New installation only shows blank page in browser

Hi there,

i am very new to openHAB, but wanted to give it a try. So i went, and installed it on Debian Jessie, following this tutorial via apt-get.
After the installation, i changed the default HTTP port to 9090, since there was another service listening on 8080. I also copied the files for the demo setup.
So i wanted to access the website now, and see how the demo setup looks like. Since i installed it on a server, i wanted to open the website on another computer in the same network. I entered in my browser and got a blank page. Nothing more, which is really frustrating. It made no difference when i added ?sitemap=demoto the URL.

I checked the output of netstat which shows that the only process on 9090 seems to be IPv6 only, but according to this, it should not be a problem.

I checked the log file of openHAB, and it seems that there is something which notices my request, but fails. I get this output in the log:

2016-02-04 10:58:39.410 [WARN ] [.eclipse.jetty.http.HttpParser] - Full SCEP@7e540172{l(/<->r(/,d=true,open=true,ishut=false,oshut=false,rb=false,wb=false,w=true,i=0r}-{AsyncHttpConnection@5b531f1e,g=HttpGenerator{s=0,h=-1,b=-1,c=-1},p=HttpParser{s=-1,l=5695,c=-3},r=0}
2016-02-04 10:58:39.922 [WARN ] [.eclipse.jetty.http.HttpParser] - Full SCEP@3d645427{l(/<->r(/,d=true,open=true,ishut=false,oshut=false,rb=false,wb=false,w=true,i=0r}-{AsyncHttpConnection@5731593d,g=HttpGenerator{s=0,h=-1,b=-1,c=-1},p=HttpParser{s=-1,l=5733,c=-3},r=0}

Each request the same two lines, only the timestamps change and the value after SCEP@.

So, i am kinda frustrated. I hoped openHAB would be some more user-friendly than FHEM, but it is yet to prove.
If someone could help me, i would be happy. Thank you.

Hooray! It is frustrating when new users follow some random tutorial out on the web somewhere and ends up with a mess.

Where did you copy them to?

When you start openhab, what does your log file look like while it is loading? Do you see it loading the items, rules, and sitemap?

Home automation is hard. I can’t say whether OH is more user friendly than FHEM as I’ve not used it, but HA is inherently complicated and I’ve seen two approaches. One approach is to dumb it down and make it less powerful and limit what the users can do. Another is expose the full range of possibilities in all of its complicated glory. A third is to cut a middle ground and hide some of the complexity but allow users to get to the complexity should they want it. OH 1 is closer to the second approach than the third approach but the focus of OH 2 is to get closer to the third approach. So this means that OH 1 is not very user-friendly yet but it is getting better.