Hey guys! So i wanted to make a backup of my 10.9 install before i go installing 10.10 on my hard disk. So what i have done is this: 1.) Bought a 16GB USB, Installed 10.10 here. 2.) Set it up, updated. 3.) Ran Disk Utility to make an encrypted backup of my internal hard disk (Macintosh HD) Error here! - "Inappropriate IOCTL for device" I cant seem to create any images whatsoever, Macintosh HD is error free, SMART is verified and the permissions are fine so im a little lost as to whats going on. Any information and assistance here would be appreciated!