user manual

10-4
Dealing With Problems
Managing a Boot Failure
Managing a Boot Failure
The boot program is located in the firmware of the Model 743/744. You can
configure the behavior of the boot process by interacting with the boot con-
sole handler. See the appropriate owner’s guide for your board computer for
procedures to deal with the boot console handler. If you have indications that
the boot process has failed, check the following items.
Boot Program Initializes Hardware
Problems during the first stage of the boot process are rare. At this stage
problems can be caused by:
• No power to the VMEbus chassis (check the local circuit breakers and the
power connections to your VMEbus chassis).
• Processor hardware failure.
• Interface card hardware failure.
The processor isn’t fully plugged into the Model 748i VMEbus slot.
The LAN MAU connector is loose.
• Incorrectly connected SCSI cable.
Turn off the power to the VMEbus chassis. Wait five or ten seconds
and turn the power to the system back on.
If the problem recurs, record the symptoms, the status of any indicators
(especially any LED displays) on your processor, and any messages
that appear on your system console.
At this stage in the boot process, most of the problems that occur require
your hardware to be serviced by a person trained and qualified to do so.