Updating BIOS in console mode from a USB drive

This section describes the procedure of updating BIOS on an SN1100 firewall to version R1.03 in console mode by using a USB drive.

Required equipment

Connection to the SN1100 firewall from a computer:

  • A blank USB flash drive formatted to FAT32.

  • A USB-A to USB-C cable, or an RJ45 to DB9 serial cable (RS232).

  • A computer with a terminal emulator installed, e.g., Putty, configured with a baud rate of 115200, and the PL23XX USB-to-Serial driver installed if the SNS firewall is connected over a USB-C port.

Connection to the SN1100 firewall from a monitor:

  • A blank USB flash drive formatted to FAT32.

  • USB key.

  • A monitor and HDMI cable.

  • A computer with Internet access.

Important information regarding certain SNS firewall features

  • Password to access the UEFI control panel: if you have set one, it will be deleted. You will need to set it again.

  • Secure Boot: in order to update BIOS using a USB key, Secure Boot needs to be disabled. This feature is disabled by default on SN1100 firewalls. If it had been enabled on your firewall, Secure Boot will need to be enabled again after the update.

  • TPM: if you had initialized the TPM, the features that use certificates with TPM-protected private keys (VPN, SNS firewall managed by an SMC server, etc.) will no longer function. Reseal the TPM to restore the features in question.

These procedures are described in the section Required operations following an update.