Comment 7 for bug 367484

I figured out a way to access the SD device... copy and paste this as root...

rmmod option
rmmod usbserial
rmmod usb_storage
sleep 2
modprobe option
sleep 2
modprobe usb-storage

if that doesn't work, then try it a few more times. it eventually does.
Also, i've posted a bug with the kernel developers, the are working on a fix. here is the bug...

http://bugzilla.kernel.org/show_bug.cgi?id=13496

can somebody try the patch that the developer has posted? I don't have time at the moment.

good luck!