Thread:Project:Support desk/How do I start the Wiki?/reply (17)

If you haven't created the database and user for the wiki yet, the first database username and password that prompts you the web installer is for a user with rights to create a database and a user for the wiki database, normally the root user. You should know that account name or password at this point, or else you should contact your system administrator.

Once provided, next step allows you to specify a new username and password that will be used for connecting to the database from MediaWiki, which needs only privileges to work with the new database. You can choose the username and password you want. Note that this won't be a user of the wiki, just the credentials used by the MediaWiki software to connect to the database server.