Thread:Project:Support desk/Why does new MediaWiki installation stop?

I am trying to install a new MediaWiki installation. I can reach the index.php page and get the following page:

'''MediaWiki 1.21.1

LocalSettings.php not found.

Please set up the wiki first.

'Italic text''When I click on the Please set up the wiki first. hyperlink,

This is the URL, which is correct.

http://appcentral:8587/mw-config/index.php

The page stays blank, and nothing happens. What should I check to see what is going wrong. This is a fresh, clean installation. There is no existing MySQL DB for the wiki.

Here are my versions:

Server version: Apache/2.2.15 (Unix) Server built:  May 13 2013 22:11:16 PHP 5.3.3 (cli) (built: Feb 22 2013 02:51:11) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies MediaWiki 1.21.1

`mysql Ver 14.14 Distrib 5.1.69, for redhat-linux-gnu (x86_64) using readline 5.1`