Toshiba 1tb- bit confused

Using TestDisk to repair the filesystem
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Author
massey
Posts: 1
Joined: 28 Apr 2013, 14:14

Toshiba 1tb- bit confused

#1 Post by massey » 28 Apr 2013, 14:38

Ok, so i have been at this for a couple of days and tried searching the boards as much as possible before posting, but i am feeling a little lost.
mac osx 10.8.3, toshiba 1tb external drive (its been nothing but trouble)

Code: Select all

Sun Apr 28 14:23:45 2013
Command line: TestDisk

TestDisk 6.14-WIP, Data Recovery Utility, April 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Darwin, kernel 12.3.0 (Darwin Kernel Version 12.3.0: Sun Jan  6 22:37:10 PST 2013; root:xnu-2050.2
Compiler: GCC 4.0
Compilation date: 2013-04-22T08:35:56
ext2fs lib: 1.41.8, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504
Hard disk list
Disk /dev/disk0 - 500 GB / 465 GiB - 976773168 sectors (RO), sector size=512
Disk /dev/disk1 - 2000 GB / 1863 GiB - 3907029167 sectors (RO), sector size=512
Disk /dev/disk2 - 1000 GB / 931 GiB - 1953525168 sectors, sector size=512
Disk /dev/rdisk0 - 500 GB / 465 GiB - 976773168 sectors (RO), sector size=512
Disk /dev/rdisk1 - 2000 GB / 1863 GiB - 3907029167 sectors (RO), sector size=512
Disk /dev/rdisk2 - 1000 GB / 931 GiB - 1953525168 sectors, sector size=512

Partition table type (auto): EFI GPT
Disk /dev/rdisk2 - 1000 GB / 931 GiB
Partition table type: EFI GPT

Analyse Disk /dev/rdisk2 - 1000 GB / 931 GiB - 1953525168 sectors
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=1953536511 (expected 1953525167)
hdr_lba_start=34
hdr_lba_end=1953536478
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
Current partition structure:
 1 P EFI System                    40     409639     409600
 2 P Mac HFS                   409640 1953262983 1952853344

search_part()
Disk /dev/rdisk2 - 1000 GB / 931 GiB - 1953525168 sectors
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 40/0/1
FAT1 : 32-3182
FAT2 : 3183-6333
start_rootdir : 6334 root cluster : 2
Data : 6334-409599
sectors : 409600
cluster_size : 1
no_of_cluster : 403266 (2 - 403267)
fat_length 3151 calculated 3151
heads/cylinder 16 (FAT) != 1 (HD)
sect/track 32 (FAT) != 1 (HD)

FAT32 at 40/0/1
     EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB

HFS+ magic value at 409640/0/1
part_size 1952853344
     Mac HFS                   409640 1953262983 1952853344
     HFS+ blocksize=4096, 999 GB / 931 GiB
Search for partition aborted

Results
   P EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
   P Mac HFS                   409640 1953262983 1952853344
     HFS+ blocksize=4096, 999 GB / 931 GiB

interface_write()
 1 P EFI System                    40     409639     409600 [EFI]
 2 P Mac HFS                   409640 1953262983 1952853344

search_part()
Disk /dev/rdisk2 - 1000 GB / 931 GiB - 1953525168 sectors
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 40/0/1
FAT1 : 32-3182
FAT2 : 3183-6333
start_rootdir : 6334 root cluster : 2
Data : 6334-409599
sectors : 409600
cluster_size : 1
no_of_cluster : 403266 (2 - 403267)
fat_length 3151 calculated 3151
heads/cylinder 16 (FAT) != 1 (HD)
sect/track 32 (FAT) != 1 (HD)

FAT32 at 40/0/1
     EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 46/0/1
FAT1 : 32-3182
FAT2 : 3183-6333
start_rootdir : 6334 root cluster : 2
Data : 6334-409599
sectors : 409600
cluster_size : 1
no_of_cluster : 403266 (2 - 403267)
fat_length 3151 calculated 3151
heads/cylinder 16 (FAT) != 1 (HD)
sect/track 32 (FAT) != 1 (HD)
set_FAT_info: name from BS used

FAT32 at 46/0/1
     EFI System                    46     409645     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
Search for partition aborted

Results
     EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
     EFI System                    46     409645     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB

interface_write()
 
No partition found or selected for recovery
simulate write!
New geometry
Disk /dev/rdisk2 - 1000 GB / 931 GiB - CHS 3815479 16 32 sector_size=512

Analyse Disk /dev/rdisk2 - 1000 GB / 931 GiB - CHS 3815479 16 32
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=1953536511 (expected 1953525247)
hdr_lba_start=34
hdr_lba_end=1953536478
hdr_lba_table=2
hdr_entries=128
hdr_entsz=128
Current partition structure:
 1 P EFI System                    40     409639     409600
 2 P Mac HFS                   409640 1953262983 1952853344

search_part()
Disk /dev/rdisk2 - 1000 GB / 931 GiB - CHS 3815479 16 32
check_FAT: Unusual media descriptor (0xf0!=0xf8)
FAT32 at 0/1/9
FAT1 : 32-3182
FAT2 : 3183-6333
start_rootdir : 6334 root cluster : 2
Data : 6334-409599
sectors : 409600
cluster_size : 1
no_of_cluster : 403266 (2 - 403267)
fat_length 3151 calculated 3151

FAT32 at 0/1/9
     EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB

HFS+ magic value at 800/1/9
part_size 1952853344
     Mac HFS                   409640 1953262983 1952853344
     HFS+ blocksize=4096, 999 GB / 931 GiB
NTFS at 3815474/13/16
heads/cylinder 255 (NTFS) != 16 (HD)
sect/track 63 (NTFS) != 32 (HD)
filesystem size           1953521072
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               16
clusters_per_mft_record   -10
clusters_per_index_record 1
NTFS: Can't read MFT
     MS Data               1953523119 3907044190 1953521072
     NTFS, blocksize=4096, 1000 GB / 931 GiB
This partition ends after the disk limits. (start=1953523119, size=1953521072, end=3907044190, disk end=1953525248)
Disk /dev/rdisk2 - 1000 GB / 931 GiB - CHS 3815479 16 32
Check the harddisk size: HD jumpers settings, BIOS detection...
The harddisk (1000 GB / 931 GiB) seems too small! (< 2000 GB / 1863 GiB)
The following partition can't be recovered:
     MS Data               1953523119 3907044190 1953521072
     NTFS, blocksize=4096, 1000 GB / 931 GiB

Results
   P EFI System                    40     409639     409600 [EFI]
     FAT32, blocksize=512, 209 MB / 200 MiB
   P Mac HFS                   409640 1953262983 1952853344
     HFS+ blocksize=4096, 999 GB / 931 GiB

interface_write()
 1 P EFI System                    40     409639     409600 [EFI]
 2 P Mac HFS                   409640 1953262983 1952853344
when doing a quick scan it seems to jump straight to 99% then slowly finish. which seems odd.

The things i am wondering about are:
disk2 and rdisk2? wich one should i select?
check_FAT: Unusual media descriptor (0xf0!=0xf8) -- what does this mean?
I got this error:
heads/cylinder 16 (FAT) != 1 (HD)
sect/track 32 (FAT) != 1 (HD)
changing heads to 16 and sectors to 32 using the geometry menu seemed to be correct.

i get an error when i try to write and i cannot list my files.
any advice appreciated

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