mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 14:11:36 +00:00
119c8f91e7
Setting nixosVersion to something custom is useful for meaningful GRUB menus and /nix/store paths, but actuallly changing it rebulids the whole system path (because of `nixos-version` script and manual pages). Also, changing it is not a particularly good idea because you can then be differentitated from other NixOS users by a lot of programs that read /etc/os-release. This patch introduces an alternative option that does all you want from nixosVersion, but rebuilds only the very top system level and /etc while using your label in the names of system /nix/store paths, GRUB and other boot loaders' menus, getty greetings and so on.
109 lines
3.1 KiB
Nix
109 lines
3.1 KiB
Nix
{ config, lib, pkgs, ... }:
|
||
|
||
with lib;
|
||
|
||
let
|
||
|
||
autologinArg = optionalString (config.services.mingetty.autologinUser != null) "--autologin ${config.services.mingetty.autologinUser}";
|
||
gettyCmd = extraArgs: "@${pkgs.utillinux}/sbin/agetty agetty --login-program ${pkgs.shadow}/bin/login ${autologinArg} ${extraArgs}";
|
||
|
||
in
|
||
|
||
{
|
||
|
||
###### interface
|
||
|
||
options = {
|
||
|
||
services.mingetty = {
|
||
|
||
autologinUser = mkOption {
|
||
type = types.nullOr types.str;
|
||
default = null;
|
||
description = ''
|
||
Username of the account that will be automatically logged in at the console.
|
||
If unspecified, a login prompt is shown as usual.
|
||
'';
|
||
};
|
||
|
||
greetingLine = mkOption {
|
||
type = types.str;
|
||
description = ''
|
||
Welcome line printed by mingetty.
|
||
The default shows current NixOS version label, machine type and tty.
|
||
'';
|
||
};
|
||
|
||
helpLine = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
Help line printed by mingetty below the welcome line.
|
||
Used by the installation CD to give some hints on
|
||
how to proceed.
|
||
'';
|
||
};
|
||
|
||
serialSpeed = mkOption {
|
||
type = types.listOf types.int;
|
||
default = [ 115200 57600 38400 9600 ];
|
||
example = [ 38400 9600 ];
|
||
description = ''
|
||
Bitrates to allow for agetty's listening on serial ports. Listing more
|
||
bitrates gives more interoperability but at the cost of long delays
|
||
for getting a sync on the line.
|
||
'';
|
||
};
|
||
|
||
};
|
||
|
||
};
|
||
|
||
|
||
###### implementation
|
||
|
||
config = {
|
||
# Note: this is set here rather than up there so that changing
|
||
# nixosLabel would not rebuild manual pages
|
||
services.mingetty.greetingLine = mkDefault ''<<< Welcome to NixOS ${config.system.nixosLabel} (\m) - \l >>>'';
|
||
|
||
systemd.services."getty@" =
|
||
{ serviceConfig.ExecStart = gettyCmd "--noclear --keep-baud %I 115200,38400,9600 $TERM";
|
||
restartIfChanged = false;
|
||
};
|
||
|
||
systemd.services."serial-getty@" =
|
||
{ serviceConfig.ExecStart =
|
||
let speeds = concatStringsSep "," (map toString config.services.mingetty.serialSpeed);
|
||
in gettyCmd "%I ${speeds} $TERM";
|
||
restartIfChanged = false;
|
||
};
|
||
|
||
systemd.services."container-getty@" =
|
||
{ unitConfig.ConditionPathExists = "/dev/pts/%I"; # Work around being respawned when "machinectl login" exits.
|
||
serviceConfig.ExecStart = gettyCmd "--noclear --keep-baud pts/%I 115200,38400,9600 $TERM";
|
||
restartIfChanged = false;
|
||
};
|
||
|
||
systemd.services."console-getty" =
|
||
{ serviceConfig.ExecStart = gettyCmd "--noclear --keep-baud console 115200,38400,9600 $TERM";
|
||
serviceConfig.Restart = "always";
|
||
restartIfChanged = false;
|
||
enable = mkDefault config.boot.isContainer;
|
||
};
|
||
|
||
environment.etc = singleton
|
||
{ # Friendly greeting on the virtual consoles.
|
||
source = pkgs.writeText "issue" ''
|
||
|
||
[1;32m${config.services.mingetty.greetingLine}[0m
|
||
${config.services.mingetty.helpLine}
|
||
|
||
'';
|
||
target = "issue";
|
||
};
|
||
|
||
};
|
||
|
||
}
|