Re: Failure to boot CDROM with -drive arg

[Laurent Vivier <Laurent.Vivier@bull.net>]

Le mardi 08 juillet 2008 à 09:37 +0100, Daniel P. Berrange a écrit :
> The following two command lines should be identical from the user's
> point of view:
> 
> # qemu-kvm -cdrom /home/berrange/boot.iso -boot d -m 500
> 
> # qemu-kvm -drive file=/home/berrange/boot.iso,if=ide,media=cdrom,index=2,boot=on -m 500
> 

"-cdrom /home/berrange/boot.iso" is identical to
"-drive file=/home/berrange/boot.iso,index=1,media=cdrom"

with if=ide by default.

Could you try you command line without "boot=on" ?

> With the 2nd though, the initial CDROM syslinux loads, but fails to load
> the graphical menu, and also fails to boot in text mode fallback:
> 
>   'vesamenu.c32: attempted DOS system call"
> 
> (See screenshot: https://bugzilla.redhat.com/attachment.cgi?id=311221 )
> 
> I've reproduced this with both KVM 65 and 70, on a Fedora 9 host. The CDROM
> boot.iso image I'm using here is the Fedora 9  $URL/images/boot.iso from
> any standard Fedora install tree.
> 
> I can only imagine there's something different in the way extboot sets up
> the CPU/pagetables during cdrom boot, but its rather beyond my skills
> 
> This was originally reported by a Fedora user here
> 
>   https://bugzilla.redhat.com/show_bug.cgi?id=452355
> 
> Daniel
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