IBM 28L2234 manual 3-25, e config.sys and, typelastdrive=z

The computer does not recognize the CD-ReWritable drive after the device drivers are loaded (DOS and Windows 3.X).

Check

for

incompatibilities

among

the CD-RW drive device

driver

and

other

device drivers

or

other

hardware in your computer. Create a

System

Diskette

with

minimum

CONFIG.SYS

and

AUTOEXEC.BAT

system

files.

1.

Before

creating

special

CONFIG.SYS

and

AUTOEXEC.BAT

files,

make

a

backup

copy

of

these

files

in

a

preferred

directory.

Type

x:copy CONFIG.SYS CONFIG.IBM where x is the

directory

drive

letter

and

press

Enter.

Type

x:copy AUTOEXEC.BAT AUTOEXEC.IBM where x is the

directory

drive

letter

and

press

Enter.

2.

Create

a

System

Diskette

and

copy

the

device

drivers

onto

it

using

the

following

instructions.

a.

Insert

a

blank

diskette

into

the

diskette

drive.

b.

At

the

DOS

prompt,

type format a: /s

and

press

Enter.

The

/s

parameter

creates

the

System

Diskette.

Follow the

instructions

on

the

screen.

c. When the format process completes,

copy

the

C:\IBMIDECD.SYS

and

C:\MSCDEX files

from the

hard

disk

to

the

System

Diskette.

d.

Using

a

text

editor,

create

a

minimum

CONFIG.SYS

system

file

on

the

System

Diskette

to

support

only

a

CD-ReWritable

drive.		The	following procedure		uses the E		text	editor	to
create		the	CONFIG.SYS	file	from	the A	prompt.
1)	Type		e config.sys and			press	Enter.
2)	In	the	editor,	typelastdrive=z			and	press	Enter.

3)Type device=a:\ibmidecd.sys /d:ibmcd1 and press Enter.

4) Save the CONFIG.SYS file and exit from the editor.

e.

Using a

text

editor,

create

a minimum

AUTOEXEC.BAT

system

file

on

the

System Diskette

to

support

only

a

CD-ReWritable drive. The

following

procedure

uses

the

E

text

editor

to

create

the

AUTOEXEC.BAT

file

from

the

A

prompt.

1)

Type

e autoexec.bat

and

press

Enter.

2)

Type

a:\mscdex /d:ibmcd1

/m:1

and press Enter.

3)

Save

the

AUTOEXEC.BAT

file

and

exit

the

editor.

3. Turn

off

the

computer

and

check

that

the

System

Diskette

is in

the

diskette

drive.

4.Restart the computer (the computer will start up from the System Diskette).

5.Observe the startup messages and check that the device driver

IBMIDECD.SYS	loads.	When	MSCDEX	loads,	observe	the
drive letter	that	the	computer	assigns	to	the CD-ReWritable drive.

Part 3: Appendixes 3-25