Hi all. What up with the new boot with Apple and Recovery ? You can now no longer just zerodisk the recovery HD via Terminal in one go (aka /dev/disk0), since it looks like Apples now prevents the Recovery partition from being wiped.. Instead, i found out you need to wipe the partition first, reboot using usb media, and then you can wipe the Recovery HD on disk. In DU, the volume was greyed out. Anyone know why Apple did this ? In addition i get beach balls every time i start installer, and also take 10 times longer to even load up from usb than with Mavericks. I hope this is a bug. Anyone else have this trouble ? I created this usb boot media via sudo command. Apple's finally got a support article : http://support.apple.com/en-au/HT201372 , so i was expecting it to be smooth sailing.