title: Cannot mount vagrant synced folder with nfs
body: <p>I managed to setting up my Symfony2 project inside a ubuntu vagrant box. But it takes around 20 seconds to load the website through it's webserver. After some research, i came up with using nfs for the sync folder. Here're my setting from Vagrantfile:</p>
  
  <pre class="lang-rb prettyprint-override"><code>config.vm.network "private_network", ip: "192.168.56.101"
  config.vm.synced_folder ".", "/vagrant", :nfs =&gt; true, :mount_options =&gt; ["dmode=777","fmode=777"]
  </code></pre>
  
  <p>After starting de vagrant box  i get the following error</p>
  
  <pre><code>==&gt; default: Mounting NFS shared folders...
  The following SSH command responded with a non-zero exit status.
  Vagrant assumes that this means the command failed!
  
  mount -o 'dmode=777,fmode=777' 192.168.56.1:'/Users/marcschenk/Projects/teleboy.ch' /vagrant
  
  Stdout from the command:
  
  Stderr from the command:
  
  stdin: is not a tty
  mount.nfs: an incorrect mount option was specified
  </code></pre>
  
  <p>The VM seems to work, but the synced folder's obviously empty. What did i wrong?</p>
  
  <p>My setup:</p>
  
  <ul>
  <li>Vagrant 1.6.5 &amp; Virtualbox 4.3.18</li>
  <li>Host: OS X 10.10</li>
  <li>Guest: Ubuntu 12.04</li>
  </ul>