title: minikube dashboard hang after vm restart
body: <p>I follow <a href="https://kubernetes.io/docs/setup/learning-environment/minikube/" rel="nofollow noreferrer">the guide</a> to install a test minikube on my virtualbox of ubuntu-18.04.
  It's a virtualbox on my windows computer.so I use 
  sudo minikube start --vm-driver=none
  to start minikube.
  then execute minikube dashboard ....I can access <a href="http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/" rel="nofollow noreferrer">http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/</a> with the generated token.
  Everything is well by now.</p>
  
  <p>BUT I need to poweroff my computer on weekends. So I stop minikube and shutdown the ubuntu vm.</p>
  
  <pre><code>sudo minikube stop
  sudo shutdown
  </code></pre>
  
  <p>When I back to work on Monday, I can't access the dashboard UI WEB,
  <code>sudo minikube dashboard</code> hangs until I press Ctrl+C.
  <a href="https://i.stack.imgur.com/YHSHh.png" rel="nofollow noreferrer">minikube dashboard hangs until I press Ctrl+C</a></p>
  
  <p>How can I restore the wei ui? or is there anything I need to do before shutdown the vm?</p>