I'm trying to upgrade from 2.2.10 to 2.5. I do all my bcackups, move my program files, and copy the new program files into their place. When I try to access the site, I get an 'error reading from database'.
Have restored to 2.2.10 and tried the upgrade several times, always with the same result.
Yes, I copied the original config.php back into the moodle folder..