From 7d3dcd9a8c36bf33314a664c9d7c90b7ef4d73dd Mon Sep 17 00:00:00 2001
From: Rob Vermaas <rob.vermaas@gmail.com>
Date: Mon, 12 May 2014 12:29:04 +0200
Subject: [PATCH] Set console=ttyS0 for Amazon EC2 instances, as suggested by
 Amazon.

---
 nixos/modules/virtualisation/amazon-image.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nixos/modules/virtualisation/amazon-image.nix b/nixos/modules/virtualisation/amazon-image.nix
index 8ce89c09b244..138047a07db0 100644
--- a/nixos/modules/virtualisation/amazon-image.nix
+++ b/nixos/modules/virtualisation/amazon-image.nix
@@ -70,6 +70,7 @@ with lib;
 
   boot.initrd.kernelModules = [ "xen-blkfront" ];
   boot.kernelModules = [ "xen-netfront" ];
+  boot.kernelParams = [ "console=ttyS0" ];
 
   # Generate a GRUB menu.  Amazon's pv-grub uses this to boot our kernel/initrd.
   boot.loader.grub.version = 1;