root@am335x-evm:/media/sda1# ls
root@am335x-evm:/media/sda1# cd ..
root@am335x-evm:/media# ls
card       hdd        mmcblk0p1  net        realroot   union
cf         mmc1       mmcblk0p2  ram        sda1
root@am335x-evm:/media# mount /dev/sda1 /media/sda1
mount: mounting /dev/sda1 on /media/sda1 failed: Invalid argument
root@am335x-evm:/media#