title: Unable to use conda in JupyterHub
body: <p>I am currently using &quot;the littlest JupyterHub.&quot;
  When I following the guide and try to use conda to install some package, it comes up with this message and seems like noting have been done.</p>
  <pre><code>$ sudo -E conda install -c conda-forge gdal
  Collecting package metadata (current_repodata.json): | Killed
  </code></pre>
  <p>What should I do to fix it. Thank you!</p>