IBM RS/6000 Enterprise Server M80, Service Manual

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Chapter 6. Loading the System Diagnostics In Service Mode
The system diagnostics can be booted from the default boot list or from the service mode boot list. (The
service mode boot list can be modified using the system diagnostics “Display or Change Bootlist” service
aid. The service mode boot list cannot be modified under the System Management Services).
For more information about using standalone or online diagnostics, see “Using the Standalone and Online
Diagnostics” in RS/6000 and
Eserver
pSeries Diagnostic Information for Multiple Bus Systems , order
number SA38-0509.
Attention: If this system unit is attached to another system, be sure you isolate this system unit before
stopping the operating system or running diagnostic programs. Some system-cabling changes (such as
installing wrap plugs or removing a device from the configuration) may require action by the operator of
the attached system before making the cabling changes on this system.
To load standalone diagnostics from the default boot list, perform the following procedure:
1. Verify with the system administrator and users that all programs may be stopped, then do so.
2. Turn off the system.
Note: If AIX is running, enter the shutdown command.
3. Wait until the Power LED stops flashing and remains off, then press the power button to turn on the
system.
4. Immediately insert the diagnostic CD-ROM into the CD-ROM drive.
5. When or after the keyboard indicator appears during startup, press the numeric 5 key on the
keyboard.
6. Enter any requested passwords.
Online diagnostics can be loaded by booting from a hard file in the custom boot list by pressing the
numeric 6 key on the keyboard.
To boot from the devices listed in the service mode boot list, perform the following procedure:
1. Verify with the system administrator and users that all programs may be stopped, then do so.
2. Turn off the system.
Note: If AIX is running, enter the shutdown command.
3. Wait until the Power LED stops flashing and remains off, then press the power button to turn the
system on.
4. When or after the keyboard indicator appears during startup, press the numeric 6 key on the keyboard.
5. Enter any requested passwords.
After any requested passwords have been entered, the system attempts to boot from the first device of
each type found on the list. If no bootable image is found on the first device of each type on the list, the
system does not search through the other devices of that type for a bootable image; instead, it polls the
first device of the next type.
If all types of devices in the boot list have been polled without finding a bootable image, the system
restarts. This action gives the user the opportunity to start the System Management Services (by pressing
the number 1 key on a directly attached keyboard or the number 1 on an ASCII terminal) before the
system attempts to boot again.
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