I am trying to install oVirt with the hosted engine. The physical system is CentOS 6.5 x86_64 (with all current updates). It is connected to a two-switch stack via bond0 (running LACP), which is a VLAN trunk, and the management interface is vlan51. This doesn't work with oVirt 3.4.2, but I see that both 3.4.3 and 3.5 have "support engine on bond" and "support engine on vlan" in the release notes, so I tried again with today's 3.4.3 RC. I got a different error from "hosted-engine --deploy": [ ERROR ] Failed to execute stage 'Misc configuration': Command '/usr/bin/vdsClient' failed to execute I see this in /var/log/vdsm/supervdsm.log: ######################################################################## MainProcess|Thread-16::INFO::2014-07-10 10:20:23,003::configNetwork::275::root::(addNetwork) Adding network ovirtmgmt with vlan=51, bonding=None, nics=['bond0'], bondingOptions=None, mtu=None, bridged=True, defaultRoute=True,options={'bootproto': 'static', 'ONBOOT': 'yes'} MainProcess|Thread-16::ERROR::2014-07-10 10:20:23,003::supervdsmServer::100::SuperVdsm.ServerCallback::(wrapper) Error in addNetwork Traceback (most recent call last): File "/usr/share/vdsm/supervdsmServer", line 98, in wrapper res = func(*args, **kwargs) File "/usr/share/vdsm/supervdsmServer", line 190, in addNetwork return configNetwork.addNetwork(bridge, **options) File "/usr/share/vdsm/configNetwork.py", line 186, in wrapped return func(*args, **kwargs) File "/usr/share/vdsm/configNetwork.py", line 287, in addNetwork blockingdhcp=blockingdhcp, **options) File "/usr/share/vdsm/configNetwork.py", line 121, in objectivizeNetwork topNetDev = Nic(nic, configurator, mtu=mtu, _netinfo=_netinfo) File "/usr/share/vdsm/netmodels.py", line 80, in __init__ raise ConfigNetworkError(ne.ERR_BAD_NIC, 'unknown nic: %s' % name) ConfigNetworkError: (23, 'unknown nic: bond0') ######################################################################## Is there maybe still a problem combining a VLAN on a bond? A little background (if it helps): this is my first attempt with oVirt. I'm installing on a clean CentOS install on a spare box, with the intent to get oVirt up and running and then convert (one node at a time) an existing VM setup (running old stand-alone Xen installs) to oVirt. -- Chris Adams <cma(a)cmadams.net&gt;