ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sdb: 4029 MB, 4029677568 bytes
124 heads, 62 sectors/track, 1023 cylinders, total 7870464 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004c423

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          62     7864823     3932381    c  W95 FAT32 (LBA)