well fedora is a VERY VERY fast passed "Research and Development" distro
with a very NEW and often VERY different release every 6 months
and support for any one version for ONLY 13 months
now some people have not had many issues in doing a inplace UPGRADE
I am NOT one of them
fedora as of 17 dumped the testing "preupgrade"
they moved to a NEW upgrade system "FedUP" as of fedora 18
way to upgrade is to wipe the install and do a new install EVERY 6 months
once you get 19 installed then give "fedup" a go for upgrading to fedora 20 in about 20 to 30 days .
as i recall as of fedora 16 they moved to the "systemD" boot process dumping the old systenV
-- there are no "runlevels" any longer
there is a VERY good guide for installing things like mp3 and movie support
-- so good that it is the VERY first one listed in the fedora set up guide