title: Amazon EC2: how to convert an existing PV AMI to HVM
body: <h2>Question:</h2>
  
  <p>How should I use the new AWS EC2 classes (r3, i2) with my existing AMI without recreating the whole system setup? </p>
  
  <p>The new EC2 classes support only HVM based virtualization but I have only PVM AMI images.</p>