Oracle Database Software Is Installed, but Cannot Be Found
Description:
Oracle Orachk and Oracle Exachk display this message if the tools cannot find the Oracle Database software installed.
Action:
If the Oracle Database software is installed, but Oracle Orachk and Oracle Exachk cannot find, then set the RAT_ORACLE_HOME environment variable to the applicable ORACLE_HOME directory.
For example, enter the following command, where `*your-oracle-home*` is the path to the Oracle home on your system:
$ export RAT_ORACLE_HOME=your-oracle-home
Oracle Orachk and Oracle Exachk perform best practice and recommended patch checks for all the databases running from the home specified in the RAT_ORACLE_HOME environment variable.