It is about Mavericks on internal drive. All data (os + all apps + user data + user files + others) consume no more than one tenth of drive storage volume. There is also external usb drive available, completely empty. It' capacity is nearly two third of internal drive capacity. An attempt was made to clone internal drive to the external usb using Disk Utility in recovery mode. The attempt failed with error message destination was too small. Is there any chance - using Mavericks on-board tools - to clone os x startup drive (mac internal) to a external usb drive of smaller capacity but much enough capacity to store present data?