I noticed that mediawiki has the MySQL root account name hardcoded in, even though many database installations use a different username as the administrator as a bit of added security, or for convenience, or whatever. I've created a simple patch that gives the installer an extra field for 'root username', defaulted to "root". It applies cleanly to versions >= 1.3.3

http://qartis.com/root_username.patch

- Andrew Fuller