Installation of Knowledgeroot
If you have downloaded the tarball of knowledgeroot you need to extract this file. If you use the linux shell you can make: tar -xzf knowledgeroot-0.9.x.tar.gz to extract the archive. After you do that you have a new folder called knowledgeroot-0.9.x. You should place this folder to your webdirectory! After that open your browser and open your page http://domain.tld/knowledgeroot/install.php to start the installation. Follow the instructions on this page.
After installation you have access to the frontent with http://domain.tld/knowledgeroot/ and you have access to the Backend http://domain.tld/knowledgeroot/admin/ .
The first thing you should do: login as admin with password admin and change the password for this user!!! After that you can create new users and your first root!
Install Extensions in Knowledgeroot
You need to go to the admin interface: http://domain.tld/knowledgeroot/admin/ and should login with your user credentials you have set.