In some software versions (e.g., 12.2.0.1.10), a bug or specific validation might force the use of the -nonrolling flag even on single-node setups. How to Execute Patching in Non-Rolling Mode
opatchauto.sh -nonrolling -bundle /path/to/patch_bundle.zip opatchauto72030 execute in nonrolling mode high quality
: Re-run opatch lsinventory on every node to confirm the new patch ID is listed. Non-Rolling upgrade in RAC using opatchauto - Oracle Forums In some software versions (e