From: "jdd" jdd@dodin.org
I need to make update from 1.5.1 (or 2, I don't remember) to the last one. anyway this happen at any new version.
what will I have to do to really don't have to reconfigure all?
is it enough to just save LocalSettings.php and replace all the others things?
if I copy back LocalSettings.php, can I delete the config folder and go on? or may I first configure then copy LocalSettings.php?
Assuming you have a backup of your database and you've put the new software in place:
1. Make a copy of your current LocalSettings.php, then rename it to LocalSettingshold.php 2. Chmod 777 your config folder 3. Visit site to run the setup--for example www.yoursite.com/config and answer the questions. 4. Move the newly created config/LocalSettings.php file into your main wiki folder 5. Chmod 600 your config folder 6. If necessary put any custom settings back into the new LocalSettings.php
http://meta.wikimedia.org/wiki/Help:Installation is a rich resource for this process.
Good Luck
Michael E. Hancock