Requirements

You will need the following items:

• The SNS firewall you want to restore, on which:
  • Maintenance is enabled,
  • The Secure Boot feature is disabled.
    To find out how to disable Secure Boot, please refer to the Technical Note on Managing Secure Boot in SNS firewalls' UEFI.
• Depending on the model of the SNS firewall in question: a VGA monitor, an HDMI monitor, a PS2 keyboard, a USB keyboard and a PC in console mode,
• A USB drive with at least 8 GB of available space,
• A PC with an Internet browser. For a computer running in Windows, the procedure indicated in this document was successfully tested in Windows XP, Windows Vista 32 bits, Windows 7 and Windows 10.