I have tried with patch 5 it is not working, so i have downloaded patch 6 and tried.
Both are not working. There is no other test system which upgraded from 2003 to 2008 R2.
On a fresh installed 2008 R2, the startup.bat is running fine without any issues.
It is not meaning of patch 5 or 6, the problem is .bat is not executing....
Please give me suggestions on this only, rather than to try in a test system/latest tool etc.,
Regards