How to upgrade Fedora without downloading a new CD image

Upgrading Fedora from one version to the next is very simple just follow these steps:

1. Make sure you backup all your data, just to be safe.

2. Make sure your system is up to date:
#yum update

3. Just in case, make sure you running the latest version of RPM and yum:
#yum update rpm
#yum update yum

4. Install the preupgrade package:
#yum install preupgrade

5. Run the preupgrade command: