10.2.0.5 DBCA does not recognize 11.2.0.4 Grid

Hello everyone,

as in the subject.

DBCA does not show RAC option.

Do you have any other ideas what could be the reason of such dbca behaviour, other than these mentioned below?

Current setup:

Linux RHEL 5.9 x86_64 bit.

nodes: rac1, rac2

11.2.0.4 grid installed, asm configured.

user:grid

location:/oraGrid/product/11.2.0/gridHome/bin

11.2.0.4 racdb instance provisioned on top of that grid.

user:oracle
location:/oracle/product/11.2.0/db_11204

10.2.0.1 OH installed on both nodes to:

user:ora10g

location:/oracle/product/10.2.0/db_10205

10.2.0.1 OH patched to 10.2.0.5 on both nodes

user:ora10g

location:/oracle/product/10.2.0/db_10205

//10.2.0.5 contains those unpublished bugfixes for running pre11g db on top of 11g grid.