Recovering a lost partition

How to use TestDisk to recover lost partition
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Silverstone0212
Posts: 1
Joined: 21 Feb 2018, 08:41

Recovering a lost partition

#1 Post by Silverstone0212 » 21 Feb 2018, 09:28

Hello. I have a problem.
I made the rookie mistake of waiting until the last minute to back up my stuff from my 1TB external hard drive, which had recently started to act up.
Earlier, I used PhotoRec to try to recover my files from the "missing" partition, but it rewrote the file names as the program picks it up and it took a bit longer than I originally thought.
So, I thought of using TestDisk to do a "Quick" and "Deeper" scan for the partition, but the "Quick" scan did not find anything and the "Deeper" scan also took longer than I originally thought (and usually I am a patient person); the scan originally ran for about 3 days and it was still at 0%.
I am currently making a disk image that has been running for about 4 days now and it's almost at 6%, which is not as time consuming as the scans. I believe I had about 200GB on that hard drive. I really need to get some stuff off of that hard drive.
In case I need to reboot my computer, run a quick reboot that requires a reboot or try something else, is there a way to save my current progress and get back to it?

P.S. I have been getting a list of errors all over the place.
Errors:
  • ReadFile Data error (cyclic redundancy check).
  • ReadFile The request could not be performed because of an I/O device error.
  • ReadFile The device is not ready.
  • ReadFile The semaphore timeout period has expired.
Hard Drive: WD My Passport 0748
OS: Windows 10
------------------------------------------------------------------------------------------------------------------------------------------
Sat Feb 17 03:35:50 2018
Command line: TestDisk

TestDisk 7.1-WIP, Data Recovery Utility, February 2018
Christophe GRENIER <grenier@cgsecurity.org>
https://www.cgsecurity.org
OS: Windows 8 (9200)
Compiler: GCC 6.4, Cygwin32 2009.0
ext2fs lib: 1.43.1, ntfs lib: 10:0:0, reiserfs lib: none, ewf lib: 20140608, curses lib: ncurses 6.0
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sda)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdb)=200049647616
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdc)=1000170586112
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive0)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive1)=200049647616
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive2)=1000170586112
filewin32_getfilesize(\\.\PhysicalDrive3) GetFileSize err Incorrect function.

filewin32_setfilepointer(\\.\PhysicalDrive3) SetFilePointer err Incorrect function.

Warning: can't get size for \\.\PhysicalDrive3
filewin32_getfilesize(\\.\PhysicalDrive4) GetFileSize err Incorrect function.

filewin32_setfilepointer(\\.\PhysicalDrive4) SetFilePointer err Incorrect function.

Warning: can't get size for \\.\PhysicalDrive4
filewin32_getfilesize(\\.\PhysicalDrive5) GetFileSize err Incorrect function.

filewin32_setfilepointer(\\.\PhysicalDrive5) SetFilePointer err Incorrect function.

Warning: can't get size for \\.\PhysicalDrive5
filewin32_getfilesize(\\.\PhysicalDrive6) GetFileSize err Incorrect function.

filewin32_setfilepointer(\\.\PhysicalDrive6) SetFilePointer err Incorrect function.

Warning: can't get size for \\.\PhysicalDrive6
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\C:)=986919731200
filewin32_getfilesize(\\.\D:) GetFileSize err Incorrect function.

filewin32_setfilepointer(\\.\D:) SetFilePointer err Incorrect function.

Warning: can't get size for \\.\D:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\E:)=200047329280
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\F:)=0
Warning: can't get size for \\.\F:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\G:)=0
Warning: can't get size for \\.\G:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\H:)=0
Warning: can't get size for \\.\H:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\I:)=0
Warning: can't get size for \\.\I:
Hard disk list
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512 - WDC WD1002FAEX-00Z3A0, S/N:WD-WCATRC354873, FW:05.01D05
Disk /dev/sdb - 200 GB / 186 GiB - CHS 24321 255 63, sector size=512 - Maxtor 6B200M0, S/N:B420VANH, FW:BANC1B10
Disk /dev/sdc - 1000 GB / 931 GiB - CHS 121597 255 63, sector size=512 - WD My Passport 0748, S/N:WX61EC1LKW31, FW:1019

Partition table type defaults to Intel
Disk /dev/sdc - 1000 GB / 931 GiB - WD My Passport 0748
Partition table type: Intel
New options :
Dump : No
Align partition: Yes
Expert mode : No

Interface Advanced
Partition table type defaults to Intel
Disk /dev/sdc - 1000 GB / 931 GiB - WD My Passport 0748
Partition table type: None

Interface Advanced
file_pread(6,6,buffer,1953458050(121597/35/41)) ReadFile The request could not be performed because of an I/O device error.

P Unknown 0 0 1 121597 37 40 1953458176
Change partition type:
P NTFS 0 0 1 121597 37 40 1953458176
file_pread(6,237,buffer,19(0/0/20)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,20480(1/70/6)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,40960(2/140/11)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,61440(3/210/16)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,81920(5/25/21)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,102400(6/95/26)) ReadFile Data error (cyclic redundancy check).

file_pread(6,1,buffer,122880(7/165/31)) ReadFile The request could not be performed because of an I/O device error.

file_pread(6,1,buffer,143360(8/235/36)) ReadFile The device is not ready.

file_pread(6,1,buffer,163840(10/50/41)) ReadFile The device is not ready.

file_pread(6,1,buffer,184320(11/120/46)) ReadFile The request could not be performed because of an I/O device error.

file_pread(6,1,buffer,204800(12/190/51)) ReadFile The request could not be performed because of an I/O device error.

file_pread(6,1,buffer,225280(14/5/56)) ReadFile The semaphore timeout period has expired.

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cgrenier
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Re: Recovering a lost partition

#2 Post by cgrenier » 22 Feb 2018, 06:57

Your HDD is physically damaged. You can try to clone it to a new empty disk using ddrescue as described in https://www.cgsecurity.org/testdisk.pdf
Once it's done, remove the original disk and try to access your data from the clone.
If it doesn't work, contact a data recovery company.
Good luck

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