Details out upgrading manually, using cd/dvd, using fedora-release and
yum, preupgrade. A fairly complete reference
"Once a release is available, you can run PreUpgrade at any time by
entering the command preupgrade as root (in Fedora 10 and later, you
will be able to start the program directly from PackageKit, the default
software installer). PreUpgrade is a wizard that steps you through the
necessary upgrade steps. Your only input to the wizard is to select the
distribution to which to upgrade, and click the Apply and Forward
buttons to move through the wizard. PreUpgrade downloads the packages
needed by the upgrade, and you can continue to work until you are ready
to reboot and finish the process.
Using PreUpgrade is probably the easiest way to upgrade, and from the
traffic on the Fedora user list, it's probably the one that most people
plan to use on Fedora 10."
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