You can access the device via ssh and see what dmesg spits out if you put the card in. You could also try backing up the sd card and make your hanlin format it. (ssh and mkfs.vfat /dev/mmc{something}) Did i mention backup? Good luck
http://openinkpot.org/wiki/Documenta...tworking#Linux
http://openinkpot.org/wiki/Documentation/ConnectViaSSH