MySQL Server 5.5
The MySQL packages has been renamed. The now official open source version of MySQL is MariaDB. To install the same version of MySQL on Fedora as in Enterprise Linux, such as RHEL, install these packages.
To start the mysqld.
Set MySQL root password to 'root'.
Finally login and test password.
MySQL Workbench 6
The workbench rpm is orphan, so you need to download and install it manually. http://dev.mysql.com/downloads/tools/workbench/
Little bit of searching for installing dependeny packages, with 'yum provides', e.g.
And finally ending up with all required packages.
Then run install of workbench again and start workbench and connect to you localhost.