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The Upgrade Examine screen appears automatically if the installation program detects a prior version of Red Hat Linux on your system.
If the contents of your /etc/redhat-release file have been changed from the default, your Red Hat Linux installation may not be found when attempting an upgrade to Red Hat Linux 9.
You can relax some of the checks against this file by booting with the following boot command:
Use the linux upgradeany command if your Red Hat Linux installation was not given as an option to upgrade.
If you would like to perform an upgrade, select Perform an upgrade of an existing installation and refer to Appendix A Upgrading Your Current System for further instructions.
Be sure to select Customize packages to be upgraded if you would to have more control over which packages are upgraded on your system.
To perform a new installation of Red Hat Linux on your system, select Perform a new Red Hat Linux installation and click Next.