Cisco Systems UCSCPCIEBTG, 57712 manual Recovering from a Corrupted Bios, Scope bios

Server Utilities

Recovering from a Corrupted BIOS

	Command or Action	Purpose
Step 2	Server /bios # clear-cmos	After a prompt to confirm, clears the CMOS
		memory.

This example clears the BIOS CMOS memory:

Server# scope bios

Server /bios # clear-cmos

This operation will clear the BIOS CMOS.

Note: Server should be in powered off state to clear CMOS.

Continue?[yn] y

Server /bios #

Recovering from a Corrupted BIOS

Note This procedure is not available in some server models.

In addition to this procedure, there are three other methods for recovering from a corrupted BIOS:

•Use the Cisco Host Upgrade Utility (HUU). This is the recommended method.

•Use the CIMC GUI interface.

•If your server model supports it, use the BIOS recovery function of the hardware jumper on the server motherboard. For instructions, see the Cisco UCS Server Installation and Service Guide for your server model.

Before You Begin

•You must be logged in as admin to recover from a corrupted BIOS.

•Have the BIOS recovery ISO image ready. You will find the BIOS recovery ISO image under the Recovery folder of the firmware distribution package.

•Schedule some down time for the server because it will be power cycled at the end of the recovery procedure.

Procedure

	Command or Action		Purpose
Step 1	Server#	scope bios	Enters the bios command mode.
Step 2	Server#	recover	Launches a dialog for loading the BIOS recovery
			image.

	Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5
176	OL-28893-01