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NTFS signature missing 
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Joined: Tue Feb 27, 2007 19:35
Posts: 1
Location: India
Post NTFS signature missing
hi ,
I was trying with a linux distribution, Fuji Linux on a machine having windows xp only.I though it was a live distribution and tried browing through the cd and unknowing kickstarted an installation. Releasing my folly, I aborted the installation.In the process windows got corrupted.I have not deleted any data further to it.I tried booting through knoppix 5.1 live cd and could see my windows drive on mounting i.e.
mount /dev/hda2 /mnt/windows , though the file names folders appear in cryptic codes
I then tried with the ntfs-3g ( 1.0 stable release with fuse 2.6)
mount -t ntfs-3g /dev/hda2 /mnt/windows
and the outputs is
NTFS signature is missing.
Failed to startup volume: Invalid argument
Failed to mount '/dev/hda2': Invalid argument
The device '/dev/hda2' doesn't have a valid NTFS.
Maybe you selected the wrong device? Or the whole disk instead of a
partition (e.g. /dev/hda, not /dev/hda1)? Or the other way around?

and the ouput of fdisk -lu is as

Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
Units = sectors of 1 * 512 = 512 bytes

Device Boot Start End Blocks Id System
/dev/hda1 63 1044224 522081 82 Linux swap / Solaris
/dev/hda2 * 1044225 156296384 77626080 87 NTFS volume set

Do I stand a chance to get back my windows data, with ntfs-3g ?


Thu Mar 08, 2007 21:16
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Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post NTFS signature missing
Hi,

It seems Fuji Linux (Turbolinux?) overwrote your Windows installation. You
may try a Windows recovery software, ntfs-3g can not help.


Thu Mar 08, 2007 23:19
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Joined: Thu Jan 11, 2007 21:34
Posts: 77
Post 
hmm, the filesystem id 87 isn't normal for a ntfs-partition...
Is that a raidx system? If it is a raid1 there are changes that the other HDD is ok. Else you should backup the partition with a low level program like dd and then try to use chkdsk from a windows-CD.

if it is a raid0 or 5 you should try to assemble the raid again, perhaps LVM from linux or again the repairconsole from a windows-cd helps.


Fri Mar 09, 2007 01:44
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Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post NTFS signature missing
On Fri, 9 Mar 2007, mifritscher wrote:

Quote:
hmm, the filesystem id 87 isn't normal for a ntfs-partition...

It's a hidden NTFS but that means __nothing__. The filesystem type can be
freely changed, independently of the real file system. What is sure is that
no NTFS on the partition. Probably the installer formatted to ext3 (type
82) then a boot loader or something else changed it to hidden NTFS for some
reason.

I think the 'mount /dev/hda2 /mnt' worked because no filesystem type was
specified and in such cases the kernel autodetects the type, completely
independently what the partition type is in the partition table.


Fri Mar 09, 2007 01:53
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Joined: Tue Jul 22, 2008 14:46
Posts: 3
Location: LTU
Post 
Hello, my ntfs encountered same problem - system cant mount, I cant mount it,(after heavy r/w usage with ..home power failure). Partition contains files that i planed to backup, (and i will get a 2nd hd soon, i planing reformat ntfs, it is left after old windowsxp install..).
NTFS signature is missing : on sda1 partition.
Notice: sda4 mounts as usually w/o problems
(/dev/sda4 /mnt/sda4 ntfs-3g defaults,auto,nonempty,force,locale=en_US.utf8,users 0 0)

Code:
                                 Disk Drive: /dev/sda
                           Size: 80026361856 bytes, 80.0 GB
                 Heads: 255   Sectors per Track: 63   Cylinders: 9729

    Name         Flags       Part Type  FS Type            [Label]         Size (MB)
------------------------------------------------------------------------------------
    sda1                      Primary   NTFS              [PMS=MTAT+C]      26139.94
    sda2                      Primary   Linux JFS                            1110.42
    sda4                      Primary   NTFS                                 3717.83
    sda5                      Logical   W95 FAT32 (LBA)                     45378.87
    sda6         Boot         Logical   Linux JFS                            3018.68
    sda7                      Logical   Linux JFS                             658.03 

fstab:
/dev/sda1 /mnt/windows_C ntfs-3g defaults,auto,nonempty,force,locale=en_US.utf8,users 0 0
manually:
mount -t ntfs-3g /dev/sda1 /mnt/windows_C

NTFS signature is missing.     
Failed to mount '/dev/sda1': Invalid argument
The device '/dev/sda1' doesn't have a valid NTFS.
Maybe you selected the wrong device? Or the whole disk instead of a
partition (e.g. /dev/hda, not /dev/hda1)? Or the other way around?

root@# fdisk -l

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
                               
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1        3178    25527253+   7  HPFS/NTFS
/dev/sda2            3179        3313     1084387+  83  Linux
/dev/sda3            3766        9729    47905830    f  W95 Ext'd (LBA)
/dev/sda4            3314        3765     3630690    7  HPFS/NTFS
/dev/sda5            3766        9282    44315271    c  W95 FAT32 (LBA)
/dev/sda6   *        9283        9649     2947896   83  Linux
/dev/sda7            9650        9729      642568+  83  Linux
                               
Partition table entries are not in disk order


software:
libntfs-3g31 Version 1.2531 (May 29, 2008)
ntfs-3g (1:1.2531-1)
lntfsprogs (2.0.0-1)

ntfsinfo v2.0.0 (libntfs 10:0:0)

Wish someone help me :?
..i have a lot of photos on that nts.


Tue Jul 22, 2008 15:46
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Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post 
Try a partition/data recovery software. NTFS-3G doesn't include built-in recovery yet.


Tue Jul 22, 2008 15:51
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Joined: Tue Jul 22, 2008 14:46
Posts: 3
Location: LTU
Post 
Can You plz, suggest some free tool/s ?
I'm willing to fix partition..
(hmn i think i have somewhere ultimate boot cd)
Code:
ntfsfix /dev/sda1
Mounting volume... Failed to startup volume: Invalid argument.
FAILED
Attempting to correct errors... FAILED
Failed to startup volume: Invalid argument.
Volume is corrupt. You should run chkdsk.

chkdsk... I don't have windows to do that..

_________________
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Debian based/Enlightenment powered


Tue Jul 22, 2008 16:46
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Joined: Tue Jul 22, 2008 14:46
Posts: 3
Location: LTU
Post Hello,
me again, PROBLEM SOLVED:
Code:
dmesg | tail
---
NTFS-fs error (device sda5): read_ntfs_boot_sector(): Primary boot sector is invalid.
NTFS-fs error (device sda5): read_ntfs_boot_sector(): Mount option errors=recovery not used. Aborting without trying to recover.
NTFS-fs error (device sda5): ntfs_fill_super(): Not an NTFS volume


so searched my repos for any kind of tools and found testdisk ,
searched on www about boot sector.. found those:
http://www.xtralogic.com/testdisk_rebui ... ctor.shtml
http://ubuntuforums.org/showthread.php?t=61340

Still.. i cant believe that power failure did that coruption..
G.L. ALL my patition is mountable as it was before.

_________________
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Debian based/Enlightenment powered


Wed Jul 23, 2008 15:44
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Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post Re: Hello,
anuu wrote:
i cant believe that power failure did that coruption.
Power failure can cause any kind of harm, even permanent hardware destruction. You don't need to believe it, it's only a scientific and engineering fact.


Wed Jul 23, 2008 22:40
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Joined: Fri Dec 19, 2008 19:07
Posts: 1
Post Similiar mounting problem
I have a similar problem in a partition installed for virtual windows.

(1) installed a fedora core in sda5
(2) installed window xp on partition sda2, which is working.

I cannot mount using ntfs-3g, get similar error

When I used fdisk to view the file system. sda2 is 95 vfat, So I changed its fs id to 7. I was still unable to mount after rebooted.

Then, I rebooted my virtual XP, IT STILL WORKS! The FS in partition sda2 must be OK.

In my case, it is not file corruption, but some compatibility issue although corruption is a possibility in other reported cases. I asked NTFS-3G staff to look into possible compatibility issues. Thanks.


Fri Dec 19, 2008 19:23
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Tuxera CTO

Joined: Tue Nov 21, 2006 23:15
Posts: 1648
Post 
If the partition was marked as FAT by Windows then it is FAT.

If Windows shows it as NTFS then either the Linux partition detection code or the block device setup code is not correct, or the NTFS bootsector was corrupted by a virus, partitioner, boot loader, etc. Please see http://www.ntfs-3g.org/support.html#mbr.

This is not an NTFS level issue. Either repair NTFS or set the block device up properly, so it can be accessed by the NTFS-3G driver. NTFS-3G is neither a volume manager, nor a repair/recovery tool ;-)


Fri Dec 19, 2008 19:31
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