DEC a-Series Installation And Setup Manual page 33

Table 3-1: System Troubleshooting, continued
Problem
System does not boot.
Possible Cause
Operating system software
is not installed on the hard
disk drive.
Hard drive cable is not
connected or there is no
power to the drive.
System cannot find the boot
device.
Environment variables
incorrectly set.
Hard disk drive is not
correctly formatted or the
requested partition does not
exist.
There is no software on the
requested partition.
Windows NT overwrote the
UNIX or OpenVMS boot
block.
Troubleshooting
Action
Install the appropriate operating
system.
Connect hard drive signal and power
cables.
Check the system configuration for
correct device parameters. Use the
firmware to display system
configuration. Look at the hard disk
configuration to determine what hard
disk is available. Verify the operating
system selection information.
For AlphaBIOS: From the Boot screen,
press [F2] to go to setup. From there,
go to the desired location to correctly
set the environment variables.
For DIGITAL UNIX or OpenVMS:
Type >>>show all to get a list of
all environment variables.
Format the hard disk drive or correctly
partition the hard disk drive using the
supplied software.
Install software on the requested
partition or point to the correct
partition.
Reinstall the operating system.
Installation and Setup Guide 3–5