How to make a bootable OS X 10.10 Yosemite install drive
Use createinstallmedia
Starting with Mavericks, hidden inside the OS X installer is a Unix program called createinstallmedia, provided by Apple specifically for creating a bootable installer drive. If you’re comfortable using Terminal, createinstallmedia is a relatively simple tool to use.
Just copy this command into the terminal and press return and your system password.
sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia −−volume /Volumes/Untitled −−applicationpath /Applications/Install\ OS\ X\ Yosemite.app −−nointeraction
Thanks to: macworld.com
ps. Don’t forget to set the system time and date correct in the terminal!
The format is: date {month}{day}{hour}{minute}{year}
For example: jan 1st 14:22, 2015 becomes:
date 0101142215
Thanks to: bensmann.no
