Reinstalling NG Firewall on zSeries appliances


In some cases you may need to reinstall Untangle NG Firewall on a zSeries appliance. This article covers the necessary steps.


  • Windows 64 bit
  • USB disk (4 GB or larger)
  • Keyboard
  • Mouse
  • HDMI cable (VGA for z4/z4w)
  • Monitor
  • Internet connection via ethernet

1. Creating the USB installer (15 minutes)

  1. Insert a 4 GB or larger USB disk into a Windows computer
  2. Format the disk using FAT32. Quick format is ok.
  3. In a web browser, navigate to and download the current version.
  4. Unzip the downloaded file.
  5. Copy the entire contents of the folder to the USB disk.
  6. On the USB drive, navigate to utils > win64 and run makeboot64 as administrator.
  7. Press the spacebar to run the script
  8. Press the spacebar again to confirm
  9. Press spacebar again to close the window
  10. Eject the disk.

2. Booting from the Installer (1 minute)

  1. Connect a monitor, keyboard, and mouse to the system.
  2. Insert the USB disk.
  3. Power on the system and press the Delete key to enter the BIOS.
  4. In Save and Exit, select your USB disk beneath Boot Override and press enter. Do NOT choose the UEFI version! 


3. Installing the OS (about 5 minutes)

  1. After selecting your USB disk, confirm the system boots to the Clonezilla screen using the USB disk.
  2. Allow the system to install
  3. When the installation is complete, you will receive a screen like the one below. 
  4. Remove the USB disk.
  5. Power off the system.

4. Provisioning the system (2 minutes)

  1. Connect ethernet with Internet connectivity to port 1 (the Internet port).
  2. Power on the system.
  3. Wait for the system to boot (about 1 minute).
  4. Confirm that the system loads to the desktop environment showing the Untangle logo.
  5. Allow the system to automatically download and execute the setup scripts. (about 30 seconds)image7.png
Important: Once the setup completes successfully, you will see a message saying ā€œImaging Passed!ā€ with a blue screen showing the Serial number and UID (screenshot below). If you see a red screen with an error, please report the output to Untangle.


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