How to properly boot Cloudready ver.76.4.70 image (Chrome OS) on ASUS 1215N - Bios version: 0902
When booting from USB to install CloudReady, be sure to interrupt startup by pressing the "Esc" button to access the one-time boot menu. Using BIOS boot order will corrupt your installer. Part 1 and Part 2 show booth situations. If your usb flash drive get corrupted, you must to remake it bootable.