This is an error from the VNC client, probably related to X forwarding.
Try setting the DISPLAY environment variable before running remote-viewer:
'export DISPLAY=0:0'

Or alternatively, you could setup port forwarding when connecting the the
host,
and then run the VNC client on your local machine:

ssh -L 5900:localhost:5900 [email protected]
remote-viewer vnc://localhost:5900


Andrej

On 1 June 2018 at 05:51, <[email protected]> wrote:

> > Hi,
> >
> > You could try accessing the engine VM using the VNC.
> > First, set the VNC password using 'hosted-engine --add-console-password',
> > and then connect to the host using a VNC viewer, for example:
> > 'remove-viewer vnc://HOST_IP:5900'
> >
> > The liveliness check just checks if the web UI is running and reachable.
> > If the VNC works, try checking if the 'ovirt-engine' service is running
> on
> > the VM and that the network is configured properly.
> >
> >
> > Andrej
> >
> > On 30 May 2018 at 18:31, <clam2718(a)gmail.com&gt; wrote:
> Thank you very much Andrej.  When I do as you suggest I am still unable to
> console in - I receive "Gtk-WARNING **: cannot open display:"
>
> Any other ideas?
>
> Thanks,
> Charles
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