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Recovering the system firmware code
The system firmware is contained in two separate images in the flash memory of
the blade server: temporary and permanent. These images are referred to as TEMP
and PERM, respectively. The system normally starts from the TEMP image, and the
PERM image serves as a backup. If the TEMP image becomes damaged, such as
from a power failure during a flash update, you can recover the TEMP image from
the PERM image.
If the TEMP image becomes damaged, you can see one of two symptoms:
v The system automatically starts from the PERM image. To check whether the
v The system hangs or is non-responsive after the system is started with no
Starting the TEMP image
To force the system to start the TEMP image, complete the following steps:
1. Turn off the blade server.
2. Restart the blade system management processor from the Management
3. Turn on the blade server.
Note: If the blade server does not restart, you must replace the system-board
Recovering the TEMP image from the PERM image
To recover the TEMP image from the PERM image, you must perform the reject
function. The reject function copies the PERM image into the TEMP image. To
perform the reject function, complete the following steps:
1. Reject the TEMP image. Using the Linux operating system, type the following
2. Shut down the blade server using the operating system.
3. Restart the blade system management processor from the Management
4. Turn on the blade server.
You might need to update the firmware code to the latest version. See
http://www.ibm/.com/pc/support for more information about how to update the
firmware code.
58
BladeCenter QS20 Type 0200: Installation and User's Guide
system has started from the PERM image, enter:
cat /proc/device-tree/openprom/ibm,fw-bank
A P is returned.
checkpoints.
Module.
assembly. Contact a service support representative for assistance.
command:
update_flash -r
Module.
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