[Oct 4, 2010 Update: Since this article was published last year, there have been several updates to the patches list for the respective Oracle Homes (10.1.2, 10.1.3 and 188.8.131.52) based on customer issues and internal testing. The Rapid Install content for those Oracle Homes has not been updated with the same updates. Hence, the patches delivered by the EBS 12.1.1 Rapid Install will not be the latest baselines available for those technology stack components. If you use this Rapid Install method, you still will need to refer to the respective documents to apply the latest patches added after the EBS 12.1.1 Rapid Install was released. For pointers to those documents, see the individual listings for the respective techstack components in this certification summary.]
All three of the major new technology stack components included in Oracle E-Business Suite Release 12.1.1 are also certified with Release 12.0. You could manually upgrade each of these R12.0 techstack components yourself. But now that Release 12.1.1 is out, why bother with that time-consuming approach when there's an easier and faster way?
You can use the EBS 12.1.1 Rapid Install to upgrade just the application and database tier technology stack components in your existing EBS 12.0 instance. Your technology stack components are upgraded to the same versions delivered with EBS 12.1.1 while leaving your EBS 12.0 product code (e.g. Financials, Supply Chain) untouched.
Running the Rapid Install with the -techstack option
Using the rapidwiz -techstack option with the EBS 12.1.1 Rapid Install provides options to upgrade the applications and database tier components for the following ORACLE_HOMEs:
1. Upgrading the Database Technology Stack
Before selecting the database tier technology stack upgrade, make sure that your environment meets the minimum operating system prerequisites for running the 11gR1 Database. If you choose the database tier upgrade, the wizard takes inputs for the Database host, Oracle SID, ORACLE_HOME and OS user related inputs.
It creates the new ORACLE_HOME with the associated Release 12.1.1 patches for the 11gR1 184.108.40.206 Database. The installation then proceeds with installing the 11gR1 database software and the required configuration files for the E-Business Suite.
After the installation and configuration is complete, you need to complete the remaining DB upgrade steps using Section 1 and Section 2 of Interoperability Notes for 11gR1 with EBS R12.
2. Upgrading the Applications tier Technology Stack
If you choose to upgrade your applications tier, the Rapid Install wizard requires the CONTEXT file for your existing configuration. Point the wizard to the Application tier context file for your applications tier, e.g. $INST_TOP/appl/admin/<context name>.xml.
The wizard identifies the respective ORACLE_HOMEs from the context file and proceeds to upgrade these components.
After validating and confirming the information, the installer proceeds to upgrade the components in the two Oracle Application Server 10g 10.1.3 and 10.1.2 ORACLE_HOMEs.
After all of the new Oracle Application Server 10g files are laid down in your filesystem, the Rapid Install wizard validates the installation. A green tick on the Validation window means the installation passed the post-install checks.
Once you've run this upgrade on all of the Application tier nodes in your EBS instance, you're done! Automated, validated, and fast. References