Hi, I'm trying to add a add a new host, but each time the installation fails due to service supervdsm failing with: Aug 29 11:33:23 f25_55 daemonAdapter[1166]: Traceback (most recent call last): Aug 29 11:33:23 f25_55 daemonAdapter[1166]: File "/usr/lib64/python2.7/multiprocessing/util.py", line 274, in _run_finalizers Aug 29 11:33:23 f25_55 daemonAdapter[1166]: finalizer() Aug 29 11:33:23 f25_55 daemonAdapter[1166]: File "/usr/lib64/python2.7/multiprocessing/util.py", line 207, in __call__ Aug 29 11:33:23 f25_55 daemonAdapter[1166]: res = self._callback(*self._args, **self._kwargs) Aug 29 11:33:23 f25_55 daemonAdapter[1166]: OSError: [Errno 2] No such file or directory: '/var/run/vdsm/svdsm.sock' Aug 29 11:33:23 f25_55 systemd[1]: supervdsmd.service: Main process exited, code=exited, status=1/FAILURE Aug 29 11:33:23 f25_55 systemd[1]: supervdsmd.service: Unit entered failed state. I tried it on different freshly intalled f25 hosts. Tried installing vdsm from engine and manually, the problem occurs every time. Thanks, Marcin