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How to restore .dd disk image file? TestDisk

Tags:
  • Hard Drives
  • Storage
Last response: in Storage
March 7, 2012 7:13:54 PM

Hello Everyone, I posted this on the TestDisk forum figured I have a better chance of getting my answer here at tom's.

I have a Seagate Barracuda ST3000DM01 3TB hard drive that used to be in an external enclosure (Seagate External Expansion drive 3TB). I had a pretty bad power-outage in my neighborhood when I was recording TV onto my drive prior. My Windows 7 system could no longer open the hard drive and it wants to format it, I suspected bad sector(s) and corrupted partition table may be the cause of it, so here is what I did.

(1)Got myself a 450w battery-backup surge protector

(2)Used TestDisk to find the lost partition, and found it YAY (Using GPT partition table type, an NTFS labled backup drive), deleted the partition table on the drive, replaced with the one found with TestDisk, no luck, Windows 7 still wants to format it.

(3)Tried using PhotoRec to recover the files, but the PhotoRec process will become unresponsive right about reading/recovering 50% sectors of I have. Tried two times and arriving to the same result. Suspected a bad sectors is causing the hang. Managed to salvage about 140GB of data out of 396GB of original data.

(4)This is when I take apart the external enclose and plug the bare-bone drive into my SATA slot. The system recognizes the drive now as an internal drive ST3000DM01, not a usb external drive.

(5)Used TestDisk to create an image of the NTFS partition found and put it onto the other working hard drive. The image is a .dd file and it holds 396GB, pretty sure I have around 300-ish GB of data on this disk so I am convinced that the image produced is the complete hard drive image.

(6)Using SeaTools (by Seagate) for Windows, the drive failed all tests even after the Fix->All Long, it suggested using DOS version of SeaTools to look into the LBAs and attempt to fix the bad sector. Strangely, under the DOS version the drive passed all tests with no bad sectors. Not even passed with repair, just passed without errors. Maybe the difference is due to Intel RAID Controller vs. just plain Intel ICH8/9/10 controller. I have a RAID 0 configuration, no RAID on this drive because it was on a USB and the usb controller is different from RAID.

(6)Because PhotoRec couldn't get pass a certain sector due to some unknown reason, I decided to low-level format this drive under DOS using SeaTools. The Full erase process took 14 hours. After that I formatted the entire drive in Windows. Used the Check disk tool, found no sector errors. Used SeaTools, the drive failed the self-short test but passed short and long generic tests with 3 passes, so funky results. Seems to rule out my bad-sector theory but hey, who knows.

--------------------------------------------NOW HERE IS THE QUESTION (?)----------------------------------------------------
Actually, it all boils down to one questions: How do I restore the disk image file .dd to my Seagate hard drive? What are the steps?

Couldn't find the steps anywhere. For TestDisk, Is the definition of image file different from what i think it is?

This is my first time trying to recover data using TestDisk, any help is appreciated.

More about : restore disk image file testdisk

a c 84 G Storage
March 7, 2012 8:08:54 PM

I would be RMA'ing that drive.
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a c 121 G Storage
March 7, 2012 8:31:29 PM

http://download.cnet.com/Recuva/3000-2242_4-10753287.ht...

I recently formatted the wrong drive and was deciding between Recuva and Test Disk as to which one to use and ended up using Recuva and it found all of my files and then all of the previous files from a few years ago. It was fairly easy to use and once I switched to the tree view it showed all of the files in a simple form even I could understand. Then just highlight and hit the recover button and select the destination.
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March 7, 2012 10:12:04 PM

anonymous1 said:
I would be RMA'ing that drive.


Thanks for the response. Well, The question isn't fixing the Seagate drive or get a replacement, the question is how to restore the .dd disk image's data to any hard drive in general.


Maybe someone who's familiar with TestDisk can help me out here, please :)  Thank You.
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March 7, 2012 10:17:36 PM

inzone said:
http://download.cnet.com/Recuva/3000-2242_4-10753287.ht...

I recently formatted the wrong drive and was deciding between Recuva and Test Disk as to which one to use and ended up using Recuva and it found all of my files and then all of the previous files from a few years ago. It was fairly easy to use and once I switched to the tree view it showed all of the files in a simple form even I could understand. Then just highlight and hit the recover button and select the destination.


I'm pretty sure that there is nothing left on the disk now since I full erased it with zeros, took 14 hours. However, I did try Recuva before getting to know about TestDisk. The Recuva process stuck right at the start at 0% for over 2 hours.
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March 8, 2012 12:05:36 AM

Issue Update: Got a good reply off of TestDisk's forum

Please follow http://forum.cgsecurity.org/phpBB3/how-to-restore-dd-di...

The post shows how to mount .dd image files with TestDisk & Photorec. I was able to use photorec to recover the rest of the files that previously wasn't able to due to bad boot sectors on the Seagate Drive.
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September 26, 2012 12:49:35 AM

Hi lamchiheng, I have had the same issue too

U need to programs to accomplish what u want here:

Step 1

1. Mount Image Pro v5
2. Photorec

Note: u need to get a trial license for Mount Image pro and a second Hard disk for the restoration process(u cant use the old Hard disk for the new restoration)

Step 2
Mount the image.dd in Mount Image pro v5, this will open as a virtual drive on drives section under the computer menu in windows OS
Then use the windows explorer to copy your data to a new location.

If the virtual drive doesn't open then proceed to step 3

Step 3

Extract photorec (this program is free and u don't need to install anything)
follow the on screen instructions until u will see the list of drives attached to your system
select the image that was added using Mount Image pro v5
confirm the location for restoration by pressing C on your keyboard
press return / Enter to begin restoring

and finally u will have yo self happy finally.

Enjoy: Best Regards Trans
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October 30, 2012 2:03:05 PM

Hi Transkim,

had a similar issue and thanks for the instructions, finally am now recovering all the files from the corrupted MFT partition from a recovered image.

best regards
rdbhasa

transkim said:
Hi lamchiheng, I have had the same issue too

U need to programs to accomplish what u want here:

Step 1

1. Mount Image Pro v5
2. Photorec

Note: u need to get a trial license for Mount Image pro and a second Hard disk for the restoration process(u cant use the old Hard disk for the new restoration)

Step 2
Mount the image.dd in Mount Image pro v5, this will open as a virtual drive on drives section under the computer menu in windows OS
Then use the windows explorer to copy your data to a new location.

If the virtual drive doesn't open then proceed to step 3

Step 3

Extract photorec (this program is free and u don't need to install anything)
follow the on screen instructions until u will see the list of drives attached to your system
select the image that was added using Mount Image pro v5
confirm the location for restoration by pressing C on your keyboard
press return / Enter to begin restoring

and finally u will have yo self happy finally.

Enjoy: Best Regards Trans

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November 22, 2012 7:50:44 AM

Thanks rdbhasa, its great your recovered
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