Question: How to upgrade from you Fedora 14 or 15 to Fedora 16 ?
I ḿ now behind Fedora 15 and want to upgrade to Fedora16
open a terminal and install preupgarde upgrading tool
yum install preupgrade
start the preupgarde using the command
This process will download needed packages for upgrade to F16 , after this you have to reboot to complete the installation