Re: [Xen-users] qemu

[Ryan Worsley <R.C.Worsley@xxxxxxxxxxxx>]

Hi Jiri!

I do have the module loaded and I have a node /dev/net/tun so that side 
of things seems to be ok.  If I manually try and create a tap adapter 
with ifconfig tap0 0.0.0.0 up then I still don't get a tap device, I 
have to use tunctl to create a tap device before I can do this.  So my 
thinking was, manually create a tap device with tunctl then start my 
guest VM.  However what happens is the guest attempts to create a tap 
device with a number 1 higher than the one I've created, it doesn't 
matter how many I try and make I get the same problem!!!!!  Frustrating yes?
Ryan.

Jiri Denemark wrote:
> Hi.
>
>   
> > vif = [ ' ' ] and what I should have is vif = [ 'type=ioemu' ]  -  
> > However, if I have this configuration the virtual machine doesn't start, 
> >     
> Well, I have
>
>     vif = [ 'type=ioemu, bridge=xenbr0' ]
>
> which is the default taken from xmexample.hvm and everything works as
> expected.
>
>   
> > looking in the most recent qemu log reveals that the TAP device could 
> > not be created, I have TUN/TAP installed as a kernel module
> >     
> Hmm, do you have that module loaded into the kernel (lsmod)? If not, try to
> insert it manually using modprobe. Perhaps, just autoloading doesn't work for
> this module. I don't have TUN/TAP as a module as I had to load it manually for
> OpenVPN...
>
> Jirka
>
>   

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