Appendix D
Disk and Device Errors
This appendix describes
MS-DOS
disk and device
error
messages_
Refer to Appendix
E,
"MS-DOS Message Directory," for
other
MS-DOS
messages_
If a disk
or
device
error
occurs at any time during a
command
or
program,
MS-DOS
displays an
error
message in
the
following format:
type action device
Abort,Retry,Ignore:_
This appendix lists
the
type, action, and device messages in
separate sections_
Type
Messages
The
type message
is
one
of
the
following:
Bad call format error
• The length
of
the request header passed to the device header
was incorrect.
Bad command error
• A device driver issued
an
incorrect
command
to the device
specified
in
the error message.
Bad unit error
•
Invalid
subunit
numbers were passed to the device driver.
Data error
• MS-DOS could
not
read the data
from
the
disk
properly. This is
often
due
to a defective
disk
Try choosing R
(for
Retry) several times,
or
choose
A
(for
Abort)
to
end
the
program_ (It's a
good
idea
to
make a
new
copy
of
the
disk, because if it's defective, you may lose
information_ )
267
B
[l
To Next Page
Loading...
