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Wednesday, May 12, 2010

6.14. Upgrading an Existing System

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6.14. Upgrading an Existing System

Preupgrade

Fedora includes preupgrade, a command-line tool that allows you to upgrade easily to a new version from within your existing Fedora installation.
The installation system automatically detects any existing installation of Fedora. The upgrade process updates the existing system software with new versions, but does not remove any data from users' home directories. The existing partition structure on your hard drives does not change. Your system configuration changes only if a package upgrade demands it. Most package upgrades do not change system configuration, but rather install an additional configuration file for you to examine later.
Note that the installation medium that you are using might not contain all the software packages that you need to upgrade your computer. In particular, the Fedora live CD contains a relatively small subset of the packages available in Fedora. To update packages that are not included on the installation medium, make sure that you select the Fedora 12 - architecture or the Fedora 12 - architecture - Updates repository the during package group selection — refer to Section 6.24.1, “Installing from Additional Repositories”.

6.14.1. Upgrade Examine

If your system contains a Fedora or Red Hat Linux installation, a dialog appears asking whether you want to upgrade that installation. To perform an upgrade of an existing system, choose the appropriate installation from the drop-down list and select Next.
The upgrade screen
The upgrade screen.
Figure 6.10. The upgrade screen

Manually Installed Software

Software you have installed manually on your existing Fedora or Red Hat Linux system may behave differently after an upgrade. You may need to manually reinstall or recompile this software after an upgrade to ensure it performs correctly on the updated system.

Go there...
http://docs.fedoraproject.org/install-guide/f12/en-US/html/sn-upgrading-system.html#sn-upgrade-examine

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