Recovering The System Firmware Code; Recovery Of System Firmware Code Using Service Aids; Starting The Temp Image - IBM JS20 - BladeCenter - 8842 Installation And User Manual

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. This is indicated by the
v The system hangs or is non-responsive after the system is started with no
If your system hangs, you can force the system to start from the PERM image by
using the code page jumper (J14).
v Setting jumper J14 to pins 2 and 3 will force the blade server to start (boot) from
v Setting jumper J14 to pins 1 and 2 will enable the blade server to start (boot)

Recovery of system firmware code using service aids

Linux on pSeries
who have installed and are running the Linux operating system. Users can install
these free diagnostics tools for effective diagnosis and repair of the system in the
rare instance when a system error occurs.
This service aid toolkit provides the key tools required to take advantage of the
inherent pSeries hardware RAS functions as outlined in the Linux on pSeries RAS
White paper available from http://techsupport.services.ibm.com/server/
Linux_on_pSeries/images/Linux_RAS.pdf. These functions include first failure data
capture and error log analysis. With the toolkit installed, problem determination and
correction is greatly enhanced and the likelihood of an extended system outage is
reduced.
The Linux service aids for hardware diagnostics are separate from the operating
system installation and are available for download from the following Web site:
http://techsupport.services.ibm.com/server/lopdiags/.
Note: The Update_Flash command can only be performed if the Linux service

Starting the TEMP image

To force the system to start the TEMP image, complete the following steps:
Note: Do not perform these steps if the system error code 20D00902 has already
1. Turn off the blade server.
2. Remove the blade server (see "Removing the blade server from the
3. Open the blade-server cover (see "Opening the blade server cover" on page 22
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BladeCenter JS20 Type 8842: Installation and User's Guide
error code 20D00902.
checkpoints.
the PERM image.
from either the TEMP or PERM image.
®
service aids for hardware diagnostics are available for customers
tools have been installed on the blade server.
occurred on your system.
BladeCenter unit" on page 21).
for instructions).