On most systems, using Fedora’s preupgrade package is the most reliable way to update to the next Fedora release. However, this isn’t the case with Slicehost and Rackspace Cloud Servers. Here are the steps for an upgrade from Fedora 13 to Fedora 14 via yum: yum -y upgrade wget http://mirror.rackspace.com/fedora/releases/14/Fedora/x86_64/os/Packages/fedora-release-14-1.noarch.rpm rpm -Uvh fedora-release-14-1.noarch.rpm yum -y install yum yum -y upgrade If you happen to be upgrading a 32-bit instance on Slicehost, simply replace x86_64 with i386 in the url shown above.