From ba42d639f16dc774f4fa661243b640b034d7be0a Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Fri, 25 Jun 2021 09:50:52 +0200
Subject: [PATCH] nixos/getty: add missing --keep-baud

systemd ships `units/serial-getty@.service.m4` with the `--keep-baud`
option.

We override that unit, and didn't add the `--keep-baud` option. (We have
it in our other getty options there).

Having `--keep-baud` in `serial-getty@` makes a lot of sense - the
console keeps working if it's initialized with a less standard baud
rate, such as the [Helios64](https://wiki.kobol.io/helios64/intro/).
---
 nixos/modules/services/ttys/getty.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/ttys/getty.nix b/nixos/modules/services/ttys/getty.nix
index 2480e681de8d..8345dfabeb7e 100644
--- a/nixos/modules/services/ttys/getty.nix
+++ b/nixos/modules/services/ttys/getty.nix
@@ -118,7 +118,7 @@ in
       let speeds = concatStringsSep "," (map toString config.services.getty.serialSpeed); in
       { serviceConfig.ExecStart = [
           "" # override upstream default with an empty ExecStart
-          (gettyCmd "%I ${speeds} $TERM")
+          (gettyCmd "%I --keep-baud ${speeds} $TERM")
         ];
         restartIfChanged = false;
       };