What is the best approach when it comes to CA Directory In-place upgrade (from v12.0 SP18 to v12.6 SP4) ?
1. Renaming/Backing-up the existing installation directory with an another name and then running the upgrade installer ? In this case how easy would be a rollback ?
Will just an older installation path renaming/restoring will help or an uninstall of the newer version followed by a re-install of the older version will be required ?
2. Upgrading on a separate mount point in the Linux box ?
We want to do an in-place upgrade in such a manner where the roll-back should be easy and it shouldn't require an uninstall of the newer version and then a re-install of the older version.