after using rpi-update kernel version is #749 for Pi B 2 but #1 for Pi B plus. `Linux Pi-B-2 3.18.6-v7+ #749 SMP PREEMPT Sat Feb 7 18:15:06 GMT 2015 armv7l` `Linux Pi-B-Plus 3.18.6+ #1 PREEMPT Sat Feb 7 18:11:00 GMT 2015 armv6l GNU/Linux`
