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I am unable to see a 750GB drive that is attached to my 12.04 machine using a USB 2.0 drive mate. The drive was pulled out of a Windows 7 machine and I am just trying to get all of the information off of it so I can wipe it and start over.

fdisk -l shows

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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: 0x0000183e

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048   480094207   240046080   83  Linux
/dev/sda2       480096254   488396799     4150273    5  Extended
/dev/sda5       480096256   488396799     4150272   82  Linux swap / Solaris
Note: sector size is 4096 (not 512)

Disk /dev/sdb: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 11400 cylinders, total 183143646 sectors
Units = sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x07f2837e

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1              63      208844      835128   de  Dell Utility
/dev/sdb2   *      212992    41172991   163840000    7  HPFS/NTFS/exFAT
/dev/sdb3        41172992  1465147119  1400929216    7  HPFS/NTFS/exFAT

sudo blkid
sudo blkid
/dev/sda1: UUID="dd81fbe4-0659-4eb8-9ef2-f4851ed6ff3e" TYPE="ext4" 
/dev/sda5: UUID="1cb1a836-7896-4537-9e31-2cacc1a9250b" TYPE="swap" 
/dev/sr0: LABEL="Monsters, Inc." TYPE="udf" 

sudo mount  -t ntfs /dev/sdb /media/windows
NTFS signature is missing.
Failed to mount '/dev/sdb': Invalid argument
The device '/dev/sdb' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

I am unsure as to why this is not working any help would be greatly appreciated.

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2 Answers

up vote 2 down vote accepted

You should likely use:

sudo mount -t ntfs /dev/sdb2 /media/windows

Note the 2 after sdb. You were trying to mount the whole disk instead of the partition.

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Note that the error message was telling you this. –  Javier Rivera Aug 24 '12 at 16:08
    
I have tried all of them sdb1, 2, 3, and just sdb sudo mount -t ntfs /dev/sdb1 /media/windows [sudo] password for mraganpbr: NTFS signature is missing. Failed to mount '/dev/sdb1': Invalid argument The device '/dev/sdb1' doesn't seem to have a valid NTFS. Maybe the wrong device is used? Or the whole disk instead of a partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around? –  Mraganpbr Aug 24 '12 at 16:24
    
Could the disk be corrupted? –  Javier Rivera Aug 24 '12 at 17:02
    
it is possible. was just hoping to salvage something –  Mraganpbr Aug 24 '12 at 17:06
    
You should probably check the disk in a Windows system to be sure. Windows support NTFS better than linux. –  Javier Rivera Aug 24 '12 at 17:10
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using two utilities photorec and testdisk I found out that the partitions were fully corrupted. I was able to pull all of the files off. Thanks for the help

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