Yes, of course. The default partition layout of N9 makes vague sense on a 16G device, bun on a 64G device it is fairly silly. How to do it;boot to ubiboot maintanance console back up your existing partitions into tar files and ship off the device use fdisk to repartition the device however you want it format your new partitions restore your data to device fix the partition layout for booting in ubiboot.conf profit