$ sudo PYTHONPATH=src ./src/kimchid *** Running feature tests *** [21/May/2014:19:41:48] ENGINE Error in 'start' listener <bound method CapabilitiesModel._set_capabilities of <kimchi.model.config.CapabilitiesModel object at 0x314ac10>> Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/cherrypy/process/wspbus.py", line 197, in publish output.append(listener(*args, **kwargs)) File "/home/shhfeng/work/workdir/kimchi/src/kimchi/model/config.py", line 69, in _set_capabilities self.metadata_support = FeatureTests.has_metadata_support() File "/home/shhfeng/work/workdir/kimchi/src/kimchi/featuretests.py", line 197, in has_metadata_support conn = libvirt.open('qemu:///system') File "/usr/lib64/python2.7/site-packages/libvirt.py", line 247, in open if ret is None:raise libvirtError('virConnectOpen() failed') libvirtError: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Connection refused [21/May/2014:19:41:48] ENGINE Shutting down due to error in start listener: [21/May/2014:19:41:48] ENGINE Bus STOPPING [21/May/2014:19:41:48] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('127.0.0.1', 8010)) shut down [21/May/2014:19:41:48] ENGINE Stopped thread '_TimeoutMonitor'. [21/May/2014:19:41:48] ENGINE Stopped thread 'Autoreloader'. [21/May/2014:19:41:48] ENGINE Bus STOPPED [21/May/2014:19:41:48] ENGINE Bus EXITING [21/May/2014:19:41:48] ENGINE Bus EXITED I do not find the root reason. but after I use LibvirtConnection to open a libvirt connection, kimchi can start. +from kimchi.model.libvirtconnection import LibvirtConnection @@ -104,7 +105,7 @@ def libvirt_supports_iso_stream(protocol): - conn = libvirt.open('qemu:///system') + conn = LibvirtConnection('qemu:///system').get() -- Thanks and best regards! Sheldon Feng(???)&lt;shaohef(a)linux.vnet.ibm.com&gt; IBM Linux Technology Center