Upgrading or Installing

The Installation Type dialog (Figure 10-11) presents you with five choices, described below.

Figure 10-11. Installation Type Dialog


If you choose to upgrade and the installation program detects more than one installed Linux version on the system, you'll be asked which version to upgrade. After you indicate this, or if there's only one installed Linux version on the system, the installation program probes your existing system to determine which software packages require updating and presents the Customize Packages to Upgrade dialog (Figure 10-12).

Figure 10-12. Customize Packages to Upgrade Dialog

If you answer No, the installation program starts upgrading existing packages.

Answer Yes if you want to add to or remove items from the list of individual packages to be upgraded. The package selection dialog is seen in the section called Selecting Individual Packages. The upgrade starts when you finish making your changes.

NotePlease Note

Some upgraded packages may require that other packages are also installed for proper operation. The upgrade procedure takes care of these dependencies, but in doing so it may need to install additional packages which are not on your existing system.

The upgrade process preserves existing configuration files by renaming them using a .rpmsave extension (e.g., sendmail.cf.rpmsave) and leaves a log telling what actions it took in /tmp/upgrade.log. As software evolves, configuration file formats can change, so you should carefully compare your original configuration files to the new files before integrating your changes.

The next dialog you'll see is Figure 10-40. This dialog remains on the screen until the upgrade is complete.


If you choose a workstation- or server-class installation, Figure 10-13 appears.

Figure 10-13. Automatic Partitioning Dialog

If you select Continue and press OK, the installation program partitions your disk and decides which software packages to install. Next, you'll see the Hostname dialog explained in the section called Naming Your Computer.

If you select Manually partition or choose to perform a custom-class installation, Disk Druid will begin. The disk partitioning dialogs described in the next section will appear, showing you any current partitions on your system. It is up to you to indicate the partitions and mount points to be used for installation of this version of Red Hat Linux.


Installing Red Hat Linux over another installation of Linux (including Red Hat Linux) does not preserve any information (files or data) from the prior installation. Make sure you save any important files! If you are worried about saving the current data on your existing Red Hat Linux system (without making a backup on your own), you should consider performing an upgrade instead.