Sorry my late answer:
Dear ukiuki, with fdisk -l I have a list from my hard disk, f.e. (in spanish): Dispositivo Inicio Fin Bloques Id Sistema.......
/dev/sda1 * 63 149838254 74919096 83 Linux
/dev/sda2 149838255 156296384 3229065 5 Extendida
/dev/sda5 149838318 156296384 3229033+ 82 Linux swap / Solaris
With Disk Utility can you see like a Hard Disk, the model (La Cie FastKey USB 3.0), the serial number, the number of the firmware, that is dev/sdb, USB 480 Mb/s and other information, but you can't see files and so on. Is't imposible to give format, partition or read-write.
I have try to mount with fstab but nothing (is possible that I have make a mistake too).