From 2508b5cef9c5609d72ed9f2016d4cd3906429f20 Mon Sep 17 00:00:00 2001
From: Jeremy Grosser <jeremy@synack.me>
Date: Tue, 19 Mar 2013 18:45:11 -0700
Subject: [PATCH] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index c15db8425d..490608cadc 100644
--- a/README.md
+++ b/README.md
@@ -60,8 +60,11 @@ Installing on Ubuntu 12.04 and 12.10
 
 ```bash
         sudo apt-get install lxc wget bsdtar curl
+        sudo apt-get install linux-image-extra-`uname -r`
 ```
 
+The `linux-image-extra` package is needed on standard Ubuntu EC2 AMIs in order to install the aufs kernel module.
+
 2. Install the latest docker binary:
 
 ```bash