Re: [Xen-users] Device 0 (vif) could nto be connected: backend device not found

[Nivedita Singhvi <niv@xxxxxxxxxx>]

pak333@xxxxxxxxxxx wrote:
> Hi,
>
> I have seen many posts regarding this but have not found the soultion. So 
> please cna someone shed some light on this
> Thanks
> - padma
The usual reason is that the networking set up has failed
at some point and exited prematurely (e.g. from network-bridge
script).  Commonest problem is that brctl wasn't found,
but there are a few others.

Unfortunately, no logs go into xend-debug.log. This seems
to be something that changed a while ago (will look into it).

What usually happens is that things might appear to be
kosher when they are not, and you might then try to create
a guest under these circumstances, and run into a more
inexplicable and unhelpful error message.

Check /var/log/xen-hotplug.log for any more information.

Also, put an explicit:

set -e
exec 2>>/var/log/xend-debug.log

for instance, at the top of your network-bridge script.


> I get this error when I do try to create a domU guest (xen 3.0.0, 2.6.12.6).
> The vif is set to 
> vif = [ ' mac=aa:00:00:00:11, bridge=xenbr0' ]
>  and a "brctl show" shows
> xenbr0    8000,fefffffff  interfaces vif0.0 peth0
>
> Xend.log shows:
>  ERROR (SrvBase:87) Request wait_for_devices failed.  Traceback (most recent 
> call last):
>     File "/usr/lib/python/xen/web/SrvBase.py", line 85, in perform
>       return op_method(op, req)
>     File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 72, in 
> op_wait_for  _devices
>       return self.dom.waitForDevices()
>     File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 1343, in 
> waitForDevi  ces
>       self.waitForDevices_(c)
>     File "/usr/lib/python/xen/xend/XendDomainInfo.py", line 971, in 
> waitForDevic  es_
>       return self.getDeviceController(deviceClass).waitForDevices()
>     File "/usr/lib/python/xen/xend/server/DevController.py", line 135, in 
> waitFo  rDevices
>       return map(self.waitForDevice, self.deviceIDs())
>     File "/usr/lib/python/xen/xend/server/DevController.py", line 151, in 
> waitFo  rDevice
>       raise VmError("Device %s (%s) could not be connected. "
>   VmError: Device 0 (vif) could not be connected. Backend device not found.
>
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users