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B Upgrading OpenCms In this appendix, we will cover upgrading from OpenCms 6.0.4 to OpenCms 6.2 or later. Getting the Upgrade Package The first thing you will need to do is get the upgrade package from the official OpenCms website, http://www.opencms.org. The OpenCms upgrade package is different from the OpenCms installation package since it contains a special wizard to guide you through the process of upgrading. At the time of this writing, the most recent version of the updater is called opencms_upgrade_to_6.2.1.zip. Once you have the package, you are ready to begin the installation process. Preparing for the Upgrade While the upgrade process has been tested and is reliable, there is always the possibility that something could go wrong. Therefore, before proceeding, you should make a backup copy of your OpenCms installation. You may want to export your VFS and your custom modules. (See Chapter 4.) You may also want to dump a copy of your database. (Consult your database documentation.) During the upgrade, OpenCms will re-install all of the core OpenCms modules, including TemplateOne and the documentation. If you have modified any of these modules, your changes will be lost during the upgrade. You may want to export the changed resources (rather than the whole modules) so that you can re-import them after the update. It can also be a good idea to make a spare copy of the OpenCms web application directory. To do that, stop tomcat (or whatever servlet container you are running), and copy the $CATALINA_HOME/webapps/opencms folder to another location.

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