Radio Shack TRS-80 Hardware Manual page 19

When
partitioning
a
hand
disk drive
into logical drives,
you must
assign
at
least
ono
read/write
head
to
each
logical drive,
and
you
cannot assign
parts
ol
heads. Otherwise, you can
assign the
heads
as you
like.
For example, vcu can assign
Heads
1
and
2
to
Laojcal
Drive
1,
and Heads 3 and 4
to
Logical Drive
2. In
this case, you
have
1
physical drive
and
2
logical drives.
Initialization
Procedure
Before
you
begin
the
initialization,
turn
off
your hard disk drives
and
locate the
serial
numbers on
the bottom
of the
drives.
Copy
these
numbers
down
exactly,
including
any
punctuation.
Ybu
will
need
the
numbers
during Step 4 below.
Now
make
a backup
of
the
Hard
Disk
Initialization
Diskette
and
store the
original
in
a
sale
place.
Use
only
the
bdtKup
during
Itie
initialization;
me
HARDGEN
program
modifies the
diskette,
and
using the
backup
ensures
(hat
you
still
have the mnster Insinua-
tion Diskette
intact-
[Refer
to
introduction
to
Your Disk
System
for
details
on
backing
up
diskettes.)
Note: Suggested responses
to
prompts
given by the
HARDGEN
program
are
listed
immediately
following the
initialization
procedure Vou
may
want
to
took
at
them
before
continuing.
1.
Insert the write-enabled
backup
Initialization
Diskette
into
Floppy
Dnve
0,
and
reset the system.
Mote: Model
4
users;
To
reeei the eysiem, press the
resei
switch.
Model 4P
users:
To
reset the
system
at
any
time you
have nard
disks connected, press
the reset switcn
and
F2
I
If
you are
prompted
to enter the date
and
time,
do
so.
The
HAUDGtN
program
starts
automatically.
2.
A
prompt appears, asking
If
yogr system
is
ready.
II
you have
properly connected
your hard disk system, as described
in
Chapter
2,
type
V
i£HH3).
If
not,
type
N EHEBEl
The
system
returns
to
TRSDOE Ready
go
that
you
can remou*
all
diskettes, turn
off
the
entire system,
and
connect the
drives
properly.
3.
HARDGEN
now
asks
tor
the
number
of
floppy
and
hard
drives
in
your system. Enter
thft
appmnriate numbers,
in
rasnnnSfi
Hint:
If
you
think
you mighl purchase more
floppy drives
in
Ihs
future,
you
can
enle-r
a
numb#r
greater than
the
number
of
drives
you
currently have connected This applies only
to
floppy
drives.
Ybu must
enter the exact
number
of
hard
disk
drives
you
have.
13