juiceme,

Data Storage being filled usually is a consequence of the userfs partition being filled from previous experience here... Yes there have been a couple of people with rootfs being fulled but most apps put their heavy content onto /opt hence userfs is almost always the first partition to be filled.

This is further compounded by emails, nitdroid, easy debian etc all using up space on userfs so I think the OP needs to check his userfs for space first instead of increasing rootfs while leaving userfs to just 2.1GB...

Lastly, if rootfs is filled up most probably userfs is filled too since if so many apps are being installed their data would have filled userfs too...