Though this should be turn-key, I am running into a problem here:
On a fresh Ubuntu, updated and upgraded, I fixed the hostname and ran the installer - and it seems to just end after the timezone config, hence no admin interface.
It responds with expected hostname, public and private IP’s before ending the script.
Where did the fresh ubuntu image come from? The images that some providers give you have been modified, notably by changing network and management stuff, in ways that clash with MIAB. Best to use a real ubuntu image from ubuntu.com