My usb hub is a Rosewill 10 port 2.0 hub model RHB-520. Honestly I think it has something to do with my new computer with the sd card reader I bought. and the sd card itself. when i first got both of them they didnt want to work with my new pc cause i am using a 3.0 usb port and windows 8.1  i have a laptop that runs windows 7 and it seems to format fine on that...maybe ill give that a try. reformat and install raspbian and try again. if it works ill let you know. how do i install bfgminer and cgminer on raspbian? and configure it for bitfurys. i wish i could just use the windows drivers lol