To upgrade Oracle VM Server from a release prior to Release 3.3, you can either:
Set up two separate Yum repositories in Oracle VM Manager and use the UpgradeServers.py script to upgrade multiple Oracle VM Servers to Release 3.3.
Use the Oracle VM Server installation media to reinstall each server, as follows:
Migrate all virtual machines off the Oracle VM Server that you plan to upgrade. See Migrate Virtual Machines in the Oracle VM Manager User's Guide.
Unpresent all repositories from the Oracle VM Server. See Present or Unpresent Repository in the Oracle VM Manager User's Guide.
Delete the Oracle VM Server from Oracle VM Manager. See Delete Server in the Oracle VM Manager User's Guide.
Reinstall the Oracle VM Server with the 3.3.
xinstallation media. See Section 2.1.2, “Installing Oracle VM Server From a DVD-ROM or CD-ROM”.Discover the Oracle VM Server with Oracle VM Manager and add it to the appropriate server pool after the installation is complete. See Discover Servers in the Oracle VM Manager User's Guide.
The following sections describe how to configure the Yum repositories to upgrade Oracle VM Server from Release 3.2 or earlier to Release 3.3.