Before to start the upgrade, remember that is important to take a look on the upgrade page of fedora before to upgrade , because you can have more advises about upgrade procedure.
Important : Make a complete backup of any important data before performing an upgrade. Important data may include the contents of your entire /home directory as well as content from services such as an Apache, FTP, or SQL server, or a source code management system. Although upgrades are not destructive, if you perform one improperly there is a small possibility of data loss.
You made the backup ? Ready for upgrade ? If yes then let`s start the upgarde to Fedora12. GoodLuck
1- First Methode : Upgrade using preupgrade :
First update you packge to latest version with :
yum update
try again to check if you have the latste rpm (redhat packge manager)
yum update rpm
Now install the upgrade package :
yum install preupgrade
Now always on the terminal, run the upgrade using the command :
preupgrade
if you have some dependencies issues . please remove the packages bellow
totem-gstreamer
Policykit-kde
2- 2nd Methode :
Remember that is important to take a look on the upgrade page of fedora before to upgrade see link.
First install
rpm -ivh http://ftp.nluug.nl/pub/os/Linux/distr/fedora/linux/releases/12/Fedora/i386/os/Packages/fedora-release-12-1.noarch.rpm
rpm-ivh http://ftp.nluug.nl/pub/os/Linux/distr/fedora/linux/releases/12/Fedora/i386/os/Packages/fedora-release-notes-12.0.0-4.fc12.noarch.rpm
Now ,
Yum update
yum upgrade
3-3d Methode ; Upgrade from DVD Fedora12 .
When installing DVD please chose Upgrade instead of install and enjoy
After upgrade is finished , reboot your computer. And Goodluck :)
Read also at unixmen:
- Fedora 12 constantine is out !
- Propose a name for Fedora 13
- AWN - Just another launchbar for linux desktop
- Enchance your launchbar in Linux with Cairo-Dock
- Build samba server in Fedora/Centos






You could add the upgrade procedure using the Fedora 12 DVD.
Thanks.