Hello Linux Geeksters and Fedora Enthusiasts. As you may know, the Fedora developers have announced that Fedora 18 “Spherical Cow” has reached end of life (EOL), starting with yesterday, the 4th of January, 2014.
So, the Fedora developers will no longer provide updates and fixes, so the users are advised to update to the latest version available, which is Fedora 20.
How to upgrade from Fedora 18 to Fedora 20, via FedUp:
As you may know, upgrades on Fedora systems can be easily done via the terminal, the below commands will perform a netinstall, of Fedora 20. Make sure that you have your laptop pluged in and a good internet connection, and do:
$ sudo yum update fedup fedora-release
$ sudo fedup --network 20
To see if the upgrade has been done successfully, read the fedup log file: /var/log/fedup.log. If everything went smoothly, no errors will be listed in fedup.log.