Hello Reagan and Thomas,
Yeah I know that, I already done a lot of installations and migrations... 
my concerns is because this is an Oracle database 
and besides of that I´m in the phase 23 of 26, which means that a lot of things happened, loaded and were created at database and OS levels during this installation process.
But OK... I will follow your recommendations. I will update this message as soon I have more details about it.
Thank you,
João Dimas