title: Vagrant Ubuntu Can't Resize Disk
body: <p>I have a vagrant instance (using VirtualBox), and I'm using the <a href="https://i.stack.imgur.com/OXvsG.png" rel="nofollow noreferrer">vagrant-disksize</a> plugin to allocate more disk space for it.</p>
  
  <p>However the Ubuntu instance doesn't seem to "see" the extra space.</p>
  
  <p>VirtualBox settings show 20GB virtual and ~6GB actual.</p>
  
  <p>Further inspection of the Ubuntu settings show that only ~6GB are available.</p>
  
  <p>How can I fix this?<a href="https://i.stack.imgur.com/OXvsG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OXvsG.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/tPXLe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tPXLe.png" alt="enter image description here"></a></p>