IBM 6C4 - Manual (Page 81)

4. After the update file has been written to the /tmp/fwupdate directory, enter the
following commands:
cd /usr/lpp/diagnostics/bin
./update_flash -f /tmp/fwupdate/RRyymmdd.img
Attention: Do not overlook the periods (.) in the commands shown above. AIX
commands are case-sensitive. Type them exactly as shown.
You will be asked for confirmation to proceed with the firmware update and the required
reboot. If you confirm, the system will apply the new firmware, reboot, and return to the
AIX prompt. This may take up to ten minutes depending on the configuration of the
system.
Attention: On some systems, the message Wait for rebooting before stopping
may display on the system console. Do not turn off the system until the system has fully
rebooted to the AIX login prompt. If a shutdown is necessary at that time, log in as root
user and issue the shutdown command.
While the update is in progress, you will see Rebooting... on the display for several
minutes.
The firmware update is complete.
Updating System Firmware From the Service Processor Menus
This procedure requires a diskette drive to be installed in the system. This procedure
also requires a set of firmware update diskettes in backup format.
The service processor menus are available while the system is powered off. As a
privileged user, from the service processor main menu, select Service Processor
Setup, then select Reprogram Flash EPROM Menu. The update process requests
update diskettes as needed.
Updating System Firmware from the AIX Service Aids
Note: This service aid is supported only in online diagnostics.
Refer to the detailed instructions that are provided on the Web site with the latest
image.
Updating System Firmware from the AIX Command Line
Refer to the detailed instructions that are provided on the Web site with the latest
image.
Note: The update process can take up to sixty minutes, and the system reboots itself
during the update process.
Chapter 3. Using the Service Processor 63