Disclosed is a method, apparatus, and system in which a basic input/output BIOS is run and a non-volatile memory coupled to the BIOS is read. The BIOS determines if legacy partition address data is not present for a disk partition identified in the non-volatile memory, and if legacy partition address data is not present for the disk partition, legacy partition address data may be obtained by a legacy OPROM. The disk drive may then be updated with the legacy partition address data.