Booting from USB

[Didier B]

With a RPI 3 model B +, it is very easy to set OP to boot from an USB volume using Noobs and the following steps :

1. Format (SDformater) the USB volume whatever it is with a single FAT32 partition ;
   
2. Copy the content of the Noobs  OP V1.0 directory to this partition ;
   
3. Check there is no SD in the Pi, connect your USB  volume and put electrons !
   
4. install OP 1.0, set your locale (keyboard !), then  upgrade (OP 1.2, OCPN and plugins), and you will be done !
   

With a RPI 2 B V1.2, a 3B (not +) you have to apply this procedure   previously.
Note than for an RPi2 not V1.2, boot from USB seems NOT possible.