The OEM not start. User sysman is locked

Question

Dear,
       I can't start my OEM why password the user sysman expired. I changed password of user sysman and unlock, but always start OEM the user sysman lock again. I use Oracle Database 11gr2.
       I´ve already the steps below, but it not solved my problem.
To change the Sysman password:
1. Stop the OMS instances that are associated with the repository
a. opmnctl stopall
2. Change the sysman password in the database:
a. Logon to sqlplus as a dba user
b. Issue the command: alter user sysman identified by newpassword;
c. Exit Sqlplus
3. On each management server host, cd to the OMS $ORACLE_HOME/sysman/config directory
a. backup the emoms.properties file
b. edit the emoms.properties file and modify the parameters;
eml.mntr.emdRepPwd=new_password
oracle.sysman.eml.mntr.emdRepPwdEncrypted=FALSE
NOTE: When you restart the OMS, the FALSE setting will change to TRUE and the password will become encrypted in the file
4. Still on Management Repository host, cd to the AGENT_HOME/bin and stop the agent:
./emctl stop agent
5. Next, cd to the AGENT_HOME/sysman/emd directory
a. Edit the targets.xml file and modify the oracle_emrep target definition with the following in bold:
<Target TYPE="oracle_emrep" NAME="Management Services and Repository" VERSION="1.0">
<Property NAME="MachineName" VALUE="host.us.oracle.com"/>
<Property NAME="Port" VALUE="1521"/>
<Property NAME="SID" VALUE="sid"/>
<Property NAME="UserName" VALUE="552f2080d6d8c3c6" ENCRYPTED="TRUE"/>
<Property NAME="password" "newpassword" ENCRYPTED"FALSE"/>
b. Save the file. The TRUE value will change to FALSE and the newpassword will become encrypted when you restart the Agent.
6. Issue the command (from the Agent O_H/bin):
./emctl start agent
7. Restart each of the OMS's
emctl start oms
How can I do to solve this problem?
I can't also drop repository of the OEM.
Thanks
Jurandyr F. Alves

Answer 1

Hi,
Its just a single command that needs to be executed:
cd <OMS_HOME>/bin
emctl config oms -change_repos_pwd -change_in_db
Note:
1. The above command
- will prompt you for the current password and the new password.
- will modify the sysman password in the repository database, in the emoms.properties configuration file / WLS Credential store and the monitoring credentials for the 'OMS and Repository' target.
- will ask you to bounce the OMS once the command is completed successfully
- for 11G, the command will modify the password for sysman and sysman_mds users in the repository database, modify the password in the credential store and change the monitoring credentials for the 'OMS and Repository' target.
2. The '-change_in_db' parameter is optional and is used to change the SYSMAN password in the repository database.
- If the sysman password is manually modified in the repository database, this option does not need not be specified.
- When this parameter is specified, the command will prompt for the current sysman password.
- It is recommended to use this option rather than manually modify the password in the repository database.
++ Once the above command executed, bounce the OMS.
Best Regards,
Venkat