I installed Openhabian 1.4 on Ubuntu Server 16.04.3 and intially had the problem with Frontail service not working. Todays update fixed that, but I noticed one cosmetic error - launching Open Hab Log Viewer from the Dasboard fails as the URL is set to http://openhabiandevice:9001.
A quick edit to services/dashboard.cfg fixed it, but it would be nice to have a permanent fix.
In my case, I changed the hostname from the default openhabianpi to ohpi. The dashboard’s Log Viewer link is a hard-coded URL: http://openhabianpi:9001 so changing the Pi’s hostname breaks the URL.
Full path to the file containing the URL: /etc/openhab2/services/dashboard.cfg
Perhaps the URL in dashboard.cfg should rely on an environment variable like HOSTNAME?