Updating BIOS in console mode from a USB drive
This section describes the procedure of updating BIOS on an SN-L-Series (SN-L-Series-2200 and SN-L-Series-3200) model firewall to version R1.06 in console mode from a USB drive.
Required equipment
Connection to the SN-L-Series firewall from a computer:
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A blank USB flash drive formatted to FAT32.
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A USB-A to USB-C cable, or an RJ45 to DB9 serial cable (RS232).
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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 SN-L-Series firewall from a monitor:
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A blank USB flash drive formatted to FAT32.
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USB key.
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A monitor and HDMI cable.
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A computer with Internet access.
Important information regarding certain SNS firewall features
These features need to be configured again after a BIOS update:
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Password to access the UEFI control panel: if one has been configured, it will be deleted if BIOS is being updated from version R1.02. You will need to set it again. As of version R1.05, passwords will be retained.
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Secure Boot: in order to update BIOS, Secure Boot needs to be disabled. Secure Boot will need to be enabled again after the update.
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TPM: if you had initialized the TPM, the features that use certificates with TPM-protected private keys (VPN, SMC-managed firewall, 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.