TestDisk found my formatted partition, but I cant write them

How to use TestDisk to recover lost partition
Post Reply
Message
Author
chrisrand
Posts: 3
Joined: 09 Dec 2013, 07:56

TestDisk found my formatted partition, but I cant write them

#1 Post by chrisrand » 09 Dec 2013, 08:24

Hello everyone,

OK, so here is the story. I was editing the partitions on an extra internal drive on my Mac Pro running Lion 10.7.5. I accidentally selected the entire drive and not the partition that I needed to erase and now all my data and the partitions are just one single formatted drive called Untitled.

So I booted up to a spare install of Lion and used TestDisk to hopefully recover my partitions. It finds the correct partitions right away, but after I tell it to write the partition structure and reboot, the drive still shows up as just one partition named Untitled.

I must mention that I have read all the instructions before hand and read through the forums already. I unmounted the disk before launching TestDisk and I did launch it with sudo. I have tried dev/disk0 and dev/rdisk0. I have also used TestDisk in the past, but for some strange reason its not working for me this time.

What could be the issue?

I have uploaded all the screenshots of my progress for you to double check my work.

https://drive.google.com/file/d/0B-zaWl ... sp=sharing

Thanks
Last edited by chrisrand on 11 Jan 2014, 21:19, edited 2 times in total.

Sponsored links

edevans
Posts: 1
Joined: 15 Dec 2013, 21:58

Re: TestDisk found my lost partition, but I can't write them

#2 Post by edevans » 15 Dec 2013, 22:02

Same issue.
mine is Win 7 32, drive is 2TB on USB interface (tried more than one interface)

shows proper info to retrieve, select write, reboot, restart drive, but not fixed

thanx

e

User avatar
cgrenier
Site Admin
Posts: 3754
Joined: 18 Feb 2012, 15:08
Location: Le Perreux Sur Marne, France
Contact:

Re: TestDisk found my lost partition, but I can't write them

#3 Post by cgrenier » 04 Jan 2014, 12:11

Your partition is listed in the current partition table, so no need to use TestDisk to search for the partition. Your partition isn't lost, you have reformated it! Use PhotoRec instead. Good luck for renaming all the recovered files...

chrisrand
Posts: 3
Joined: 09 Dec 2013, 07:56

Re: TestDisk found my lost partition, but I can't write them

#4 Post by chrisrand » 11 Jan 2014, 21:21

cgrenier wrote:Your partition is listed in the current partition table, so no need to use TestDisk to search for the partition. Your partition isn't lost, you have reformated it! Use PhotoRec instead. Good luck for renaming all the recovered files...
The thing is, I have made the mistake before of formatting the wrong disk from Disk Utility and TestDisk has been able to recover the partitions every time, except this time.

Why is it that the old partition scheme is found, but can't be written back on this drive?

I have attached the log file for anyone able to look it over.

Thanks

User avatar
Fiona
Posts: 2836
Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: TestDisk found my formatted partition, but I cant write

#5 Post by Fiona » 13 Jan 2014, 08:32

I don't find any logfile?
As you reported your topic, you're not able to upload your logfile, did you get any message?
Did you use a supported file format to upload?
Also, you can copy and paste the content of your testdisk.log into your next post.

Fiona

chrisrand
Posts: 3
Joined: 09 Dec 2013, 07:56

Re: TestDisk found my formatted partition, but I cant write

#6 Post by chrisrand » 13 Jan 2014, 17:15

I just noticed the error now, because its a little hidden. "The extension txt is not allowed"

Here is the log just pasted in. Thank you

________________________________________________________________________





Mon Dec 9 01:27:03 2013
Command line: TestDisk

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Darwin, kernel 11.4.2 (Darwin Kernel Version 11.4.2: Thu Aug 23 16:26:45 PDT 2012; root:xnu-1699.3
Compiler: GCC 4.0
Compilation date: 2013-07-30T14:08:37
ext2fs lib: 1.41.8, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20120504
Hard disk list
Disk /dev/disk0 - 2000 GB / 1863 GiB - 3907029168 sectors, sector size=512
Disk /dev/disk1 - 3000 GB / 2794 GiB - 1565565872 sectors (RO), sector size=512
Disk /dev/disk2 - 250 GB / 232 GiB - 488397168 sectors (RO), sector size=512
Disk /dev/rdisk0 - 2000 GB / 1863 GiB - 3907029168 sectors, sector size=512
Disk /dev/rdisk1 - 3000 GB / 2794 GiB - 1565565872 sectors (RO), sector size=512
Disk /dev/rdisk2 - 250 GB / 232 GiB - 488397168 sectors (RO), sector size=512

Partition table type (auto): EFI GPT
Disk /dev/rdisk0 - 2000 GB / 1863 GiB
Partition table type: EFI GPT

Analyse Disk /dev/rdisk0 - 2000 GB / 1863 GiB - 3907029168 sectors
hdr_size=92
hdr_lba_self=1
hdr_lba_alt=3907029167 (expected 3907029167)
hdr_lba_start=34
hdr_lba_end=3907029134
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 3906766983 3906357344

search_part()
Disk /dev/rdisk0 - 2000 GB / 1863 GiB - 3907029168 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 3906357344
Mac HFS 409640 3906766983 3906357344
HFS+ blocksize=4096, 2000 GB / 1862 GiB
Search for partition aborted

Results
P EFI System 40 409639 409600 [EFI]
FAT32, blocksize=512, 209 MB / 200 MiB
P Mac HFS 409640 3906766983 3906357344
HFS+ blocksize=4096, 2000 GB / 1862 GiB

interface_write()
1 P EFI System 40 409639 409600 [EFI]
2 P Mac HFS 409640 3906766983 3906357344
write!
No extended partition
You will have to reboot for the change to take effect.

TestDisk exited normally.

Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests