Hi all, I am trying to create a bootable CD and boot it using a USB CD-ROM drive. I an using a Supermicro motherboard P4SCT+II that support boot from USB CD-ROM in it's BIOS. I am using a Win-98 boot and my config.sys and Autoexec.bat files are as follow: config.sys: DEVICE=A:\ANSI.SYS DEVICE = usb\aspiuhci.sys /int /all DEVICE = usb\aspiuhci.sys /int /all /D1 DEVICE = cdrom\btcdrom.sys /D:cd2 LASTDRIVE = Z autoexec.bat: @echo off SET TZ=GHO-02:00 GUEST.EXE CDROM\MSCDEX.exe /D:cd1 /D:cd2 /D:cd3 MOUSE.COM :start cls echo. echo CD#1 Startup Menu echo ================= echo. @echo  ************************************************  @echo  *  Choose the Restore option to avoid having  *  @echo  *  to reactivate the operating system.  *  @echo  ************************************************  echo. echo 1) Creo Software Complete Overwrite Installation echo 2) Creo Software Preservation Installation (System Partition Overwrite) echo 3) Backup Creo System Partition echo 4) Restore Creo System Partition echo 5) DOS Prompt echo. echo. choice /c:12345 /n Enter a choice: if errorlevel 5 goto end if errorlevel 4 goto Restore if errorlevel 3 goto backup if errorlevel 2 goto instpar if errorlevel 1 goto instow :instow echo Are you sure ? [Y/N] A:getkey.exe if errorlevel==1 goto Yes cls goto start :Yes echo Executing Complete Overwrite... a:instow.bat goto Dos :instpar echo Are you sure ? [Y/N] A:getkey.exe if errorlevel==1 goto Yes1 cls goto start :Yes1 echo Executing Preservation Installation... instpr.bat goto Dos :backup cls echo Performing Backup... Backup.bat goto Dos :Restore echo Are you sure ? [Y/N] A:getkey.exe if errorlevel==1 goto Yes3 cls goto start :Yes3 echo Performing Restore... Restore.bat goto Dos goto start :end echo Are you sure ? [Y/N] A:getkey.exe if errorlevel==1 goto Yes4 cls goto start :Yes4 When I boot from a Floppy and then run files from the USB CD-ROM everything is working fine but when I burn (using Nero) a bootable CD the CD starts to boot, the USB CD-ROM driver is loaded and the CD-ROM is identified but then I get the following errors: The following file is missing or corrupted USB\ASPIUHCI.SYS Ther is an error in your CONFIG.SYS file on line 3 The following file is missing or corrupted CDROM\BTCDROM.SYS Ther is an error in your CONFIG.SYS file on line 4 The following file is missing or corrupted COMMAND.COM Type the name of the command Interpreter (e.g., C:\WINDOWS\COMMAND.COM) A> [COLOR=blue] Please help I looked all over the Internet for solution but no luck. Thanks very much.

I don't know what the entire problem is but: DEVICE = usb\aspiuhci.sys /int /all DEVICE = usb\aspiuhci.sys /int /all /D1 DEVICE = cdrom\btcdrom.sys /D:cd2 Those are not valid paths. A valid path looks like: A:\USB\aspiuhci.sys Another not valid path: CDROM\MSCDEX.exe /D:cd1 /D:cd2 /D:cd3 It looks for file: CDROM\MSCDEX.exe but can't ever find because \ is not allowed in filename. Also you spec 3 drives but only put one driver in config.sys, why? Unless FreeDOS works differently than MS DOS. Best

How can it load the USB drivers if it cannot find them? I think you mean it loads the CD boot code. How are you producing the bootable CDROM? If using floppy mode emulation, you need to have all your files on the floppy b4 Nero creates a boot image from it. command.com, config.sys, autoexec.bat, cd dos drivers, etc. Rule #1: Good Computers don't go down. Rule #2: There is no such thing as a good computer.

http://www.computing.net/dos/wwwboard/forum/13679.html http://www.computing.net/dos/wwwboard/forum/13845.html http://www.computing.net/dos/wwwboard/forum/15165.html Also see here: http://web.archive.org/web/20041013075606/http://newdos.yginfo.net/usbdos.htm and here: http://web.archive.org/web/*sr_1nr_30/http://newdos.yginfo.net/dosware/usb/*

hey i think i have the same problem although i have no clue what you said. When i place in a cd a gaming cd like warcraft3 my computer restarts and it keeps restarting after if i dont take it out can you gusy help me plz!