I've got a late 2012 iMac with a 3 TB fusion drive. Before Bootcamp was supported by osx, I did the workaround to make the Fusion drive work with bootcamp, which involved ton's of trickery with the terminal. Worked fine, but want to install Mavericks obvioulsy and get the bootcamp partition configured properly from within OSX. My problem is that I cannot remove the bootcamp partition I previoulsy created or in any way wipe my disk and start from scratch. I've tried everything....booting up in recovery mode and using diskutil from the installer, all kinds of terminal stuff to clear the partition tables etc. No luck. What do I need to do to essentially just totally wipe my disk and start from scratch? Everything is backed up etc, so i don't mind doing it at all. Any tips or ideas would be greatly appreciated.