I've installed ZCS 8.0.4 GA Release on UBUNTU 13.04. The installation went well untill I logged in to the admin panel. All services indicate off-line, but they apear running under the "zimbra" account with "zmcontrol status". However, I could send recieve emails and use the basic functions of a mail server so far (I didn't want to get in to complex configuration before I sort out existing issues). Having said, the major problems occurs when I have to restart zmcontrol every morning due to the service status "zmmailboxdctl is not running" which cripples my mail server.
I've surfed the net and your forum. There were all kinds of soultions focusing on different root-causes, but I could find any thing that fixed my problem.