Re: [libvirt-users] [libvirt] libvirtError: this function is not supported by the connection driver: virInterfaceDefineXML
On 12.03.2014 14:41, Sijo Jose wrote:
Hi,
Could anyone help I'm getting the following error when I tried to add a
new network interface.
DETAILS
Connection
---------------------------
import libvirt
conn = libvirt.open('qemu:///system')
Interface XML
----------------------
<interface type="bridge" name="br0">
<start mode="onboot"/>
<mtu size="1500"/>
<protocol family="ipv4">
<dhcp/>
</protocol>
<bridge stp="off" delay="0.01">
<interface type="ethernet" name="eth0">
<mac address="ab:bb:cc:dd:ee:ff"/>
</interface>
<interface type="ethernet" name="eth1"/>
</bridge>
</interface>
In [96]:
conn.interfaceDefineXML(interfacexml,0)
---------------------------------------------------------------------------
libvirtError Traceback (most recent call last)
/home/saju/<ipython-input-96-0536ffe3fa23> in<module>()
----> 1 conn.interfaceDefineXML(br1xml,0)
/usr/lib/python2.7/dist-packages/libvirt.pyc ininterfaceDefineXML(self, xml, flags)
2750 libvirtd. """
2751 ret= libvirtmod.virInterfaceDefineXML(self._o, xml, flags)
-> 2752 if retis None:raise libvirtError('virInterfaceDefineXML()
failed', conn=self)
2753 __tmp= virInterface(self, _obj=ret)
2754 return __tmp
libvirtError: this function is not supported by the connection driver:
virInterfaceDefineXML
That's because you've libvirt compiled with udev rather than netcf. The
netcf is the only one backend that knows how to create a new interface.
Install netcf and rebuild libvirt and you should be able to create
interfaces via libvirt.
Michal