Alright,
Thanks for the info. Here is how it begins:
I have come to share my knowledge pertaining DOS and USB devices. Many have their opinions, or have a few comments to send, but I am here to help you successfully boot to DOS while reading your External USB CD-Rom.
Before I move on, this has been tested on a HP Pavilion N5490 Laptop, and the 8-in-1 USB (ME-325X) CD Rom drive.
First things first, I would recommend a blank floppy. I will present the next and following steps:
- Format your floppy disk
- Put the Windows 98 boot disk files on there. You can find them here.
I used the Windows 98 OEM version just for the record.
- I will display the procedure on how to modify the file settings on your current floppy disk files
Step 1: Edit your Autoexec.bat file found on your floppy. Remove all the entries, and replace it with:
@ECHO OFF
PROMPT $p$g
LH MSCDEX.EXE /D:MSCD001 /D:USBCD001 /M:20
Save, and close that file. Move to your Config.sys file. Modify it to the following settings.
· After “[menu]� add the following line:
menuitem=USBCD, Start computer with (USB) CD-ROM support.
· Change the “menudefault� line to this:
· Next add this before the “[CD]� category:
[USBCD]
DEVICE=HIMEM.SYS /TESTMEM:OFF
DOS=HIGH,UMB
SWITCHES=/F
BREAK ON
SHELL=COMMAND.COM /P /E:1024
FILES=60
BUFFERS=30
STACKS=9,256
Lastdrive=Z
DEVICE=oakcdrom.sys /D:MSCD001
DEVICE=USBASPI.SYS /V /NORST
DEVICE=USBCD.SYS /D:USBCD001
DEVICE=DI1000DD.SYS
You are done, but you are probably wondering “where is USBCD.SYS, USBASPI.SYS, and DI1000DD.SYS?�. I have your answer…available! You can download the necessary files
here. You will probably find the new
Autoexec.bat and
Config.sys in there. If you are unsure how to modify them, just extract everything from that zip to your floppy drive. If not, just extract the .SYS files [excluding CONFIG.SYS].
That's it you're done! Just boot to your newly created floppy, and choose the first option. Make sure you have your USB device on, and plugged in. I do hope this works on your end, but if not, feel free to ask questions.
Here are some helpful links:
http://www.ugly.nl/html/usb___dos.html
http://www.theinquirer.net/?article=10215
Hope this helps,
-
Stack
Overflow