Patent ID: 7337309
Filing Date: 2008-02-26
Classification: G06F

Abstract:
1. A method, comprising: loading a current BIOS image from a first portion of a BIOS storage device of a computer system during a boot of the computer system; receiving a new BIOS image at the computer system; storing the new BIOS image into a computer system buffer; writing the new BIOS image into a second portion of the BIOS storage device if at least two validation checks of a multi-layer BIOS update check are successfully completed; and providing indicia to the computer system to identify which of the current and new BIOS images stored in the BIOS storage device are to be loaded during a subsequent boot of the computer system according to at least one additional validation check that is different from the at least two validation checks of the multi-layer BIOS update check wherein performing the at least one additional validation check includes performing an access check to verify an address layout to write the new BIOS image is compatible with the address layout of the BIOS storage device.