Q9: Does it matter if other Java ES components are already on my host?

Answer: Yes, if the versions of those components are incompatible with Java ES 5 Update 1.

An initial Java ES installation goes most smoothly if you are installing on a computer that has only the operating system installed, but this is not always possible. You can install Java ES on a host that already contains Java ES components. However, your installation might be interrupted if the installer finds incompatible versions of those components on the host. In this case, the installer cannot proceed until you either remove or upgrade to supported versions of the Java ES components. See Java ES Components Used in This Release in Sun Java Enterprise System 5 Update 1 Installation Guide for UNIX.

Full instructions for upgrading individual components are in the Sun Java Enterprise System 5 Update 1 Upgrade Guide for UNIX. Additional information on upgrading is contained on the Upgrade page of the Java ES hub.

• Upgrading product components Generally, the installer cannot upgrade the product components.

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  Note –

  If the installer finds upgradable versions of Application Server, HADB, Java DB, or Message Queue on the host, it marks them as upgradable in the Choose Software Components page and will upgrade them if you select them. Upgradable versions can mean earlier versions of Java ES, or Solaris-bundled versions of Application Server and Message Queue. However, if you want to upgrade Application Server from Java ES 2 (2004Q2) on Solaris OS, you must first manually remove the Solaris-bundled version of Application Server.

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• Upgrading shared components The installer upgrades shared component components automatically during installation.

• Removing components For product components that were installed using the Java ES installer, remove them using the Java ES uninstall utility that was put in place during the original installation. See Running the Uninstaller in Sun Java Enterprise System 5 Update 1 Installation Guide for UNIX. If no uninstaller is present, the components were probably installed by another method, or an uninstallation has already been done. If you cannot use the uninstaller, you can remove the packages for the components manually. For a list of packages, see Chapter 5, List of Installable Packages, in Sun Java Enterprise System 5 Update 1 Installation Reference for UNIX. Use the following UNIX commands to remove packages manually:

  • Solaris OS: pkgrm

  • Linux: rpm -e