Be aware of the following caveats when upgrading an OES server:
Other Novell products, such as GroupWise, and third-party applications that you have installed are treated differently by default when you upgrade an OES server, depending on the version of the server you are upgrading:
OES 1: Applications are deleted by default during an upgrade.
OES 2: Applications installed on an OES 2 server are retained, but might not work after upgrading.
If iManager 2.5 is installed on a NetWare server, and you upgrade it to NetWare 6.5 SP8, iManager and its associated plug-ins are automatically updated to version 2.7. For more information about iManager 2.7, see the Novell iManager 2.7.4 Administration Guide.
If you are using iManager 2.02, iManager is not upgraded.
eGuide, Novell iFolder 2, and Virtual Office are not supported on OES 2. If you upgrade an OES 1 Linux server with any of these installed to OES 2 SP3, the services cease to function.
If your OES server has multiple instances of eDirectory running (multiple trees), any attempt to upgrade the server fails.
You must remove all instances, except the one that uses port 524, prior to an upgrade.
For more information, see Section 7.7.5, One Instance Only.