When running the Enterprise Server 2.1 IFR installer with the —console option (command-line mode), you are prompted:
Do you want to upgrade from previous Application Server version? |
Unfortunately, the IFR installer does not support such upgrades, and so this prompt is erroneous. If you answer yes to the prompt, the installation proceeds normally, but no indication that a complete installation was performed, rather than an upgrade.
Use the upgrade tool if you want to upgrade your Enterprise Server installation.