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to Chapter 7, “System Management Services” on page 7-1 for more
information on custom boot lists.
If no bootable image is found in the custom boot list, then the system restarts and
attempts to boot again.
If the custom boot list is discovered to be corrupted, the system rebuilds the custom
boot list according to the default boot list.
Service Mode Boot: Loading Diagnostics
The system unit can be booted in service mode (instead of normal mode) from
either the default boot list or custom boot list. After a successful service mode boot,
the diagnostic programs are started automatically.
Booting in Service Mode from the Default Boot List
To boot in service mode from the default boot list, do the following:
1. Before stopping the programs and operating system, notify your system
administrator and users that the system is going to be shut down.
2. Insert the diagnostic CD-ROM into the CD-ROM drive, if you intend to run
standalone diagnostics.
3. Turn off the system.
4. Wait 30 seconds, then turn on the system.
5. When the keyboard indicator appears during startup, press the F5 key if the
system console is a directly-attached keyboard, or the 5 key if the system
console is an ASCII terminal.
6. Enter any passwords.
Diagnostics loaded from CD-ROM are called standalone diagnostics. Since the
default boot list checks the CD-ROM drive before the disk drive, this procedure is
used to start standalone diagnostics.
6-2 7043 43P Series Service Guide