Help me to recover 3TB HD strange problem.

How to use TestDisk to recover lost partition
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Fiona
Posts: 2839
Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: Help me to recover 3TB HD strange problem.

#11 Postby Fiona » 19 May 2012, 14:06

I've no idea why users are going to use the 64bit version?
There is a description that it's only intended if WOW64 is lacking as some features are missing!
Despite that a lot of users are gonna use the 64bit-version.

Please use the 32 bit version!

On your last screen check type and press enter.
Add your previous file system (I assume NTFS?).
Press enter to confirm and leave the menu.
Now you'll see a menu Boot.
Check the menu Boot and press enter.
If a menu list is available, pleas check it and press enter to list your files.
Did you see your files or an error message?

If the menu List is not available, please check Rebuild BS and press enter.
The run shouldn't take as long.
If it lasts ages, please let me know.
If it was succesful, you'll see the menu List.
Please check it and press enter to list your files.
Please let me know.

Fiona

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samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#12 Postby samsagaz » 19 May 2012, 17:11

Oh, then will use the 32 bit version.

Last partition was GPT!, i created the partition with windows 7, then copy a lot of files and after reboot the HD was detected but without partitions.

Previous FS was GPT what i do then?

i tried what you say and get an error.

samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#13 Postby samsagaz » 19 May 2012, 17:16

Filesystem seems damaged is the error.

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Fiona
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Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: Help me to recover 3TB HD strange problem.

#14 Postby Fiona » 19 May 2012, 21:28

Did you use the 32bit-version of TestDisk?
Please let me know, how did you create your current GPT-Partition?
Has it been exactly the same way like before, when you created your partitions for the first time?
TestDisk will only work, if the start and the size of your partition fits exactly to your previous partition.
I've only seen your partition MSData.
Normally windows creates 2 partitions.
One is called MSR and the second partition is MSData.
Infos about GPTt;
http://msdn.microsoft.com/en-us/library ... 63525.aspx
There could be another one called ESP but it's only if you used EFI.
So at the beginning of the disk, there should be free space or an MSR-Partition.
That MSR partition is not as important at the moment, but the start and size of your MSData-Partition.
Please let me know, did you use gdisk in any way to recreate a GUID-partition or only for diagnose purposes?
Only creating a partition doesn't damage any data, because it's only available in your GUID partition table.
As long as you don't format it, it will not write any boot sector nor touch any data.

samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#15 Postby samsagaz » 19 May 2012, 22:08

thanks too much fiona.

Im using 32 bits version now. First time i created it using windows disk management.

Then after boot and dont get any partition i make it again using gpart.

So i can delete the partition and create it again with Windows Disk Managment? Im scared abt to loose any way to recover some of the files after delete the partition.


Wich tool recommend me to remove the partition? Gpart?

THanks in advance.

samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#16 Postby samsagaz » 19 May 2012, 22:25

well my last try was deleting the partition using gpart, then create it again using windows disk managment (without format), then run testdisk_win.exe, select the Disk, Select EFI GPT, Advanced, Type, MS Data, NTFS, then select List and get the error Filesystem seems damaged.


If after create the partition want to access the HD an message told me that need to format the HD.

samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#17 Postby samsagaz » 20 May 2012, 04:09

Trying to rebuild the BS but dont stop.

Screenshot

Image

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Fiona
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Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: Help me to recover 3TB HD strange problem.

#18 Postby Fiona » 20 May 2012, 09:45

In rare cases it was helpful.
But normally it indicates that the file system is damaged.
But it's absolutely important to catch exactly the same start and size as your previous situation was.
If you're one sector off the mark, TestDisk wouldn't find your file system anymore.

Fiona

samsagaz
Posts: 17
Joined: 17 May 2012, 23:58

Re: Help me to recover 3TB HD strange problem.

#19 Postby samsagaz » 20 May 2012, 16:57

Ok, lookks like something happend to this disk. Impossible to recover the right partition files. btw, someone know why photorec recover just the first files OK (8-9) and the other with wrong EOF? all the files recovered are corrupt

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Fiona
Posts: 2839
Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: Help me to recover 3TB HD strange problem.

#20 Postby Fiona » 20 May 2012, 17:21

Please upload a screen shot from your disk management console!
I'd like to check wether your disk is GPT or basic!
If PhotoRec only recovers corrupted files, please have a try tu test a trial of commercial datarecovery software.
In this case, to get an overview about your files, folders and filenames, would it be possible to scan your disk with a trial of Restorer Ultimate?
Don't use File Search but a RAW scan.
This is only intended to get an overview about your files!
TestDisk doesn't help if file system and files are corrupt.
That's why I'd like to know, before we do another effort, is your file system damaged or du you see all your files?

Fiona


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