Оригинальный сообщение: ian cheong ,
JetFlash is preformatted with MBR. So use Disk Utility to erase and format the device with GPT (GUID Partition Table). Carbon Copy Cloner works great for cloning. Also fixes the recovery partition. Or can clone for free with unix tools. BlackMagic Disk Speed Test says write up to 620MB/sec; write about 720MB/sec.