When patching is not enough: Oracle 11g R2 on Solaris SPARC requires fresh base installation of Solaris 10 U6

While checking MOS i found an interesting note (ID 964976.1) which states:

Applying a kernel patch or a Solaris patch bundle is not the equivalent
to  installing the specific Solaris 10 "update 6" image. 11gR2 RDBMS software
is  only certified for a base install image of Solaris 10 update 6 or greater.

There is a FAQ (ID 971464.1) on this problem. Here it states:

Oracle/Sun has specifically started that "installing patches will not bring it  to Update 6".

and

It is only certified for a base install image of Solaris 10 Update 6  or greater, or an
upgraded image of an earlier Solaris 10 update to at least  Update 6 or greater. There are
only two methods to accomplish this " image".  Please see Question #9 for more details.

So keep this in mind when installing 11g R2 on Solaris SPARC.