Em, glad to see Zimbra feel this is important, no reply or response. This really inspires me as I start to rebuild things that a future upgrade will not return me to oblivion at some point.
Oh well, guess I'll have better backups next time although I might edit the edit the funtion removeExistingInstall() in util/utilfunc.sh before I upgrade next
My fault not good enough backups, Zimbra fault that the upgrade managed to bork and kill my install!