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Re: [Xen-users] Re: Raw Disk Image to domU

  • To: "Ricardo Tiago" <rtiago@xxxxxxxxx>
  • From: "Todd Deshane" <deshantm@xxxxxxxxx>
  • Date: Tue, 27 May 2008 10:25:30 -0400
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 27 May 2008 07:26:00 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi Ricardo,

> One thing that i don't understand is the difference of sda, xvda and when to
> use one or the other in the cfg.

This is starting to blur more and more. As I originally understood it,
sd* was for
SCSI and xvd* was for Xen block device. This would allow the guest to be given
a SCSI device and the the driver would be the standard SCSI driver when passed
sda and the xen blk driver when passed a xvd* device.

For the most part this is true in general, but for PV guests it seems that Xen
does a good job of using possibly the same driver (I am not actually 100%
sure of the current status). I think that specifying sd*, hd*, xvd* is
more important
for HVM guests, since these guests need to provide the drivers in way or another

I would love if others could explain this with more authority and more

> didn't previously noted but while the image boots fine, that are still some 
> errors..

> XENBUS: Device with no driver: device/vbd/51712
> XENBUS: Device with no driver: device/vif/0

Did you have problems with anything not working?

Does the disk and network work?

I have noticed errors similar to this, especial for the console, and the console
still works.


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