title: AWS Block Devices name doesn't match with CentOS SoftLink
body: <p>On AWS EC2 Block Device is identified as <code>/dev/sda</code>, <code>/dev/sdf</code> and <code>/dev/sdg</code>, but inside EC2 CentOS instance when I do <code>ll /dev/sd*</code> it gives following:</p>
  
  <pre><code>lrwxrwxrwx. 1 root root 4 Feb 17 03:10 /dev/sda -&gt; xvde
  lrwxrwxrwx. 1 root root 4 Feb 17 03:10 /dev/sdj -&gt; xvdj
  lrwxrwxrwx. 1 root root 4 Feb 17 03:10 /dev/sdk -&gt; xvdk
  lrwxrwxrwx. 1 root root 5 Feb 17 03:10 /dev/sdk1 -&gt; xvdk1
  </code></pre>
  
  <p>When I run <code>ec2-describe-instances --aws-access-key xxxxxx&lt;MyKey&gt;xxx --aws-secret-key xxxxxx&lt;MyKey&gt;xxx --region us-east-1 ``curl -s http://169.254.169.254/latest/meta-data/instance-id`` | grep -i BLOCKDEVICE</code> output is as follow:</p>
  
  <pre><code>/dev/sda
  /dev/sdf
  /dev/sdg
  </code></pre>
  
  <p>I am wondering how to link these two: AWS GUI Console's Block Devices and within EC2 instance Block Devices?</p>
  
  <p>Thanks,</p>