great thread i just updated my two old Imacs 5.1 to mountain lion , clean installed snow leopard upgraded to lion ,ran Macpostfactor on my hard drive ,no extra partitions , went through setup followed on screen instruction ,once done booted into new macpostfactor setup, selected to do a clean install on my main hardrive partition , ran setup ,setup complete ,all running fine , did updates , once rebooting had to hold options key ,selected recovery drive ,clicked on hack install again, mac booted up into mountain lion all updates complete ,all features of mac working ,machine is running awesome ,thanks a bunch for all the info in this thread , ,,didn't use any extra partition's or create any USB installer's ,
super easy ,love it , great program/utility that macpostfactor is ,
cheers