Template General_Purpose.dbc does not exist. Please specify an existing template for database creation.
I got this error during the Installation of 11gR2.Did Install /UnInstall couple of times , but not able to resolve the issues.
Latter I Unzip both the Files Disk1/2 in One folder ( Copied the Files Disk2>database>stage>components , in same location of Disk1).
And able to install it sucessfully.
Hope that helps