VECTOR
4 USER'S
MANUAL
APPENDIX B - TROUBLESHOOT
directory write; therefore, make sure an adequate backup has been made.
Other Disk
Errors
The
following
BDOS
errors will display the particular error message and simply
wait for user input
to
reboot; entering any key will cause a warm boot.
DRIVE
SELECT
.
The
DRIVE
SELECT message will appear when
there
is
an
attempt
to
access a
drive not supported by
the
current
hardware/software
configuration.
(For
instance,
this message will appear
if
you miss the
B:
and type
V:
instead.)
In
this case,
the
drive which is out of
range
is
displayed
along
with
the
error
message. The system reboots following any input from the terminal.
DISK
IS
READ-ONLY
The
DISK
IS
READ-ONLY message will
be
displayed when
there
is
an
attempt
to
write
to
a diskette which has been designated as "READ/ONLY" using
the
STAT
command, or uses a write-protect tab.
Also, note
that
you must enter [CTRL C] whenever you insert a
new
diskette.
Until
you
enter
a
[CTRL
C]
(which
performs
a
warm
boot
for
the
newly-entered floppy), the diskette is considered R/O. The
status
of
the
drive
is
subsequently
changed
back
to
"Read/Write" following a warm boot (unless
the diskette
is
protected
in some other way, of course). Upon displaying
the
READ-ONLY
message,
CP/M
waits
for
any
input
from
the
terminal;
an
automatic warm boot will occur
as
soon as you touch any key. .
FILE
IS
READ-ONLY
The
FILE
IS
READ-ONLY message will be displayed when
there
is
an
attempt
to
change a
file
(by
writing
to
or
erasing
it)
which
has
been
declared
as
"R/O" using the
STAT
command or by an applications program, or
if
the
file is
opened
(by
some program) in
READ-ONLY
mpde. The file
may
be
returned
to
READ/WRITE
status
using the
STAT
command,
if
necessary.
~
CURRENTLY
OPEN
The
FILE
CURRENTLY
OPEN
message will be displayed
if
an attempt is made
to access a
file
which is
in
use
by
another
task.
Find
out
what
task
is
locking
the
file
open,
and
stop
the
program. One way of finding out more
information about
this
problem is
to
enter
the
command OPEN [RETURN],
which will
list
all
programs and
data
files which
are
open
at
that
time.
Rev. A - 9-01-82
7100-0001
XB-13
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