How to fix the Oracle error CRS-01025: The Oracle Clusterware was upgraded to [string] on all nodes, but the cluster operating version is still [string]. Details in [string].?

In this post, you’ll learn more about the Oracle ErrorCRS-01025: The Oracle Clusterware was upgraded to [string] on all nodes, but the cluster operating version is still [string]. Details in [string]. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CRS-01025: The Oracle Clusterware was upgraded to [string] on all nodes, but the cluster operating version is still [string]. Details in [string].

Reason for the Error CRS-01025: The Oracle Clusterware was upgraded to [string] on all nodes, but the cluster operating version is still [string]. Details in [string].

Cause: The cluster upgrade did not complete because the root upgrade script failed on the last node, the root upgrade script was interrupted by the user, or the cluster upgrade is ongoing.

How to fix the Error CRS-01025: The Oracle Clusterware was upgraded to [string] on all nodes, but the cluster operating version is still [string]. Details in [string]. ?

You can fix this error in Oracle by following the below steps

Action: Check the Oracle Clusterware alert log on all nodes for any problems. Rerun the root upgrade script on the last node to completion, and ensure that the cluster operating version has changed using the ‘crsctl query crs activeversion’ command. If the problem persists, run diagcollection.pl and contact Oracle Support Services.