Chapter 4. Upgrading an Existing System
The installation system automatically detects any existing
installation of Fedora Core. 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.
If your system contains a Fedora Core or Red Hat Linux installation, the
following screen appears:
To perform an upgrade of an existing system, choose the
appropriate installation from the drop-down list and select
Next.
![[Note]](./stylesheet-images/note.png) | Manually Installed Software |
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Software which you have installed manually on your existing Fedora Core
or Red Hat Linux system may behave differently after an upgrade. You
may need to manually recompile this software after an upgrade to
ensure it performs correctly on the updated system.
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