3d040f9305
Add another option for debugging instead. Lots of users have been complaining about this default behaviour. This patch also cleans up the EFI bootloader entries in the ISO.
84 lines
2.9 KiB
Nix
84 lines
2.9 KiB
Nix
# Provide a basic configuration for installation devices like CDs.
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{ config, pkgs, 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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# Include a copy of Nixpkgs so that nixos-install works out of
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# the box.
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../installer/cd-dvd/channel.nix
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];
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config = {
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# Enable in installer, even if the minimal profile disables it.
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services.nixosManual.enable = mkForce true;
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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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# Automatically log in at the virtual consoles.
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services.mingetty.autologinUser = "root";
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# Some more help text.
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services.mingetty.helpLine =
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''
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The "root" account has an empty password. ${
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optionalString config.services.xserver.enable
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"Type `systemctl start display-manager' to\nstart the graphical user interface."}
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'';
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# Allow sshd to be started manually through "systemctl start sshd".
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services.openssh = {
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enable = true;
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# Allow password login to the installation, if the user sets a password via "passwd"
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# It is safe as root doesn't have a password by default and SSH is disabled by default
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permitRootLogin = "yes";
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};
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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 = mkDefault true;
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systemd.services.wpa_supplicant.wantedBy = 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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# Make the installer more likely to succeed in low memory
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# environments. The kernel's overcommit heustistics bite us
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# fairly often, preventing processes such as nix-worker or
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# download-using-manifests.pl from forking even if there is
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# plenty of free memory.
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boot.kernel.sysctl."vm.overcommit_memory" = "1";
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# To speed up installation a little bit, include the complete
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# stdenv in the Nix store on the CD.
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system.extraDependencies = with pkgs; [ stdenv stdenvNoCC busybox ];
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# Show all debug messages from the kernel but don't log refused packets
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# because we have the firewall enabled. This makes installs from the
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# console less cumbersome if the machine has a public IP.
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networking.firewall.logRefusedConnections = mkDefault false;
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environment.systemPackages = [ pkgs.vim ];
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};
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}
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