I have an old MS-DOS computer that I am experimenting with. The computer has an AMD 80386 processor, 1664 KB of RAM, a 50 MB hard drive, and two floppy disk drives: one 3 1/2 inch, the other 5 1/4 inch.
I am in the process of installing a C++ compiler on this computer (see Install C++ compiler on old MS-DOS computer with floppies for more details). In order to facilitate that installation, I am attempting to install a CD-ROM drive. The drive is a Top Glory Electronics BCD G621D. I have found the correct driver (http://www.driverguide.com/driver/detail.php?driverid=349099) and have followed the instructions in the manual (included in the driver download) to connect the drive to the system and install the software.
Currently the CD-ROM drive is hooked up as a slave drive to the HD, and the jumper is set accordingly. The drive is being powered correctly; it opens and closes as it should.
The driver is installed in D:\CDROM\, while the MS-DOS system files are located in the C: drive. I have added the following lines to the CONFIG.SYS and AUTOEXEC.BAT files, respectively:
DEVICE=D:\CDROM\CDROM.SYS /D:MSCD001 /V
C:\DRDOS\MSCDEX.EXE /D:MSCD001 /L:F
The former loads the driver into memory, and the latter configures the MSCDEX.EXE program to interact with the driver, thus allowing the user (me) to access the CD-ROM drive.
However, a problem has occurred. After installing the driver and restarting the system, one of two things happen: 1. Information about the driver is displayed. 2. An unusually large cursor flashes on-screen.
The information mentioned in item 1 is shown here:
ATAPI IDE CD-ROM Device Driver Release DATE : 04/19/1999 TIME : 09:00:00 Example : DEVICE=CDROM_DRV.SYS /D:MSCD001 [/DMA] /DMA --> Enable PCI Bus Master DMA Mode /UDMA --> Enable PCI Bus Master Ultra DMA Mode Sound Card IDE Port 168 --> IRQ 10 Sound Card IDE Port 1E8 --> IRQ 11 Driver Version : 2.9 Device Name : MSCD001 Drive 0: Port= 1F0 (Primary Channel), Slave IRQ= 14 Firmware Version : M1.30 Transfer Mode : Programmed I/O mode4
In both cases, the DOS prompt never appears, and the system does not accept commands. Thus, the computer is rendered useless.
The problem appears to be caused by the line in CONFIG.SYS. When I boot MS-DOS from a floppy disk rather than the HD and remove that line from the file, the computer works just fine when I reboot from the HD. (Of course, MSCDEX.EXE cannot access the device, as the driver is not loaded).
This leads me to believe that I have the drive and its driver set up correctly. However, that does not help me considering that I am unable to do anything with the computer once the driver loads. Does anybody know how I would be able to gain access to the MS-DOS prompt and use the computer while the driver is loaded?
Thanks in advanced for your help.