@teitbite,
here is my Support for you and other User with the same Problem.
Basic: we will run the QS on a PHP5.5 Server !!!"It is not possible to install the 3.3 and the 2.5 QS directly over the QS installation routine."
My Workflow:Install the Joomla 2.5QS on our second PHP 5.3 Server ( Or do it on a local mashine)
Install Languages and more
Install Akkeba BAckup on the Domain (or local)
Make a Akeeba complete Backup
Transfer the Backup File to Local ( if the file is on a external webserver)
Build on the Server with PHP5.5 a new Domain and a fresh Database and FTP User
Transfer the Akkeba Backup File into the Domain Folder
Transfer the Akeeba Kickstart (Download over Akeeba Page) into the same Folder
Run Kickstart.php (
http://yourservername.xxx/kickstart.phpfollow the instructions
After the Process you have installed the Joomla 2.5QS on the php5.5 Server
and you can work !!!
Update the 2.5 joomla to Joomla 3.3 over the Update Process and all is Running very well.
Enjoy
Michael
Serverconfiguration*******
Dantenbankversion 5.1.73
Datenbankzeichensatz utf8_general_ci
PHP-Version 5.5.12
Webserver Apache
PHP-Interface für den Webserver cgi-fcgi
Joomla!-Version Joomla! 2.5.27 Stable [ Ember ] 30-September-2014 14:00 GMT
Joomla!-Plattform-Version Joomla Platform 11.4.0 Stable [ Brian Kernighan ] 03-Jan-2012 00:00 GMT