart the graphical user interface."}
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'';
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# Allow sshd to be started manually through "start sshd".
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services.openssh.enable = true;
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systemd.services.sshd.wantedBy = mkOverride 50 [];
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# Enable wpa_supplicant, but don't start it by default.
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networking.wireless.enable = true;
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jobs.wpa_supplicant.startOn = mkOverride 50 "";
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# Tell the Nix evaluator to garbage collect more aggressively.
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# This is desirable in memory-constrained environments that don't
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# (yet) have swap set up.
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environment.variables.GC_INITIAL_HEAP_SIZE = "100000";
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};
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}
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