Mastering via PXE To master an image, follow the steps below:  Boot the machine via PXE and register it:  Type the machine name at the prompt:  In our example, I used the machine gla-win-2. Press Enter, then answer the question with Y if the name is correct or N if it is incorrect and you need to make changes. When the machine reboots, if you followed the steps in Imaging Profiles , simply select the master associated with the profile; or if you are using a standard post-install, you will see the master’s name along with the associated post-install. Below, after the machine has been registered, you’ll see the menu with an additional line:  Click on your master and wait a few minutes; your machine will reboot and come back up in the Medulla console.