So you think that the php and mysql upgrade won't damage the sites that stays with moodle version 2.5 or 2.4?
This is the server info:
Linux version 2.6.32-279.2.1.el6.i686 (email@example.com)
(gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Thu Jul 19 23:10:02 UTC 2012
how can is help me?