Firmware Problem Isolation; Recovering The System Firmware; Starting The Perm Image - IBM BladeCenter JS21 Types 8844 Service Manual

Firmware problem isolation

To isolate a firmware problem, complete the following steps in the order in which
they are listed until the problem is solved.
Step 001
Step 002
Step 003

Recovering the system firmware

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 blade server 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 firmware update, you can recover the TEMP
image from the PERM image.
If your system hangs, you can force the system to start from the PERM image
using the BIOS code page jumper (J14).
v Setting jumper J14 to pins 2 and 3 will force the blade server to start up from the
v Setting jumper J14 to pins 1 and 2 will enable the blade server to start (boot)

Starting the PERM image

To force the blade server to start the PERM (permanent) image, complete the
following steps:
1. Turn off the blade server.
2. Remove the blade server from the BladeCenter unit (see "Removing the blade
3. Remove the blade-server cover (see "Removing the blade server cover" on
4. Locate the BIOS code page jumper (J14) on the system board (see
5. Move the jumper to pins 2 and 3 to enable system firmware recovery mode.
Perform the following steps:
1. If the blade server is operating, shut down the operating system
and turn off the blade server.
2. Turn on the blade server.
3. If the problem no longer occurs, no further action is necessary;
otherwise, continue to Step 002 .
Does the blade server boot up far enough to allow the installation of
server firmware updates?
Yes Check for server firmware updates; then, install the updates
if available.
Continue to Step 003 .
No
Perform the following steps:
1. Go to "Recovering the system firmware."
2. After recovering the system firmware, check for server firmware
updates; then, install the updates if available.
PERM image.
from either the TEMP or PERM image.
server from a BladeCenter unit" on page 143).
page 145).
"System-board jumpers" on page 8).
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Chapter 2. Diagnostics