Hello, I have updated one test environment to 4.2 (it was in 4.1.9) I have a guest in Oracle Linux 6 and epel 6 repo enabled. After powering down and start the VM, I saw the exclamation mark regarding ovirt-guest-agent latest version needed. On the VM the process was dead and I took the time of updatng it from ovirt-guest-agent-1.0.12-4.el6.noarch to ovirt-guest-agent-1.0.13-2.el6.noarch and start the agent. All seems ok; no exclamation mark now and I see the ip addresses of the guest in 4.2 web admin gui. But in log of ovirt-guest-agent I see: MainThread::ERROR::2018-05-28 14:34:55,711::ovirt-guest-agent::140::root::Unhandled exception in oVirt guest agent! Traceback (most recent call last): File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 134, in <module> agent.run(daemon, pidfile) File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 65, in run self.agent = LinuxVdsAgent(config) File "/usr/share/ovirt-guest-agent/GuestAgentLinux2.py", line 466, in __init__ AgentLogicBase.__init__(self, config) File "/usr/share/ovirt-guest-agent/OVirtAgentLogic.py", line 188, in __init__ self.vio = VirtIoChannel(config.get("virtio", "device")) File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 151, in __init__ self._stream = VirtIoStream(vport_name) File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 132, in __init__ self._vport = os.open(vport_name, os.O_RDWR) OSError: [Errno 2] No such file or directory: '/dev/virtio-ports/com.redhat.rhevm.vdsm' MainThread::INFO::2018-05-28 14:42:45,535::ovirt-guest-agent::59::root::Starting oVirt guest agent The status of files under the indicated directory is: # ll /dev/virtio-ports/ total 0 lrwxrwxrwx 1 root root 11 May 28 14:34 com.redhat.spice.0 -> ../vport0p3 lrwxrwxrwx 1 root root 11 May 28 14:34 org.qemu.guest_agent.0 -> ../vport0p2 lrwxrwxrwx 1 root root 11 May 28 14:42 ovirt-guest-agent.0 -> ../vport0p1 # Anything to be done at my side at guest/host configuration level? Thanks, Gianluca