CD-ROM not booting

no_one · Post by **no_one** » Tue Aug 07, 2007 1:15 pm

Ok, I made a disk image containing only one file: Boot.bin. Boot.asm looks like this:

org		0x7C00
bits	16
_start:
	cli
	hlt
	times	510 - ($-$$) db 0
	dw		0xAA55

I burnt the disk image to a CD and made a virtual machine in Qemu. I inserted the CD, ran the VM and it couldn't boot. It says the same thing it says when you try to boot with nothing in the drive. Is it the bootloader that's wrong?

sancho1980 · Post by **sancho1980** » Tue Aug 07, 2007 1:24 pm

try calling an interrupt that prints something to the screen!

edit: i dont think your little piece of code is wrong, but try with a floppy image first. i think booting from cd is still a bit different...

Brynet-Inc · Post by **Brynet-Inc** » Tue Aug 07, 2007 1:30 pm

Please read the following....

http://en.wikipedia.org/wiki/El_Torito_ ... tandard%29

(After reading, be sure to check out the stuff in the "External Links" section )

Using a floppy disk/image for initial testing is "highly" recommended..

kataklinger · Post by **kataklinger** » Fri Aug 10, 2007 4:37 am

You can use floppy disk image to boot from CD-ROM. But it is not enough to burn boot.bin, you have to make full floppy disk image, and then you need to tell to your burning software that you want bootable cd with floppy disk emulation. AFAIK Nero doesn't have that option, Magic ISO has it.