20.2. Upgrading Your System
In most cases, the simplest way to upgrade an existing Fedora installation is with the preupgrade tool. When a new version of Fedora is available, preupgrade downloads the packages necessary to upgrade your installation, and initiates the upgrade process.
Install preupgrade with your graphical package manager, or type yum install preupgrade at the command line and press Enter.
To run preupgrade, type preupgrade at the command line and press Enter.
You can also upgrade a Fedora installation by starting the installation process by any of the methods described in
9章Installing using anaconda. If the installer detects a previous Fedora installation on the system, it will ask you whether you want to upgrade that installation — refer to
「 The Upgrade Dialog 」
The Upgrade Examine screen appears if you have instructed the installation program to perform an upgrade.
If the contents of your /etc/fedora-release file have been changed from the default, your Fedora installation may not be found when attempting an upgrade to Fedora 16.
You can relax some of the checks against this file by booting with the following boot command:
linux upgradeany
Use the linux upgradeany command if your Fedora installation was not given as an option to upgrade.
To perform an upgrade, select Perform an upgrade of an existing installation. Click Next when you are ready to begin your upgrade.
