Supermicro X10SRA User Manual download pdf (Page 139)

Appendix D: Dual Boot Block

D-1

Appendix D

Dual Boot Block

D-1 Introduction

This motherboard supports the Dual Boot Block feature, which is the last-

ditch mechanism to recover the BIOS boot block. This section provides

an introduction to the feature.

BIOS Boot Block

A BIOS boot block is the minimum BIOS loader required to enable nec-

essary hardware components for the BIOS crisis recovery ash that will

update the main BIOS block. An on-call BIOS boot-block corruption may

occur due to a software tool issue (see image below) or an unexpected

power outage during BIOS updates.

BIOS Boot Block Corruption Occurrence

When a BIOS boot block is corrupted due to an unexpected power out-

age or a software tool malfunctioning during BIOS updates, you can still

reboot the system by activating switch JBR1 on the motherboard. When

JBR1 is activated, the system will boot from a backup boot block pre-

loaded in the BIOS by the manufacturer.

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AMI Firmware Update Utility vX.XX.XX

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Reading flash . . . . . . . . . . . . . . . . . . . . . . done

-- ME Data Size checking . ok

-- FFS checksums . . . . . . . . ok

Erasing Boot Block . . . . . . . . . . . done

__Updating Boot Block . . . . . . . . 0x00A91000 (13%)

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Supermicro X10SRA User Manual Page 139