Tried install on a new system, figured out Grafana issue, try this:
chmod u+x /opt/openHistorian/Grafana/bin/grafana
chmod u+x /opt/openHistorian/Grafana/bin/grafana-server
Then restart Grafana instance from an openHistorian console, e.g.:
init 3
If needed, you can browse to this URL to force initial user synchronization:
http://localhost:8180/grafana/syncusers
Try accessing the sample dashboard:
http://localhost:8180/grafana/d/000000002/system-status?orgId=1&refresh=5s