diff --git a/README.md b/README.md
index ba78364..5bbb91e 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,9 @@
 The playbook is designed to be run on a separate control machine that has a recent version of Ansible installed (e.g., a laptop).
 Here are the basic steps for installing a new OpenCloud cluster named 'foo':
 
+* Install Ubuntu 14.04 LTS on the head and compute nodes.
 * Create *foo-setup.yaml* and *foo-compute.yaml* files using *singapore-setup.yaml* and *singapore-compute.yaml* as templates.  
-  * Change the *- hosts:* lines as appropriate for your own head and compute nodes .  
+  * Change the *- hosts:* lines as appropriate for your own head and compute nodes.  
   * Change *opencloud3.sing.internet2.edu* to the DNS name of your head node.
 * On the control machine, run: *$ ansible-playbook foo-setup.yaml*.  This will set up Juju, use it to install the OpenStack services on the head node, and prep the compute nodes.
 * Log into the head node.  For each compute node, put it under control of Juju, e.g.: *$ juju add-machine ssh:ubuntu@compute-1*.