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NTFS Partition problem /etc/fstab write forgot to unmount 
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Joined: Thu May 05, 2016 19:13
Posts: 1
Post NTFS Partition problem /etc/fstab write forgot to unmount
Hi,
I made a terrible mistake and mounted my NTFS drive using the /etc/fstab trick

With these instructions:
http://www.cnet.com/news/how-to-manuall ... e-in-os-x/

Then wrote a bunch of data to do it.

I tried to run unmount but it didnt work so I unplugged it.
In hind sight I probably needed to sudo unmount but by then it was too late.

Now it wont work.

I downloaded Tuxera NTFS and ran the check tool and it output the following.

Started file system verification on disk3s1 YOLO
Verifying file system
ntfsck (Tuxera NTFS v2015.3)
File system check exit code is 8
Error: -69845: File system verify or repair failed
Underlying error: 8: POSIX reports: Exec format error

I then ran the mtfsmetaclone tool to see if I could extract any meta data and got this error:

Executing command: './AuthExec' '/bin/bash' '-c' '(./ntfs-3g.clone -mso - "/dev/disk4s1" | bzip2 > "/Users/madhavajay/Desktop/disk4s1.img.bz2"; test "${PIPESTATUS[*]}" == "0 0" && (exit 0)) || (exit 1)'...
ntfs-3g.clone 2009.4.4
NTFS signature is missing.
ERROR(22): Opening '/dev/disk4s1' as NTFS failed: Invalid argument
Apparently device '/dev/disk4s1' doesn't have a valid NTFS. Maybe you selected
the whole disk instead of a partition (e.g. /dev/hda, not /dev/hda1)?

The thing is I know the data is there, it just wasn't safely unmounted, which I guess means the changes to the NTFS partition weren't written out properly?

Is there a way I can repair the partition?
I really want the data back and I don't want to have to buy a 3TB drive so i can DD the entire drive to an image and then run byte by byte data recovery on the files and get back a huge directory of un-named unorganised files as I have done in the past with file system recovery.

Any suggestions would be greatly appreciated! :)


Thu May 05, 2016 19:39
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NTFS-3G Lead Developer

Joined: Tue Sep 04, 2007 17:22
Posts: 1284
Post Re: NTFS Partition problem /etc/fstab write forgot to unmount
Hi,

Quote:
Is there a way I can repair the partition?

I do not know anything about Mac software, so I cannot help with Mac solutions...

When an ntfs partition is badly damaged, chkdsk on a Windows box can generally fix it. However do not try it if Windows sees the partition as "raw" (could be a partitioning damaged or incompatible with Windows). If it succeeds, please post the contents of a file created under "\System Volume Information\Chkdsk" (a unicode encoded text file).

Regards

Jean-Pierre


Fri May 06, 2016 10:41
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