How to recover ntfs partition

Hi everyone,

I have an external drive, size 1TB with a ntfs partition on it. Some linux tools told me, that the size of the drive is 2TB. I used to GParted to resize it. Everything looked fine and the drive was still accessible. After writing something on the drive, the drive became inaccessible both under Ubuntu and Windows 7.

I tried to rewrite the MBR table with fdisk to have it set back to 1TB, but I dont really know, what sector size would be correct.

I wanted to use chkdsk to repair the drive, but unfortunately the drive is recognized as a RAW drive.

Can someone help me to rewrite the MBR table with fdisk or suggest a tool which can repair the MBR?


Some output that may be helpful:

fdisk after I rewrote the MBR

Code:

$ sudo fdisk -l /dev/sde

Disk /dev/sde: 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: 0x44fdfe06

   Device Boot      Start         End      Blocks   Id  System
/dev/sde1              63  1953525166   976762552    7  HPFS/NTFS/exFAT

parted output:

Code:

$ sudo parted /dev/sde unit s print
Model: WD 10EACS External (scsi)
Disk /dev/sde: 1953525168s
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start  End          Size         Type     File system  Flags
 1      63s    1953525166s  1953525104s  primary

dmesg output when attaching the drive (in linux):

Code:

[ 7792.905572] usb 1-1.2: new high-speed USB device number 5 using ehci-pci
[ 7792.998930] usb 1-1.2: New USB device found, idVendor=1058, idProduct=1100
[ 7792.998932] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 7792.998934] usb 1-1.2: Product: My Book         
[ 7792.998935] usb 1-1.2: Manufacturer: Western Digital 
[ 7792.998936] usb 1-1.2: SerialNumber: 57442D574341534A30393431333733
[ 7792.999363] scsi7 : usb-storage 1-1.2:1.0
[ 7793.998087] scsi 7:0:0:0: Direct-Access     WD       10EACS External  1.65 PQ: 0 ANSI: 4
[ 7793.999008] sd 7:0:0:0: Attached scsi generic sg5 type 0
[ 7794.001221] sd 7:0:0:0: [sde] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
[ 7794.002257] sd 7:0:0:0: [sde] Write Protect is off
[ 7794.002262] sd 7:0:0:0: [sde] Mode Sense: 21 00 00 00
[ 7794.003385] sd 7:0:0:0: [sde] No Caching mode page found
[ 7794.003388] sd 7:0:0:0: [sde] Assuming drive cache: write through
[ 7794.006132] sd 7:0:0:0: [sde] No Caching mode page found
[ 7794.006136] sd 7:0:0:0: [sde] Assuming drive cache: write through
[ 7794.023054]  sde: sde1
[ 7794.026132] sd 7:0:0:0: [sde] No Caching mode page found
[ 7794.026137] sd 7:0:0:0: [sde] Assuming drive cache: write through
[ 7794.026141] sd 7:0:0:0: [sde] Attached SCSI disk

Kaktussoft said:

I tried to rewrite the MBR table

MBR consists of:

• disk signature
• partition table
• master boot code (to boot from partition). Small piece of bootstapr code.

Why rewrite MBR and which part of it? Rewrite with zeros's?

Rewrite the partition table, so the information is correct according to the actual size of the hard drive. And because I was so stupid to belive the testdisk and fdisk, that the hard drive is 2TB big although I bought it as a 1TB drive and thus resized it with GParted.

And because there is data on it, that I havent backed up.

Kaktussoft said:

fdisk -land gparted
dispaly that it's a 1TB disk. Only 1 partition on disk, starting at sector 63 (quite normal in windows). ID=7 so NTFS.

They did before I resized and afterwards rewrote the MBR partition table with fdisk.

Kaktussoft said:

You are sure you messed up the MBR only (first 512bytes of disk)?

Not completely, but I hope not.


Will test partition wizard

Picture of partition wizard overview:

Kaktussoft said:

disksignature overwritten.... no problem.
master boot code overwritten... no problem.
You did override the partition table as well. Don't know what you did modify.

Modified the sector size.

Kaktussoft said:

Anyway it's sector 0 of disk. tell me what Partition Wizard says.

Partition Wizard: How to perform lost partition recovery and deleted partition recovery under Windows? Partition Recovery Help. Do "full disk" ->quick scan. Does it find a large partition starting at sector 63? You can recover it. Make it PRIMARY using Partition Wizard as well. Since it was the only partition on that disk, mark it ACTIVE as well

Partition wizard finds the partition. But I'm unsure if the "Used Size" is a problem: