OEM Configuration in 10g using response file

create password file using orapwd

Create a response file (ex: resp)with below parameters:

ORACLE_HOME =
PORT =
SID =
HOST =
DBSNMP_PWD =
SYSMAN_PWD =
SYS_PWD =
DBCONTROL_HTTP_PORT =

emca -config dbcontrol db -repos (create/recreate) -silent -respFile resp


Note:If emca is failing with dbsnmp user/password invalid enter password in "" (eg: "welcome")

With out response file create repository.

emca -config dbcontrol db -repos create -SID DEV -PORT 1521 -ORACLE_HOME /u01/oracle/DEV/db/tech_st/10.2.0 -DBCONTROL_HTTP_PORT 1156