I recently purchased an 8GB flash drive in an attempt to create a bootable install disk for Mavericks. I've attempted several times to format it via Terminal & Disk Maker X but it keeps failing. I've been using this prompt: sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction The message from terminal reads: In Disk Maker the disk keeps ejecting randomly without warning. I've formatted the disk with Disk Utility to mac os x (journaled) each time as well. Any suggestions?