Yosemite:
/System/Library/LaunchDaemons/com.apple.discoveryd.plist
Categories
Yosemite:
/System/Library/LaunchDaemons/com.apple.discoveryd.plist
1. GUID Partition USB Disk
2. Assuming the downloaded install is in /Applications:
sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia –volume /Volumes/Untitled –applicationpath /Applications/Install OS X Yosemite.app –nointeraction