Re: [Qemu-devel] Why is SeaBIOS used with -kernel?

[Richard W.M. Jones]

On Fri, Apr 01, 2016 at 10:03:10AM +0200, Paolo Bonzini wrote:
> 
> 
> On 01/04/2016 09:55, Richard W.M. Jones wrote:
> >>> > > I'd dearly love to get rid of the sgabios option ROM.  It looks like
> >>> > > SeaBIOS nearly supports a full serial console now?
> >> > 
> >> > Last I checked, one could disable the option rom by adding "-device
> >> > VGA,romfile=" to the qemu command line.
> > Sure, I can easily remove sgabios.  The problem is I still want my
> > serial console to show BIOS messages!
> 
> What do you need it for?

It's so we can handle error reports.  When someone reports that
libguestfs "hangs", it's sometimes useful to know if the BIOS was
entered or not, since it points the finger at either qemu, BIOS or
kernel.  (Remember we have to be able to run on a whole variety of
Linux distros which often have old/broken/random qemu/bios/kernel).

Rich.

-- 
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