fdisk

mint@mint ~ $ sudo fdisk -l

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0xf0402981

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848  1953521663   976657408    7  HPFS/NTFS/exFAT

Disk /dev/sdb: 1010 MB, 1010827264 bytes
32 heads, 61 sectors/track, 1011 cylinders, total 1974272 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: 0x0009e87d

This doesn't look like a partition table
Probably you selected the wrong device.

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   ?  3223366752  3470046675   123339962   f4  SpeedStor
/dev/sdb2   ?   378192737   710426324   166116794   10  OPUS
/dev/sdb3   ?   225603442   225603451           5   74  Unknown

Partition table entries are not in disk order