Chrome OS devices

Enable developer mode on laptop or tablet with keyboard

 * 1) Turn off the device.
 * 2) Press  +  +.
 * 3) Press  +.
 * 4) Confirm switch to developer mode.

After that you have to press +  to boot from internal storage.

Enable developer mode on tablet without keyboard

 * 1) Press  and  buttons at the same time and boot the device.
 * 2) You should see prompt saying Please insert a recovery USB stick with a helpful image showing USB port that doesn't exist on Duet.
 * 3) Press  button, now you should see a menu with options like "Show Debug Info", "Cancel", "Power Off", and "Language".
 * 4) Press  and  buttons at the same time. Option "Show Debug Info" will be replaced with "Confirm Disabling OS Verification".
 * 5) Select this option by using volume buttons and confirm by pressing.

Enable booting from external storage

 * 1) Boot into Chrome OS.
 * 2) Open console:  +  +.
 * 3) Enter   in console.
 * 4) Enter   in shell.

After that you can boot from external storage (SD or USB) with +.

It might be necessary to reseat the storage (SD or USB) between bootup and triggering the boot from external storage.

Installation to SD card or USB storage
Follow Pmbootstrap page, do a SD card installation.

Installation to eMMC

 * 1) Install pmOS to SD card and boot it.
 * 2) Boot your mobile device from the SD card (or USB stick)
 * 3) Install pmbootstrap to SD card (or USB stick) with
 * 4) Figure out which device your eMMC is located on with
 * 5) Use
 * 6) * Make sure your eMMC is, otherwise replace it with correct device.
 * 7) * Check other  arguments, you may find something useful.