How to create bootable OS X Mavericks install media on USB/Disk Volume
Apple's Mavericks installer now comes with a tool to make a bootable installer. Run the following command to create an installer disk.
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Mavericks.app --nointeraction
for more details on this please refer to http://support.apple.com/kb/HT5856