Hi Pete > I guess all one really needs to make sure is erased is the previous > system hierarchy (which is what I did this time, and it seems OK). Yes the system should be mostly self-contained in there. Maybe you want to wipe-update common and develop as well. What you want to keep usually resides in home, which can mostly be left as is. > Maybe the Installer could do that (warning the user first), as > update-installs are likely to be fairly frequent with Haiku for > a while! There was a discussion about that once. Not sure about the exact outcome, but wipeing system is always safe (as the user is not supposed to mess with it and if he does he's at fault; of course it'd still be documented), wiping common and develop could be done after asking IMO. Regards Michael