Solution

Upgrade support is not provided in Enterprise Server v3 Prelude. You cannot upgrade from Sun Java System Application Server 9.1 (GlassFish v2) to Enterprise Server v3 Prelude.

For information about updating an existing Enterprise Server v3 Prelude installation, see Chapter 2, Updating an Existing Enterprise Server v3 Prelude Installation, in Sun GlassFish Enterprise Server v3 Prelude Installation Guide.