Oracle® Database 11g / 12c / 18c error codes ORA-00220: control file not mounted by first instance, check alert log for more info

ORA-00220: control file not mounted by first instance, check alert log for more info

Oracle Error Code: ORA-00220

Cause: The specified control file has a different mount ID than the other control files that are being mounted. This means that the first instance to mount the database did not use this control file.

Action: Find and install the correct control file.