Deleting a signature from the Forbidden Signatures Database

Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Server Security > Secure Boot Settings > Advanced Secure Boot Options > Forbidden Signatures Database (DBX) Options > Delete Signature and press Enter.
  2. Select a signature from the list and press Enter.
  3. Press Enter to delete the signature.