Host update fail

[HristoA]

What happened:
Hos upgrade pod return error:
Unable to mount volumes for pod "host-upgrades-nvv5n_kube-system(73c4457b-cf0d-11e9-9551-9600002dc9d7)": timeout expired waiting for volumes to attach or mount for pod "kube-system"/"host-upgrades-nvv5n". list of unmounted volumes=[dbus]. list of unattached volumes=[config host dbus host-upgrades-token-cg8bw]

MountVolume.SetUp failed for volume "dbus" : hostPath type check failed: /var/run/dbus is not a directory

What you expected to happen:
Successfully update host and restart it if need
How to reproduce it (as minimally and precisely as possible):
Just install Pharos on clean VPSs
Anything else we need to know?:

• /var/run/dbus/ just not exists
• Related topic: http://lists.busybox.net/pipermail/buildroot/2018-February/214129.html

Environment:

• Pharos version (use pharos --version): 2.4.6
• Cloud provider or hardware configuration: Cloud provider of VPSs
• OS (e.g. from /etc/os-release; both for the client and for the used nodes):
  Ubuntu 18.04
  4.15.0-55-generic