"Finish the Upgrade - Page 3-8" from 269.1
As I've potentially made it past the Java stuff, I'm now to the section of my R12 upgrade where one would traditionally run RapidInstall a second time (per the upgrade manual, page 3-28)... however, note 269.1 seems to dance around this with several manual steps and no clear description of if I should be running RapidInstall in configuration mode or if the series of manual steps does the trick.