To obtain a checklist of tasks you must complete before upgrading an Oracle Database on a physical server or virtual machine, run the AutoUpgrade utility (autoupgrade.jar) in analyze mode.

Before starting your upgrade, ensure that you have a new release Oracle Database installed and configured that you can use as the target for your upgrade. When your target Oracle Database home is prepared, run AutoUpgrade with the -preupgrade clause on your system, using the instructions that you can find in this guide.

Oracle requires that you run AutoUpgrade in -analyze mode before you upgrade Oracle Database. AutoUpgrade can identify issues for you to address before you start your upgrade. In certain cases, AutoUpgrade can also generate scripts that can resolve some issues.