need to have Apache, mysql, and php
#install php and mysql through yum
yum install httpd php php-mysql php-gd mysql-server mysql

#get the mediawiki download
cd /tools

#install mediawiki
tar xvzf mediawiki-1.17.0.tar.gz
ln -s mediawiki-1.17.0/ mediawiki

#Put in a virtual host: for our environment
    DocumentRoot /share/hypha/www-data_wiki/html

    DirectoryIndex index.html index.html.var index.shtml index.php

    <Directory /share/hypha/www-data_wiki/html>
        Options FollowSymLinks Includes Multiviews
        AllowOverride Limit AuthConfig Options
        AddOutputFilter Includes .shtml
        AddType text/html .shtml
        AddHandler server-parsed .shtml
        Order Allow,Deny
        Allow from all

    ScriptAlias /cgi-bin/ /share/hypha/www-data_wiki/cgi-bin/

    <Directory /share/hypha/www-data_wiki/cgi-bin>
        Options None
        AllowOverride None
        Order Allow,Deny
        Allow from all

    Alias /icons/ /share/hypha/www-data_wiki/icons/

    CustomLog /share/hypha/www-data_wiki/logs/access_log.hypha combined
    ErrorLog /share/hypha/www-data_wiki/logs/error_log.hypha

    Alias /error/ /share/hypha/www-data_wiki/error/

    <Directory /share/hypha/www-data_wiki/error>
        Options IncludesNoExec
        AllowOverride None
        AddOutputFilter Includes html
        AddHandler type-map var
        Order Allow,Deny
        Allow from all
        LanguagePriority en es de fr
        ForceLanguagePriority Prefer Fallback


#must add the following into the config or it won't see Virtual hosts:

#need to add the PHP module
LoadModule php5_module        modules/
#this is also in the /usr/local/etc/httpd/conf.d/php.conf

#add the handler type for php
AddType application/x-httpd-php .php .phtml
Database type: MySQL 
Database host: localhost:/db0/mysql/admin/wiki/mysql.sock 
Database name: staff 
DB username: cgdadmin 
DB password: xxxxx
Database table prefix:  (can be used for more than one wiki)
Database charset: Backwards-compatible UTF-8 
Superuser account: root 
Superuser password: xxxxxx

Then it asks for a wiki name, like cgdstaffwiki or the like
Also need an account, root and passwd, with email sysadmin and 
it will ask for account creation or not
leave default no license button

then it will build and download a new LocalSettings.php for the server, copy that
into the /share/hypha/www-data-wiki/html area.
then click on the wiki link provided in the configurationpage.
And voila! it should come up.