Re: [Xen-devel] XP: VBD could not connect to backend device:USB boot

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> When I changed from hda1.. I see 768 VBD error.
>
> May be that's what I had before.

Yes, I wondered if it might be.  OK then, can you post the log output etc from 
trying to start the domain with this configuration?

Cheers,
Mark

> Thanks.
>
> -Kaushik
>
> -----Original Message-----
> From: Kaushik Barde
> Sent: Sunday, March 11, 2007 10:04 PM
> To: 'Mark Williamson'
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Petersson, Mats
> Subject: RE: [Xen-devel] XP: VBD could not connect to backend device:USB
> boot
>
> Whew... I'll try this one..
>
> Regarding 768,
>
> I had an incorrect disk='...' entry.
>
> Other small behavioral change is that now an "Untitled" window shows up
> and then I see above mentioned error..
>
>
> I will try this suggestion.
>
> Thanks..
>
> -Kaushik
>
> -----Original Message-----
> From: M.A. Williamson [mailto:maw48@xxxxxxxxxxxxxxxx] On Behalf Of Mark
> Williamson
> Sent: Sunday, March 11, 2007 10:02 PM
> To: Kaushik Barde
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Petersson, Mats
> Subject: Re: [Xen-devel] XP: VBD could not connect to backend device:USB
> boot
>
> Just noticed something:
>
> disk =
> ['file:/root/xenimages/hd.img,ioemu:hda1,w',
> 'file:/root/xenimages/XP.iso,hde:cdrom,r']
>
> You can't export devices as partitions for HVM guests; you need to
> change the
> hda1 to an hda...
>
> Have you tried that?
>
> Cheers,
> Mark
>
> On Monday 12 March 2007 03:51, Kaushik Barde wrote:
> > Thanks guys.
> >
> > But no luck. I did try removing both 'ioemu' and '
> >
> > Error: Device (769) could not be connected. Backend devices not found.
> >
> > Still is the problem.
> >
> > I have attached Xen start-up log, xm file along with this email...
> >
> > My kernel is 2.6.16-33, Xen-3.0.3/3.0.4.. If that helps..
> >
> > Note, I am booting from a USB/LILO combo and not from the hard-disk...
> >
> > I do have enough loop devices, compiled into the kernel..
> >
> > -Kaushik
> >
> >
> >
> > -----Original Message-----
> > From: M.A. Williamson [mailto:maw48@xxxxxxxxxxxxxxxx] On Behalf Of
>
> Mark
>
> > Williamson
> > Sent: Saturday, March 10, 2007 12:54 PM
> > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > Cc: Kaushik Barde; Petersson, Mats
> > Subject: Re: [Xen-devel] XP: VBD could not connect to backend
>
> device:USB
>
> > boot
> >
> > Well, as Mats said, it would seem that some fundamental setup is
> > breaking
> > somewhere.  Gosh, that does sound a bit vague of me, sorry!
> >
> > I take it you've checked the disk images (e.g. /root/xenimages/hd.img)
> > are
> > mounted at the correct positions.  You don't need the ioemu: syntax
> > anymore,
> > so try removing that.
> >
> > Finally, you could try removing the CDROM argument to simplify the
> > setup,
> > although this shouldn't make a difference! (I don't believe the
>
> problem
>
> > is
> > with the CD-ROM itself - the error suggests hda can't connect).
> >
> > I'm sorry I don't have anything more specific to suggest right now -
>
> but
>
> > it
> > looks like it ought to be fixable, anyhow.  Hopefully we can figure it
> > out
> > together.
> >
> > Cheers,
> > mark
> >
> > On Friday 09 March 2007 17:16, Kaushik Barde wrote:
> > > Thanks Mats,
> > >
> > > We also tried looking at xm logs but could not see anything obvious.
> > >
> > > Attached are our hvm files..
> > >
> > > Please advise..
> > >
> > > Best.
> > >
> > > -Kaushik
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Petersson, Mats [mailto:Mats.Petersson@xxxxxxx]
> > > Sent: Friday, March 09, 2007 8:53 AM
> > > To: Kaushik Barde; xen-devel@xxxxxxxxxxxxxxxxxxx
> > > Subject: RE: [Xen-devel] XP: VBD could not connect to backend
> >
> > device:USB
> >
> > > boot
> > >
> > > > -----Original Message-----
> > > > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> > > > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> > > > Kaushik Barde
> > > > Sent: 09 March 2007 16:48
> > > > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > > > Subject: [Xen-devel] XP: VBD could not connect to backend
> > > > device: USB boot
> > > >
> > > > Hi:
> > > >
> > > > we have following setup:
> > > >
> > > > 1. 2.6.16-33-based Xen 3.0.3/Xen-3.0.4 DOM-0 kernels.
> > > > 2. Using LILO-mbootpack from USB we boot Xen-->DOM-0 setup
> > > > 3. We mount harddisk and try to install xp.hvm
> > > >
> > > > While,we are successful with FCs as DOM-U, for XP we get, VBD
> > > > (768) could not be connected.
> > >
> > > But there's obviously something else wrong, as the conection of the
> >
> > VBD
> >
> > > happens LONG before the OS is loaded, so the fact that you're using
>
> XP
>
> > > doesn't make any difference at all.
> > >
> > > Can you post a configuration file for the XP domain (strip comments
> >
> > and
> >
> > > empty lines please).
> > >
> > > --
> > > Mats

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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