To install Tracks on Fedora you need the following packages:

• ruby
• ruby-devel
• ruby-rdoc
• ruby-mysql (there is a package ruby-sqlite3 too, but I did not test it)

Install these with

yum -y install ruby ruby-devel ruby-rdoc ruby-mysql

On Fedora 8 there is a package for installing gem too:

yum -y install rubygems

For older versions you need to manually download it from here

After these installs, your ruby installation is read. Just follow the instructions in the installation.html which you can find in the .zip you downloaded for Tracks.