Oracle under Linux – emctl start dbconsole command failed

After certain time of the testing on the Oracle 11.2.0.1.0 on Linux, encountered below errors. [tom@ocp ~]$ emctl start dbconsole Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0 Copyright (c) 1996, 2009 Oracle Corporation. All rights reserved. https://ocp:1158/em/console/aboutApplication Starting Oracle Enterprise Manager 11g Database Control ………………………………………………………………………………… failed. —————————————————————— Logs are generated in directory /u01/app/tom/product/11.2.0/dbhome_1/ocp_orcl/sysman/log Check […]