title: Private key could not be loaded when I run "knife client list"
body: <p>Configuration file written to /home/ubuntu/sudo /home/ubuntu/chef-repo/.chef/knife.rb</p>
  
  <pre><code>ubuntu@mychefclient:~$ knife client list
  WARNING: No knife configuration file found
  ERROR: Your private key could not be loaded from /etc/chef/client.pem
  Check your configuration file and ensure that your private key is readable
  </code></pre>