My data partition now is an unreadable "Raw" format

How to use TestDisk to recover lost partition
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Author
prady
Posts: 4
Joined: 04 Mar 2013, 16:22

My data partition now is an unreadable "Raw" format

#1 Post by prady »

Hi, my data partition (J:) suddenly lost all the file system information, and now is listed as a "Raw" partition.
Gestione disco.jpg
Gestione disco.jpg (124.14 KiB) Viewed 2815 times
TestDisk sees this mess:
Test disk struttura partizioni.png
Test disk struttura partizioni.png (40.62 KiB) Viewed 2815 times
I performed a quick search and a deeper one.
Please help me! :roll:

Mon Mar 4 15:56:24 2013
Command line: TestDisk

TestDisk 6.14-WIP, Data Recovery Utility, March 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Windows 7 (7601) SP1
Compiler: GCC 4.7, Cygwin 1007.17
Compilation date: 2013-03-02T11:22:18
ext2fs lib: 1.42.2, ntfs lib: 10:0:0, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sda)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive0)=1000204886016
filewin32_getfilesize(\\.\PhysicalDrive1) GetFileSize err Funzione non corretta.

filewin32_setfilepointer(\\.\PhysicalDrive1) SetFilePointer err Funzione non corretta.

Warning: can't get size for \\.\PhysicalDrive1
filewin32_getfilesize(\\.\PhysicalDrive2) GetFileSize err Funzione non corretta.

filewin32_setfilepointer(\\.\PhysicalDrive2) SetFilePointer err Funzione non corretta.

Warning: can't get size for \\.\PhysicalDrive2
filewin32_getfilesize(\\.\PhysicalDrive3) GetFileSize err Funzione non corretta.

filewin32_setfilepointer(\\.\PhysicalDrive3) SetFilePointer err Funzione non corretta.

Warning: can't get size for \\.\PhysicalDrive3
filewin32_getfilesize(\\.\PhysicalDrive4) GetFileSize err Funzione non corretta.

filewin32_setfilepointer(\\.\PhysicalDrive4) SetFilePointer err Funzione non corretta.

Warning: can't get size for \\.\PhysicalDrive4
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\C:)=76348042752
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\D:)=16106127360
filewin32_getfilesize(\\.\E:) GetFileSize err Funzione non corretta.

filewin32_setfilepointer(\\.\E:) SetFilePointer err Funzione non corretta.

Warning: can't get size for \\.\E:
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:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\J:)=907664162816
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\L:)=0
Warning: can't get size for \\.\L:
Hard disk list
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512 - ST31000528AS, S/N:2020202020202020202020205639325054315850, FW:CC44

Partition table type (auto): Intel
Disk /dev/sda - 1000 GB / 931 GiB - ST31000528AS
Partition table type: Intel

Analyse Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63
Geometry from i386 MBR: head=255 sector=63
FAT16 at 0/1/1
Info: size boot_sector 160587, partition 160587
FAT1 : 1-157
FAT2 : 158-314
start_rootdir : 315
Data : 347-160586
sectors : 160587
cluster_size : 4
no_of_cluster : 40060 (2 - 40061)
fat_length 157 calculated 157
NTFS at 10/18/9
NTFS at 1968/50/3
Info: size boot_sector 149117265, partition 149117271


test_FAT()
5 L FAT16 >32M 11250 107 58 121600 247 55 1772781568
sector_size 0
cluster_size 0
reserved 0
fats 0
dir_entries 0
sectors 0
media 00
fat_length 0
secs_track 0
heads 0
hidden 0
total_sect 0
check_part_i386 failed for partition type 06
get_geometry_from_list_part_aux head=255 nbr=2
get_geometry_from_list_part_aux head=8 nbr=1
get_geometry_from_list_part_aux head=16 nbr=1
get_geometry_from_list_part_aux head=32 nbr=1
get_geometry_from_list_part_aux head=64 nbr=1
get_geometry_from_list_part_aux head=128 nbr=1
get_geometry_from_list_part_aux head=240 nbr=1
get_geometry_from_list_part_aux head=255 nbr=2
Current partition structure:
1 P hid. FAT16 LBA 0 1 1 9 254 63 160587 [DellUtility]
2 P HPFS - NTFS 10 18 9 1968 50 2 31457280 [RECOVERY]
3 * HPFS - NTFS 1968 50 3 11250 80 53 149117271 [OS]
4 E extended LBA 11250 79 63 121601 0 1 1772783777
Space conflict between the following two partitions
3 * HPFS - NTFS 1968 50 3 11250 80 53 149117271 [OS]
4 E extended LBA 11250 79 63 121601 0 1 1772783777
Invalid FAT boot sector
5 L FAT16 >32M 11250 107 58 121600 247 55 1772781568
5 L FAT16 >32M 11250 107 58 121600 247 55 1772781568

search_part()
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63
FAT16 at 0/1/1
FAT1 : 1-157
FAT2 : 158-314
start_rootdir : 315
Data : 347-160586
sectors : 160587
cluster_size : 4
no_of_cluster : 40060 (2 - 40061)
fat_length 157 calculated 157

FAT16 at 0/1/1
FAT16 >32M 0 1 1 9 254 63 160587 [DellUtility]
FAT16, blocksize=2048, 82 MB / 78 MiB
FAT32 at 10/0/1
FAT1 : 32-8229
FAT2 : 8230-16427
start_rootdir : 16428 root cluster : 2
Data : 16428-67119531
sectors : 67119570
cluster_size : 64
no_of_cluster : 1048486 (2 - 1048487)
fat_length 8198 calculated 8192
FAT differs, FAT sectors=0-16/8198
set_FAT_info: name from BS used

FAT32 at 10/0/1
FAT32 LBA 10 0 1 4187 254 63 67119570 [ Unlabeled]
FAT32, blocksize=32768, 34 GB / 32 GiB
NTFS at 6724/238/43
heads/cylinder 16 (NTFS) != 255 (HD)
sect/track 2 (NTFS) != 63 (HD)
filesystem size 6174
sectors_per_cluster 1
mft_lcn 2058
mftmirr_lcn 5162
clusters_per_mft_record 2
clusters_per_index_record 8
HPFS - NTFS 6724 238 43 6725 81 42 6174 [Boot]
NTFS, blocksize=512, 3161 KB / 3087 KiB
check_part_i386 failed for partition type 06
FAT16 >32M 11250 107 58 121600 247 55 1772781568
file_pread(4,2,buffer,1953525760(121601/90/26)) lseek err Invalid argument
file_pread(4,1,buffer,1953525760(121601/90/26)) lseek err Invalid argument
file_pread(4,8,buffer,1953525248(121601/82/18)) lseek err Invalid argument
file_pread(4,1,buffer,1953525248(121601/82/18)) lseek err Invalid argument
file_pread(4,8,buffer,1953525376(121601/84/20)) lseek err Invalid argument
file_pread(4,8,buffer,1953525504(121601/86/22)) lseek err Invalid argument
file_pread(4,8,buffer,1953525632(121601/88/24)) lseek err Invalid argument
file_pread(4,7,buffer,1953525761(121601/90/27)) lseek err Invalid argument
file_pread(4,16,buffer,1953525760(121601/90/26)) lseek err Invalid argument
file_pread(4,3,buffer,1953525776(121601/90/42)) lseek err Invalid argument
file_pread(4,3,buffer,1953525823(121601/91/26)) lseek err Invalid argument
file_pread(4,8,buffer,1953525839(121601/91/42)) lseek err Invalid argument
file_pread(4,11,buffer,1953525886(121601/92/26)) lseek err Invalid argument
file_pread(4,2,buffer,1953527808(121601/122/58)) lseek err Invalid argument
get_geometry_from_list_part_aux head=255 nbr=4
get_geometry_from_list_part_aux head=8 nbr=1
get_geometry_from_list_part_aux head=16 nbr=1
get_geometry_from_list_part_aux head=32 nbr=1
get_geometry_from_list_part_aux head=64 nbr=1
get_geometry_from_list_part_aux head=128 nbr=1
get_geometry_from_list_part_aux head=240 nbr=1
get_geometry_from_list_part_aux head=255 nbr=4

Results
* FAT16 >32M 0 1 1 9 254 63 160587 [DellUtility]
FAT16, blocksize=2048, 82 MB / 78 MiB
P FAT32 LBA 10 0 1 4187 254 63 67119570 [ Unlabeled]
FAT32, blocksize=32768, 34 GB / 32 GiB
P HPFS - NTFS 6724 238 43 6725 113 44 8192 [Boot]
NTFS, blocksize=512, 4194 KB / 4096 KiB
L FAT16 >32M 11250 107 58 121600 247 55 1772781568
Change partition type:
L FAT16 >32M 11250 107 58 121600 247 55 1772781568
Change partition type:
L FAT16 >32M 11250 107 58 121600 247 55 1772781568
add_ext_part_i386: max
add_ext_part_i386: max

interface_write()
1 * FAT16 >32M 0 1 1 9 254 63 160587 [DellUtility]
2 P FAT32 LBA 10 0 1 4187 254 63 67119570 [ Unlabeled]
3 P HPFS - NTFS 6724 238 43 6725 113 44 8192 [Boot]
4 E extended LBA 6725 113 45 121601 57 56 1845479424
5 L FAT16 >32M 11250 107 58 121600 247 55 1772781568
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prady
Posts: 4
Joined: 04 Mar 2013, 16:22

Re: My data partition now is an unreadable "Raw" format

#2 Post by prady »

Please help me! :roll:
Anyone? :cry:
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User avatar
Fiona
Posts: 2835
Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: My data partition now is an unreadable "Raw" format

#3 Post by Fiona »

There ist a FAT16-partition and it probably, that's wrong?
Did you create a new partition?
If not, a boot sector diagnose on your FAT16-partition would be recommended.
You can change the partition type under the menu Advanced and Type.
Do you know your previous file system, has it been FAT32LBA or NTFS?
Pleaswe let me know.
Instructions will follow.

Fiona
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prady
Posts: 4
Joined: 04 Mar 2013, 16:22

Re: My data partition now is an unreadable "Raw" format

#4 Post by prady »

Thank you Fiona!
As far as I remember, the structure was that one shown in the first image, and the J: partition was formatted in NTFS.
When I bought my Dell PC, the hard Drive was already partitioned in C: and D:, plus that hidden partition I believe. Then I created J:.
A couple of weeks ago I squeezed J: and stretched C: with partition wizard, but I got an error at the end of the process and my PC crashed, but everything seemed fine after a restart.
And now there is this mess...
P.s. I've just created an exact copy of the Hard Drive with acronis true image, so I can perform all the tests without any worry.
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prady
Posts: 4
Joined: 04 Mar 2013, 16:22

Re: My data partition now is an unreadable "Raw" format

#5 Post by prady »

I'm trying to recover my files using a data recovery SW, and it seems that it detects a NTFS partition.
Data recovery.png
Data recovery.png (22.59 KiB) Viewed 2770 times
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