title: Can't get the boot disk to 200GB
body: <p>I tried creating the disk first via <code>gcutil adddisk</code> and then assigning it to the VM when running <code>gcutil addinstance</code> with the <code>--disk</code> flag. However, this method still results in a 10GB partition even though I set it to 200GB on <code>adddisk</code>.</p>
  
  <p>Here is the disk itself:</p>
  
  <pre><code>INFO: Zone for db2-usc1a detected as us-central1-a.
  +-----------------+--------------------------------------------------------+
  | name            | db2-usc1a                                              |
  | description     |                                                        |
  | creation-time   | 2014-06-11T22:45:39.654-07:00                          |
  | zone            | us-central1-a                                          |
  | status          | READY                                                  |
  | source-snapshot |                                                        |
  | source-image    | projects/centos-cloud/global/images/centos-6-v20140606 |
  | source-image-id | 6290630306542078308                                    |
  | size-gb         | 200                                                    |
  +-----------------+--------------------------------------------------------+
  </code></pre>
  
  <p>But, as you can see, running <code>df -h</code> displays it as 9.9GB:</p>
  
  <pre><code>Filesystem      Size  Used Avail Use% Mounted on
  /dev/sda1       9.9G  4.3G  5.1G  46% /
  tmpfs           7.3G     0  7.3G   0% /dev/shm
  </code></pre>
  
  <p>I have also tried to follow these instructions here: <a href="https://developers.google.com/compute/docs/disks#repartitionrootpd" rel="nofollow">https://developers.google.com/compute/docs/disks#repartitionrootpd</a></p>
  
  <p>However, on reboot, the VM becomes inaccessible so I can't even SSH back onto the machine.</p>
  
  <p>Why is Google enforcing a 10GB image on boot? Why is it not being set to the size I have requested? More importantly, is there a way I can automate this process for our build scripts?</p>