Reloading The Flash Eeprom - IBM 7012 G Series Service Manual

Reloading the Flash EEPROM

Follow this procedure to load a new version of SystemGuard into the flash EEPROM. Only
system administrators should perform this procedure.
Prerequisites
To install a new version of the EEPROM firmware, you need either a firmware diskette
containing a binary firmware image, or a file containing the firmware. The operating system
and some operating system updates come with firmware diskettes. Using a diskette is
quicker than using a file.
You can also update the firmware using a file containing a new firmware version. Although
this method takes longer because you have to reboot the system, it is useful in certain
cases. For example, you may not have a diskette, or you may electronically receive a more
recent firmware version from customer service personnel.
Updating the Flash EEPROM (using a firmware diskette)
If the system is not yet powered on, simply insert the firmware diskette in the drive, place the
Mode Switch in the Service position, and then power on the system. The firmware diskette is
identified by a special header which distinguishes it from diskettes containing other data.
The existing firmware recognizes the special header and automatically loads the new
firmware version.
If AIX is already up and running (the run-time phase), reloading the firmware requires more
steps, because you first have to shut down the system, then reboot the machine as
described in the preceding paragraph.
Updating the Flash EEPROM (using a file)
An administrator with root authority can use the AIX diag command to update the EEPROM
firmware using a file. Because this procedure reboots the machine after the update, the root
user who performs this procedure should be the only logged user. If the system is not yet
powered on, power on the system, and log in as the root user without letting other users log
in. Then follow the steps to use when the system is up and running.
If AIX is already up and running (the run-time phase), perform the following steps:
1. Make sure that no other users are logged in to the system (log them out if necessary).
2. Make sure that you have root authority (use the su command if necessary).
3. Enter the diag command.
4. Select Service Aids .
5. Select the BUMP Service Aids option.
6. Select the Flash Eprom Download option.
7. Enter the full path name for the file containing the new flash EEPROM.
8. The system is automatically rebooted
Modifying SystemGuard Parameters
B-7