fdisk

sudo fdisk -l

Disk /dev/sda: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x9ec3b175

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      102400    7  HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2              13       91201   732466176    7  HPFS/NTFS
/dev/sda3           91201      182402   732567553    5  Extended
Partition 3 does not start on physical sector boundary.
/dev/sda5           91201       93633    19529728   83  Linux
/dev/sda6           93633       94605     7811072   82  Linux swap / Solaris
/dev/sda7           94605      182402   705224704   83  Linux

Disk /dev/sdb: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x48bcbbff

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1       30402   244197376    7  HPFS/NTFS