ODA 12.1.0.2.8 unable to run Orachk  Getting: Unable to determine nodes in cluster.&#16
When running oakcli orachk, getting the following output:
Unable to determine nodes in cluster. Do you want to enter manually.[y/n][y]n
Since you did not enter any node names, this script will execute only on the local node.
Checking ssh user equivalency settings on all nodes in cluster
bash: /u01/app/12.2.0.1/grid/bin/crsctl: No such file or directory
Searching for running databases . . . . .
Databases are not registered in Clusteware to check best practices.Set environment variable RAT_DBNAMES to name of the database and re-run.
like export RAT_DBNAMES="TESTDB,PRODDB"
when running oakcli orachk -v:
ORACHK VERSION: 12.1.0.2.8(DEV)_20160719