Disk /dev/sda: 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: 0x9d4b2f0e

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       30402   244197528+  42  SFS

Disk /dev/sdc: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 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: 0x00087c7d

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       38167   306569216   83  Linux
/dev/sdc2           38167       38914     5999617    5  Extended
/dev/sdc5           38167       38914     5999616   82  Linux swap / Solaris

Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 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: 0x444a520d

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      243202  1953513528+  42  SFS

Disk /dev/md0: 2000.4 GB, 2000396746752 bytes
2 heads, 4 sectors/track, 488378112 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0x6e697373

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

    Device Boot      Start         End      Blocks   Id  System
/dev/md0p1   ?   242033675   471535727   918008208   4f  QNX4.x 3rd part
Partition 1 does not end on cylinder boundary.
Partition 1 does not start on physical sector boundary.
/dev/md0p2   ?   239731010   307785647   272218546+  73  Unknown
Partition 2 does not end on cylinder boundary.
Partition 2 does not start on physical sector boundary.
/dev/md0p3   ?   227321990   295343882   272087568   2b  Unknown
Partition 3 does not end on cylinder boundary.
Partition 3 does not start on physical sector boundary.
/dev/md0p4   ?   355565570   355572441       27487   61  SpeedStor
Partition 4 does not end on cylinder boundary.
Partition 4 does not start on physical sector boundary.

Partition table entries are not in disk order