If I am upgrading the SD Card to the new Firmware I get this error:

root@raspberrypi:~# cgminer -T
[2014-04-25 17:31:13] Started cgminer 4.3.0
[2014-04-25 17:31:13] Failed to write to fdesc 4: Input/output error
[2014-04-25 17:31:13] No CoinCrafd Desk backplane detected.
[2014-04-25 17:31:13] Failed to write to fdesc 5: Input/output error
[2014-04-25 17:31:13] All devices disabled, cannot mine!

Any idea?