Required operations following a BIOS update

After a BIOS update, launch the following operations in this order:

1. Set the password to access the firewalls’ UEFI control panel, by following the instructions in the technical note Protecting access to the configuration panel of the UEFI on SNS firewalls.

2. Enable Secure Boot by following the instructions in the section Enabling Secure Boot in the SNS firewall’s UEFI in the technical note Managing Secure Boot in SNS firewalls' UEFI.

3. If the TPM had been initialized on the firewall, seal it. This is because after a BIOS update, trusted hash values have changed, preventing the decryption of protected private keys. To seal the TPM, refer to the section Sealing the TPM in the technical note Configuring the TPM and protecting private keys in SNS firewall certificates.
   For more information on the TPM and the PCR, refer to the section How it works in the technical note Configuring the TPM and protecting private keys in SNS firewall certificates.