GuestAdditions version mismatch
<p>when I use this command:</p>

<pre><code>vagrant up
</code></pre>

<p>I obtain this error:</p>

<pre><code>[machine1] GuestAdditions versions on your host (4.3.36) and guest (5.0.10) do not match.
</code></pre>

<p>how can I update guest addition from ubuntu shell?</p>