Re: [Qemu-devel] Re: Boot Failure (CDROM boot failure code : 0004)

[Jens Axboe]

On Mon, Jun 16 2008, Volkan YAZICI wrote:
> On Mon, 16 Jun 2008, Laurent Vivier <address@hidden> writes:
> > could you burn a CD with your .iso and try to boot a real PC ?
> 
> I created the ISO image from the same CD that's inserted into the
> /dev/scd0 using below command:
> 
>   root:~# dd bs=$[1024 * 32] \
>   > if=/dev/scd0 \
>   > of=/root/windows-server-2003-standard-x86-64-sp2.iso
> 
> And I'm sure CD is bootable. (Not pirated, original.) OTOH, if we'd
> assume the ISO image is corrupted for some unknown reason, why "-cdrom
> /dev/scd0" didn't work?

You can't just do a dd and expect the output to be bootable, that wont
include the floppy boot image. So nothing wrong with qemu, that iso
would not be bootable if burned either.

-- 
Jens Axboe