Drupal 8.x

I try to install D8 on ubuntu 14.04 (all default ubuntu packages). The whole install process works fine and the page comes up ... however, it is more or less unusable:

Hi all,

I need to create a portal web using a Content Management System (CMS), and in this way, Drupal (PHP) and Liferay (Java) are my best options, that's why I am here :). I have a vast experience in Java Web applications, however I have never worked with PHP.

Hello, I would like custom the default menu in Drupal 8.

hy there,
trying to install drupal 8 in a subdir

Can someone tell me the difference between user-profile.tpl.php and page--user--.tpl.php.

Hi,

I tried out D8 on my local machine and all went well without problems.

Now, since D8 beta is out, I would like to set-up a testsite on my production-environment.

Just after installing, I always get the following error while visiting the frontpage:

Page not found
The requested page "/" could not be found.

The database-tables are created, the DB-connection is ok.
The htaccess-file is located in te docroot.

PHP-version is 5.4

Are there any other things I have to check?
D7 Is working perfect on this environment.