d2d139e920
device profile. TODO: The current configuration does not reproduce exactly the CD configuration, fix it. svn path=/nixos/trunk/; revision=23913
122 lines
3.7 KiB
Nix
122 lines
3.7 KiB
Nix
{config, pkgs, ...}:
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with pkgs.lib;
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let
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# Location of the repository on the harddrive
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profilePath = toString ./.;
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# Check if the path is from the NixOS repository
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isProfile = path:
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let s = toString path; in
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removePrefix profilePath s != s;
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# Rename NixOS modules used to setup the current device to make findable form
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# the default location of the configuration.nix file.
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getProfileModules =
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map (path: "./nixos/modules/profiles" + removePrefix isProfile (toString path))
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filter (m: isPath m && isProfile m) modules;
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# A dummy /etc/nixos/configuration.nix in the booted CD that
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# rebuilds the CD's configuration (and allows the configuration to
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# be modified, of course, providing a true live CD). Problem is
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# that we don't really know how the CD was built - the Nix
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# expression language doesn't allow us to query the expression being
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# evaluated. So we'll just hope for the best.
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configClone = pkgs.writeText "configuration.nix"
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''
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{config, pkgs, ...}:
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{
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require = [${toString config.installer.cloneConfigIncludes}];
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# Add your own options below and run "nixos-rebuild switch".
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# E.g.,
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# services.openssh.enable = true;
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}
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'';
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in
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{
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options = {
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system.nixosVersion = mkOption {
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default = "${builtins.readFile ../../VERSION}";
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description = ''
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NixOS version number.
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'';
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};
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installer.cloneConfig = mkOption {
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default = true;
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description = ''
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Try to clone the installation-device configuration by re-using it's
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profile from the list of imported modules.
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'';
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};
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installer.cloneConfigIncludes = mkOption {
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default = [];
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example = [ "./nixos/modules/hardware/network/rt73.nix" ];
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description = ''
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List of modules used to re-build this installation device profile.
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'';
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};
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};
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config = {
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installer.cloneConfigIncludes = getProfileModules;
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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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# nixos-install will do a pull from this channel to speed up the
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# installation.
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installer.nixpkgsURL = http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable;
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boot.postBootCommands =
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''
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# Provide a mount point for nixos-install.
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mkdir -p /mnt
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${optionalString config.installer.cloneConfig ''
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# Provide a configuration for the CD/DVD itself, to allow users
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# to run nixos-rebuild to change the configuration of the
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# running system on the CD/DVD.
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cp ${configClone} /etc/nixos/configuration.nix
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''}
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'';
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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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if config.services.xserver.enable then
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"Type `start xserver' to start\nthe graphical user interface."
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else ""
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}
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'';
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# Allow sshd to be started manually through "start sshd". It should
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# not be started by default on the installation CD because the
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# default root password is empty.
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services.openssh.enable = true;
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jobs.sshd.startOn = pkgs.lib.mkOverride 50 "";
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# Enable wpa_supplicant, but don't start it by default.
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networking.enableWLAN = true;
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jobs.wpa_supplicant.startOn = pkgs.lib.mkOverride 50 "";
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};
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}
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