(RaspberryPi2)ubuntu@localhost:~$ snappy list
Name        Date       Version Developer 
ubuntu-core 2015-12-03 75      ubuntu    
pi2         2015-11-30 0.16    canonical 
(RaspberryPi2)ubuntu@localhost:~$ sudo snappy update
Updating ubuntu-core (76)
Syncing boot files
Done
mkdir : no such file or directory