You can upgrade from an earlier installation, version 2.5 and higher (if you're on a version prior to 2.5, you'll need to upgrade to 2.5 before upgrading to this version). If you're experienced with previous upgrades, you'll notice that the new platform presented with Jive SBS means that the process has changed considerably. While the steps you'll take here to upgrade to Jive SBS include special steps to get from a previous version to this one, you'll only do these steps for this upgrade; future upgrades are made much simpler because they're managed through package manager.
The following steps are written for the scenario where an existing installation resides on a separate host from the installation of the package. If the package is installed to the same host where the previous instance is running, the steps below are the same, with the exception that you do not need to copy files between the two hosts.
The following assumes that the Jive SBS Platform package has been installed to the target host and that the installation produced no warnings or errors.