After having QGIS 2.x successfully installed on Fedora 20 (yum install qgis) only the QGIS itself seems to be installed. You may get errors when trying to fetch new Plug-ins (Python!) or you have an nearly empty Raster-menu (without the GDAL-Tools).
In these cases install the following packages with YUM:
Screenshot-example (error): Missing GDAL-Lib – although the menu-items are in place:
After installation of the above mentioned packages everything works fine 🙂 – e.g. hillshade and contour-lines