In the next few minutes,I will be discussing about the installing Oracle Enterprise Manager Cloud Control 13c Release 2 (13.2.0.0) Installation on Oracle Enterprise Linux 6 . OEM makes the life of DBA or DMA much easier. You need to have the appropriate Linux OS packages, kernel parameters and database parameters to be in place. First you need to install the repository database, for step by step instructions to install 12c database you can follow ( http://sajidkhadarabad.blogspot.com/2015/09/12c-database-install-with-screenshots.html )
Once you are done with the repository installation. Lets proceed with Oracle Enterprise Manager installation.
[oracle@sajidserver oracle]$ mkdir -p /usr/app/oracle/oms13c
[oracle@sajidserver oracle]$ mkdir -p /usr/app/oracle/agent13c
[oracle@sajidserver oracle]$ mkdir -p /usr/app/oracle/oms13c/swlib
[oracle@sajidserver oracle]$ chmod 775 -R oms13c agent13c
[oracle@sajidserver stage]$ ./em13200_linux64.bin
It will check for all the repository pre-requisites
Provide the credentials and keep them recorded. If not you can even change it later as you needed. You need to have the right host name and database name.
Make sure if you database is RAC, you have the connect string provided right here
At this point you are done with installation of Oracle Enterprise Manager Cloud Control 13c Release 2 (13.2.0.0) on Oracle Linux 6