Re: [Xen-devel] Re: 2.6.37 PV on HVM issues

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Mon, 10 Jan 2011, Stefano Stabellini wrote:
> On Mon, 10 Jan 2011, Ian Campbell wrote:
> > On Mon, 2011-01-10 at 12:10 +0000, Stefano Stabellini wrote:
> > > It looks like another block driver has already registered the same major
> > > number 202 but unfortunately the error message in register_blkdev
> > > doesn't tell you who is it.
> > 
> > If you can get to a command prompt somehow (even the rescue shell in the
> > initrd) then /proc/devices will tell you who has registered it.
> 
> I looked into this issue and it turns out that the problem is completely
> different from what I originally guessed.
> I think Ubuntu builds platform-pci as a module by default and
> mkinitramfs doesn't include it in the initrd but it is required by
> blkfront and netfront.
> 
> Could you please rebuild your initramfs making sure that platform-pci is
> included (add platform-pci to /etc/initramfs-tools/modules) and try
> again?
> 

I finally got a Natty VM setup and running: it really seems that adding
platform_pci to /etc/initramfs-tools/modules and rebuilding the
initramfs is enough to solve the problem.

Could somebody be kind enough to fill the bug on launchpad?

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