Although you may install MediaWiki via the Softaculous auto installer, you may want to have it installed manually. This is why we have created this step-by-step tutorial.
STEP 1Database Setup
STEP 2Upload Files
Now you should open the folder where you extracted the files with your favorite browser. If you have extracted the files in a folder called wiki, then you should go to www.yourdomain.com/wiki. There you will be asked to set up your MediaWiki.
When you click on the set up the wiki link, you will be redirected to the installation page. First you will have to select a language to use for the MediaWiki installation and for the wiki itself.
Click Continue to proceed to the next page. Here some environmental checks will be done. MediaWiki can be installed without any problems on all SiteGround servers. You may see some warnings, but since they will not affect the installation, you can disregard them.
Press the Continue button to go to the next step of the installation process. On this page you will have to configure the database settings with the user and database you created in the beginning.
Select MySQL for Database type (PostgreSQL and SQLite are also supported, but MySQL is recommended). Type localhost for Database host and enter the name of the database you created earlier, as well as the username and password associated with it in their respective fields. When ready, click Continue.
On the next page you can choose the database storage engine and database character set for your MediaWiki. You can also set the database account for web access. Leaving the default settings here is recommended. To proceed, click Continue.
On the page that follows you should type the Name of wiki, Your username, Password and E-mail address. You can also choose whether you want to configure more settings using the Ask me more questions option or finalize the installation using I'm bored already, just install the wiki.
Let's finalize the installation and click Continue. If you want to go back and make some changes, you can do it using the Back button on the next page. In case you do not want to do that, press the Continue button again.
You will see the installation process steps completed and you should click on the Continue button once again.
The installation will be fully completed and the LocalSettings.php file which contains the configuration will be suggested for download.
Download the file and upload it to the MediaWiki installation folder. Then you will be able to access your newly-installed MediaWiki.