How to Deinstall FMW Oracle Home Post Upgrade To ?

(Doc ID 2256896.1)

Last updated on APRIL 21, 2017

Applies to:

Oracle Fusion Middleware - Version and later
Information in this document applies to any platform.


Upgrade Oracle Fusion Middleware Infrastructure to the 

As the Upgrade Guide clearly states, "If you are upgrading from a previous 12c release (, or, then you must install the 12c ( distributions into a new Oracle home. Do not attempt to reuse the existing Oracle home for this upgrade. Upgrading to 12c ( is not a patch release."

Also from Oracle Fusion Middleware 12c Release 2 (12.2) Announcements (Doc ID 2067900.1)

“ This is a full installation with an out-of-place upgrade from previous releases. This does not update existing installations. “

So it is required to install the in a new Oracle home.

However after completing the upgrade process successfully , is it required to maintain 2 Oracle Homes OR deinstall the older Oracle home (, or and if so what is the procedure to do so?


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