Troubleshoot Infrastructure

Recovering the Corrupt BIOS on a Blade Server

On rare occasions, an issue with a blade server may require you to recover the corrupted BIOS. This procedure is not part of the normal maintenance of a server. After you recover the BIOS, the blade server boots with the running version of the firmware for that server.

Before you begin


Important

Remove all attached or mapped USB storage from a server before you attempt to recover the corrupt BIOS on that server. If an external USB drive is attached or mapped from vMedia to the server, BIOS recovery fails.

Procedure

  Command or Action Purpose

Step 1

UCS-A# scope server chassis-id / server-id

Enters chassis server mode for the specified blade server in the specified chassis.

Step 2

UCS-A /chassis/server # recover-bios version

Loads and activates the specified BIOS version.

Step 3

UCS-A /chassis/server # commit-buffer

Commits the transaction.

Example

The following example shows how to recover the BIOS: 

UCS-A# scope server 1/7
UCS-A /chassis/server # recover-bios S5500.0044.0.3.1.010620101125
UCS-A /chassis/server* # commit-buffer
UCS-A /chassis/server #

Recovering the Corrupt BIOS on a Rack-Mount Server

On rare occasions, an issue with a rack-mount server may require you to recover the corrupted BIOS. This procedure is not part of the normal maintenance of a rack-mount server. After you recover the BIOS, the rack-mount server boots with the running version of the firmware for that server.

Before you begin


Important

Remove all attached or mapped USB storage from a server before you attempt to recover the corrupt BIOS on that server. If an external USB drive is attached or mapped from vMedia to the server, BIOS recovery fails.

Procedure

  Command or Action Purpose

Step 1

UCS-A# scope server server-id

Enters server mode for the specified rack-mount server.

Step 2

UCS-A /server # recover-bios version

Loads and activates the specified BIOS version.

Step 3

UCS-A /server # commit-buffer

Commits the transaction.

Example

The following example shows how to recover the BIOS: 

UCS-A# scope server 1
UCS-A /server # recover-bios S5500.0044.0.3.1.010620101125
UCS-A /server* # commit-buffer
UCS-A /server #