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Re: KVM



On Mon, 2008-05-19 at 08:31 +0200, Goswin von Brederlow wrote:
> Ian Campbell <ijc@hellion.org.uk> writes:
> 
> > On Mon, 2008-05-19 at 06:46 +0200, Goswin von Brederlow wrote:
> >> Ian Campbell <ijc@hellion.org.uk> writes:
> >> 
> >> > On Sun, 2008-05-18 at 09:39 +0100, Daniel Pocock wrote:
> >> >
> >> >> b) The domU systems should be indistinguishable from normal systems - 
> >> >> using D-I is one way to ensure this.
> >> >
> >> > I'm afraid I don't have any helpful suggestions about your current
> >> > issues. However I am working on ensuring that Lenny D-I works out of the
> >> > box on Xen so things should get better with time.
> >> >
> >> > Ian.
> >> 
> >> Would it be also possible to provide kvm support? Specifically support
> >> for the virtio backend drivers that are way faster.
> >
> > Certainly it would be possible -- in fact it might already work, but I
> > suspect that a patch to partman is probably needed at a minimum.
> >
> > Ian.
> 
> When I tried it it couldn't find the disks. I assumed the kvm backend
> modules aren't included in the ramdisk or too old.
> 
> I guess I have to build my own D-I image with 2.6.25 and see if that
> already solves it.

I'd guess that it would.

> Concerning partman: Does it need patches to recognice /dev/vdX and
> /dev/vdXY? Doesn't is use /proc/partitions or /sys/block/?

The issue was in the translation of the devices into human readable
names. Bug was #464556 and thread is
http://lists.debian.org/debian-boot/2008/04/msg00166.html T

The final patch was
http://lists.debian.org/debian-boot/2008/04/msg00852.html

I believe you could reuse the templates (that was the intention) but
you'd need a small amount of code in partman-base/lib/base.sh

Ian.
-- 
Ian Campbell

Yow!  Am I in Milwaukee?

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