title: tftp an application using uefi shell
body: <p>I want to flash and upgrade my tianocore boot loader from the uefi shell.
  Is it possible in this manner ?</p>
  
  <ol>
  <li><p>download the tianocore firmware image from a server using tftpboot on uefi shell.</p></li>
  <li><p>Erasing the NOR flash and writing the new firmware image on the NOR flash again on uefi shell.</p></li>
  </ol>
  
  <p>Are there any uefi shell commands that can perform the above operations or is there any other way to do that without writing a new application ?</p>
  
  <p>Thanks,</p>
  
  <p>devendra</p>