Oracle pre-checks

Symptom
Oracle database connection error reported during installation.
Cause
During the installation if you select Oracle as the database, the installer verifies the information that is given in the database options screen by connecting to the database. If the connection fails, an error is reported. The error message contains the error that is returned from Oracle.
Solution

Go back to the previous screen and use the information that is given to correct the problem.

For example: If the Oracle database is not created before the installation, the following error is reported.

Failed to verify userid, password, server, database and driver 
file combination supplied.Please verify details and try again.
 ( Listener refused the connection with the following error:
ORA-12505. TNS:listener does not currently know of SID given in 
connect descriptor 
The Connection descriptor used by the client was:
127.0.0.1:1521:TRCDB

In this case, you must cancel the installation and create the Oracle database before you install Remote Control again.