1. Format a “good” USB stick with the ext3 (not ext4) filesystem. This has to be done in a installed Linux system or while running a live Linux system from CD or a USB stick.
2. Insert your formatted USB stick and start up one of “my” Android-x86 systems (KitKat or Lollipop) from CD. In the slideshow below I’m installing AndEX (Lollipop 5.0.2) to my USB stick SanDisk Contour.
Watch this slideshow (showing the install process).
Android is a trademark of Google Inc.