Why Opatch Auto is not applying PSU on Database Home?

To apply a PSU we can download the required PSU and apply using “opatch apply” command of OPATCH utility. In RAC environment or Oracle restart environment (single node Grid Infrastructure installation), we would need to download “GI PSU” to patch the Grid Infrastructure home. We have option to download and apply “GI PSU” patch to both GI and RDBMS homes as well because GI PSU contains patch for both homes. In this case we use “opatch auto” (for 11g) or “opatchauto” (for 12c and above) command to be run as root user so that path can be applied on both homes. 

ORA-00245: control file backup failed; target is likely on a local file system

Your RMAN backup command may fail with ORA-00245 while backing up current control file as part of database backup. RMAN output along with the error message may look similar to the following. The highlighted in red is the actual cause of this error which I will explain later in this article and provide the solution for this.