[CentOS-virt] xenbr0 isn't created anymore

[Ross S. W. Walker]

Kai Schaetzl wrote:
> Ross S. W. Walker wrote on Mon, 31 Mar 2008 10:21:10 -0400:
> 
> > Why not try tcpdump on the bridge interface and see if you can
> > see the DHCPOFFER/DHCPACK and what MACs it used.
> 
> I hoped to avoid doing something I do only every few years ;-) I'm quite 
> familiar with using Wireshark/Etheral on Windows, but I used tcpdump only 
> once or so, ever. I remember I can use tcpdump logs with Wireshark, can't 
> I?

You can use the tcpdump logs in wireshark, or you can yum install
wireshark and use that interactively right on the bridge.

> Anyway, I just installed xen 3.2 and VMs are well. It didn't solve the 
> DHCP problem, so I will check tcpdump soon. But I found a problem with 
> python when I wanted to add a DomU to the xen managed domains. It seems 
> the xmlproc library is missing. I tried to install python-xml (as is 
> recommended for Debian) but there is none for CentOS. libxml2-python is 
> already installed and the only other module with xml in the name is 
> python-lxml which doesn't look like the one I need. Did you hit the same 
> problem?

Yes, the problem is actually in the Xen API for 3.2, they added an
option in the API, but didn't provide a default value if the client
doesn't provide one, so it bombs.

I have a fix for it. I could send the whole src.rpm, but it is too
much baggage for the list, so I have thrown in the 2 patches to
be put in the SOURCE directory and an updated xen.spec file.

Rebuild the packages, update them then virt-manager and virt-install
should work.

-Ross



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