IBM RS/6000 Enterprise Server M80, Service Manual

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Default Boot List and Service Mode Bootlist
The default boot list is:
1. Diskette
2. CD-ROM
3. Tape
4. Hard file
5. Network
v
Token-ring
v
Ethernet
Pressing the numeric 5 key on the keyboard causes the system to load standalone diagnostics if a
diagnostic CD is present in the CD-ROM drive.
Pressing the numeric 6 key on the keyboard loads online diagnostics from the hard file in the customized
service mode boot list. No diagnostic CD should be in the CD-ROM drive because online diagnostics are
typically run from a hard disk. Like the default boot list, the service mode boot list can contain five entries.
The numeric 6 key works like the numeric 5 key with the following exceptions:
v
The system searches for a boot record according to the service mode boot list.
v If the service mode boot list is discovered by a cyclical redundancy check to be corrupted, the system
rebuilds the service mode boot list according to the default boot list. (The default boot list contains five
entries, and for each matching device type found in the system unit, the system makes an entry in the
custom boot list.)
v
If no service mode boot list is present, the system uses the default boot list.
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Service Guide