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Planning an Upgrade to Oracle Fusion Middleware 12c FAQ (Doc ID 2152054.1)

Last updated on MARCH 28, 2025

Applies to:

Oracle Fusion Middleware - Version 11.1.1.0.0 to 12.2.1.1.0 [Release Oracle11g to 12c]
Information in this document applies to any platform.

Purpose

This document provides a list of some frequently asked questions about the Oracle Fusion Middlware (FMW) upgrade to 12c.  This article is intended for support engineers, consultants, system architects and administrators.

Questions and Answers

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In this Document
Purpose
Questions and Answers
 What is an upgrade?
 Certification and System Requirements
 Getting to an Upgrade Starting Point
 Download the Software
 Middleware 12c Install and Upgrade Documentation
 What are the general steps to upgrade to 12c?
 Where are the upgrade tools (ie.  Upgrade Assistant or Reconfiguration Wizard) located?
 How does a change of Platform / Operating System fit into the upgrade story?
 Can you upgrade from 11g to 12c on a different host?
 What if I want to have new hardware?  Can I upgrade to 12c on this new hardware?
 What if I'm upgrading but the certification is misaligned?  
 What if I'm changing the bit level (ie. 32 to 64)?  Can I perform an upgrade?
 What if I'm changing the one operating system (such as Windows) to another (such as Linux) or one hardware platform (such as SPARC) to another (such as Intel)? Can I also upgrade?
 
References

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