Specifications

Appendix J: Error Messages and Diagnosis
101
Bad or missing command interpreter
Problem: The DOS operating system cannot find the Command line
interpreter.
Solution(s): Either COMMAND.COM is not present at the specified (or
default) directory level of the boot disk or the “SHELL=”
statement in your CONFIG.SYS lists the file incorrectly (wrong
directory or misspelled).
Operating system not found
Problem: No boot disk could be found.
Solution(s): This could occur in several different ways.
Your hard disk may not be partitioned into logical drive(s). PCs
look for logical drives to boot from. Hard disks are physical
drives; partitions are logical drives.
Your BIOS setup screen has all disks disabled, or if your hard disk
is disabled and no floppy diskette is inserted in the A: drive. Or the
hard disk drive has no active partition set. Run the BIOS setup
program and verify that all disk parameters are correct. If they are,
insert a bootable floppy disk in the A: drive and press enter. If a
hard disk is present, verify that it is properly partitioned and
formatted as a system disk and one partition is set active.
Diskette drive A error or Diskette drive B error
Problem: The floppy diskette(s) installed in the system do not match the
configuration information listed in the BIOS setup screen. This
may be due to incorrect entries in the BIOS setup screen or one or
both drives may not be responding at power-up.
Solution(s): Run the BIOS setup program. Make sure the BIOS setup entries
relating to floppy drives correctly reflect the attached floppy
drives. If you are using the EXP-MX module, drive A should be
set to “1.44M”. If no second floppy drive is attached, set drive B
to NONE. If you have no floppy drives, both drive A and drive B
should be set to none.
Also, verify that all floppy drives are firmly connected (via
subplane or ribbon cable) and that each drive has power.
If you are using an external floppy drive via a front panel
connector, verify that the end of the ribbon cable is not shorting to
the front panel and pin 1 on the front panel connector is connected
to pin 1 on the drive.
Failure - Fixed Disk 0
Problem: The IDE disk controller for drive C cannot be initialized.
Solution(s): If you are using an EXP-MX mass storage module, ensure that the
module is fully seated in the subplane and that the +5V and +12V
LEDs indicate that the module has power.