Steps to Resolve [INS-08101] Unexpected error while executing the action at state: 'supportedOSCheck'

Switch to the Oracle User
Ensure you're logged in as the Oracle user:

su - oracle

Navigate to the Oracle Inventory Configuration Directory Move to the directory containing the cvu_config file:

cd $ORACLE_HOME/cv/admin

Edit the cvu_config File Open the cvu_config file using a text editor like vim:

vim cvu_config

Add or Update the CV_ASSUME_DISTID Variable Add the following line (or update it if it already exists), replacing OEL* with the appropriate version of Oracle Linux (e.g., OEL7, OEL8, etc.):

CV_ASSUME_DISTID=OEL*

The * acts as a placeholder for your Linux distribution's version.

Save and Exit the File In vim, press ESC, type :wq, and press ENTER to save and exit.

Re-run the Oracle Installer Now, run the Oracle installer again, and it should bypass the OS compatibility check:

./runInstaller

That's all! enjoy Thanks Rana (alias rana10cse)