Howdy.
I have been using raspbian on my new pi I got for xmas. It was not until today I saw that the file partition was tiny, and didn't extend to fill the SD card. I used GParted to expand the filesystem partition up to its max. The operation was successful but after that my pi was unable to boot. How can I expand the filesystem partition without this annoying problem of not booting??? I am using a 16gb SD card with Jessie.