I have connected Samsung 320GB USB disk drive 850mA, 5V to USB HUB LogiLink UA0085 USB2.0 powerd 2A,5V PS. Then, i boot my Raspberry Pi, on boot screen i have can read this: end_request: I/O error, dev mmcblk0, sector 139698 mmcblk0: error =110 transferring data, sector 139698 nr 256 ,end response r...