DOS Boot Disk Question - China DOS Union Forum - China DOS Union

I wrote a boot floppy myself. When booting from the floppy, everything is normal, but when I burn it into a bootable CD, a

problem comes up.

My boot floppy has an option: press any key to boot from my disk...

If booting from the CD, there is no problem. But if I don't press a key, that is, boot from the hard disk, the system gets an extra B:

drive, and the CD also cannot be read normally.

Because I executed the CD program, the bootable CD made a CD image for me, so the CD became A:, and the original A: became

B:. I used int 13,ah=4b to restore the disk image, but it still doesn't work. Why?

Has anyone made a bootable CD themselves? If so, we can exchange ideas. My email:[email protected]

Floor1　sczyyang	Posted 2003-10-31 00:00
初级用户　Posts 1　Credits 105
I wrote a boot floppy myself. When booting from the floppy, everything is normal, but when I burn it into a bootable CD, a problem comes up. My boot floppy has an option: press any key to boot from my disk... If booting from the CD, there is no problem. But if I don't press a key, that is, boot from the hard disk, the system gets an extra B: drive, and the CD also cannot be read normally. Because I executed the CD program, the bootable CD made a CD image for me, so the CD became A:, and the original A: became B:. I used int 13,ah=4b to restore the disk image, but it still doesn't work. Why? Has anyone made a bootable CD themselves? If so, we can exchange ideas. My email:[email protected]