Re: Fwd: [PATCH] boot a linux kernel from non-ide device

[Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>]

This patch seems reasonable to me.

But FWIW, with extboot, it's possible to implement the -kernel option in 
a saner way.  extboot already has code to take over int19 and load a 
kernel from memory on boot.  It was based on the old -kernel support in 
QEMU (prior to hpa's rewrite) so it's not enabled at the moment.  It 
should be pretty easy to update it though.

This approach would allow -kernel to be used without any disk (which 
also solves your problem, but in a different way).  We can also 
eliminate all the boot sector hijacking silliness.

Regards,

Anthony Liguori

Glauber de Oliveira Costa wrote:
> Reposting to kvm-devel, since aliguori notices that I'm relying on
> non-upstream features of qemu
>
> ---------- Forwarded message ----------
> From: Glauber de Oliveira Costa <glommer-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Date: Feb 8, 2008 5:05 AM
> Subject: [PATCH] boot a linux kernel from non-ide device
> To: qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org
>
>
> Since it's now possible to use the -drive option, the test for something
> in the index 0 of the IDE bus is too restrictive.
>
> A better idea, IMHO, is to check if the user specified any bootable device,
> and only if not, fallback to the default, compatible behaviour of checking
> hda regardless of the presence of a boot=on arg.
>
> --
> Glauber de Oliveira Costa.
> "Free as in Freedom"
> http://glommer.net
>
> "The less confident you are, the more serious you have to act."
>
>
>
>   


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/