Re: [Xen-users] xen + centos + areca raid issues

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

On Tue, Oct 16, 2007 at 08:42:50PM +0100, Mark Williamson wrote:
> Hi there,
> 
> > I am trying to run a new server with centos + xen using centos xen
> > packages.
> 
> OK.  From what you've said I guess this is CentOS 5.0, so it's come with Xen 
> support, libvirt, virt-manager, etc.
> 
> > After installation, we had to install a hardware raid card (areca) on the
> > machine, and thus reload the os. It so happens the drivers shipped aren't
> > compatible with xen kernel, so i was forced to compile xen from source to
> > compile areca drivers.
> >
> > Now with system running under compiled xen, i cannot boot my old domU image
> >
> > :(
> >
> > Here is the error i get
> >
> > xm create aaa
> > Using config file "./aaa".
> > Error: (22, 'Invalid argument')
> 
> Hmmm, not a very helpful error message!  The contents of 
> /var/log/xen/xend.log 
> may yield more helpful hints.

Yep, Xen 3.0.3 wasn't great at reporting errors. This one basically means
you used a bogus guest kernel - eg

  - A non-PAE 32-bit kernel
  - A bare metal kernel  in a paravirt config
  - Wrong architecture kernel  (eg 32 on 64, or 64 on 32)

Dan
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