Radio Shack TRS-80 Owner's Manual page 86

"RS-80
MODEL
ill
DISK
SYSTEM
FORMAT
Prepare a
Data
Diskette
FORMAT
Ci
:d
specifies the disk drive which
contains the
diskette
to
be formatted.
If
d
is
omitted, trsdos
will
prompt
you
for this
information.
This
command
lets
you
prepare data
diskettes (either
new
or disks
which
contain
undesired data or programs), leaving
a
maximum
amount
of space
for
your
program and
data
files.
Note: Data
diskettes
may
only be used
in
Drives 1,2, and
3
except during
a
BACKUP
or
FORMAT.
format
takes a
blank
(new
or
magnetically
erased)
diskette,
records
track/sector
boundaries
on
it,
then
initializes
it
with
and
creates
a
directory.
When format
detects a
non-blank
diskette,
it
will display
a
warning message:
DISK
CONTAINS DATA
>
USE DISK
OR
NOT?
Type
Y
(Yes) and
press
(
ENTER)
if
you do want
to reformat, N
(No) and
press
(ENTER)
if
you want
to
save
the disk information.
format
will
lock out any
defective tracks
to
prevent
data
from
being
lost in
these areas.
If
you
begin
to
get
read
errors during
access,
reformat
the
disk.
Example
FORMAT
:
I
After
you
are
prompted
for
DISKETTE NAME?
and
MASTER PASSWORD?,
trsdos
will
format Drive
1
70