Howto upgrade Fedora 11 to Fedora 12 with Preupgrade

I think the most easiest way to upgrade Fedora 11 to Fedora 12 is program called preupgrade, which download needed packages from the server and then just reboot to installer and after install boot the new system. Of course it’s important backup your important files before upgrading.

Commands and screenshots of whole upgrading process

First start with updating all Fedora 11 packages with following command as root:

yum update

Install preupgrade as root:

yum install preupgrade

Start preupgrade as root:

preupgrade

Preupgrade information window

Choose desired release

Preparing system for upgrade

Downloading files

Prepare and test upgrade

When ready to begin upgrade then reboot.

Starting Fedora 12 installation

Installing Fedora 12 packages

Booting just upgraded Fedora 12 system

Fedora 12 desktop

Note: If you have any problems with Xorg when booting the Fedora 12 then it’s good read this.