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spaceship.rodeo
August 11th, 2008, 01:22 AM
Whenever I try to mount my windows partition, it keeps giving me this error:

NTFS signature is missing.
Failed to mount '/dev/sda2': Invalid argument
The device '/dev/sda2' 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?
I don't know what it means? Here's my fstab output:


Disk /dev/sda: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xe686f016

Device Boot Start End Blocks Id System
/dev/sda1 1 8 64228+ de Dell Utility
/dev/sda2 * 9 60167 483227167+ 7 HPFS/NTFS
/dev/sda3 60168 60787 4980150 db CP/M / CTOS / ...

Disk /dev/sdb: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table

I really need to get my stuff of the windows partition and would appreciate any help.

Pro-reason
August 11th, 2008, 01:44 AM
It looks like that partition is corrupt. Are you able to boot into Windows?

spaceship.rodeo
August 11th, 2008, 01:46 AM
Uh, no. It won't even boot up windows, but before that happened, it would give me a BSOD as soon as I logged into a profile.

tinker312
August 11th, 2008, 02:09 AM
Hey Spaceship.Rodeo,

You may be able to fix your windows installation by booting to your windows disk, going to the recovery console, and typing chkdsk /p /r

I wouldn't mess with the Master Boot Record if you run a dual boot machine. It sounds like you do. If the NTFS partition is corrupt chkdsk MAY fix it . . .and then you should be able to mount the drive successfully in Ubuntu.

There is a legendary computer guru named Steve Gibson who sells a product called SpinRite . . . It's probably one of the best hard drive recovery applications out there. I think there are freebies that you could try as well.

spaceship.rodeo
August 11th, 2008, 02:12 AM
See, that's the kicker here. I tried putting in my windows cd to repair the messed up file, but as soon as everything's done loading, it gives me a bsod. That's the thing I don't understand, I have never heard of this happening.

tinker312
August 11th, 2008, 02:27 AM
Ok, if you have a functional Ubuntu system and a hard drive with bad sectors or "corrupt" then this app written for debian may help you.

http://www.debianadmin.com/recover-data-from-a-damaged-hard-disk-using-dd_rhelp.htmlprint/

I would try this if if I wasn't going to lose years worth of essays or a couple 20 gigs of media I don't have backed up. If your real worried you may want try ntfs specific recovery app like one from Gibson.

Also the Knoppix live cd is pretty awesome, i used it at work to ssh into broken windows computers and save peoples files. Here is a tutorial on hard drive recovery using Knoppix.

http://www.google.com/notebook/public/13391255910222927091/BDSe5QgoQ57vTvvki

I haven't personally tested this stuff but I offer it as a place to begin. Good Luck . . .