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

["Kaushik Barde" <Kaushik_Barde@xxxxxxxxxxx>]

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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