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-rw-r--r--nixos/modules/virtualisation/amazon-image.nix5
1 files changed, 5 insertions, 0 deletions
diff --git a/nixos/modules/virtualisation/amazon-image.nix b/nixos/modules/virtualisation/amazon-image.nix
index 6bdc661d996..1f3b4c3709a 100644
--- a/nixos/modules/virtualisation/amazon-image.nix
+++ b/nixos/modules/virtualisation/amazon-image.nix
@@ -64,6 +64,11 @@ in
     boot.loader.grub.efiSupport = cfg.efi;
     boot.loader.grub.efiInstallAsRemovable = cfg.efi;
     boot.loader.timeout = 1;
+    boot.loader.grub.extraConfig = ''
+      serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
+      terminal_output console serial
+      terminal_input console serial
+    '';
 
     boot.initrd.network.enable = true;