[ubuntu-in] mount issue

[Sanjay Bhangar]

On Tue, Jul 27, 2010 at 3:10 AM, Rtr.Atreya Roy Chowdhury
<atreya.chowdhury at gmail.com> wrote:
>
> every time i try to mount one of my drives the follow crops up.
> Error mounting: mount exited with exit code 13: ntfs_attr_pread_i: Zero run length: Input/output error
> ntfs_attr_pread_i: Failed to find VCN #1: Input/output error
> Failed to calculate free MFT records: Input/output error
> NTFS is either inconsistent, or there is a hardware fault, or it's a
> SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
> then reboot into Windows twice. The usage of the /f parameter is very
> important! If the device is a SoftRAID/FakeRAID then first activate
> it and mount a different device under the /dev/mapper/ directory, (e.g.
> /dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
> for more details.
> can any one tell me how to take care of this....because all my important works are in that drive...

is this an ntfs drive that also runs on a windows machine? Some bits
in your error message are not familiar to me, but when I have got the
message as you have: "In the first case run chkdsk /f on Windows then
reboot into Windows twice. The usage of the /f parameter is very
important!" - I have done exactly that and it has worked. To outline
exactly what I did when I got a similar error:
a> Connect drive to windows machine.
b> Pray it shows up as a drive. If it does not show up, I would advise
to keep the drive powered off until you see someone who knows what
they're doing since it could be hardware errors and messing around
with the drive could be worsening it. Let's assume it does show up in
Windows. Say it shows up as g:
c> Open up a command prompt window. (Start -> Run -> cmd) . Run chkdsk
/f g:  <-- substitute g: with whatever letter your drive shows up as.
d> If all goes well, windows will find some errors and fix them.
e> Reboot the windows machine with the drive connected.
f> Reboot AGAIN.
g> Connect the drive to an ubuntu machine, and it should now mount..

Inexplicably, this step of rebooting twice was very important. In my
case, this has always solved the problem when I got this message from
Ubuntu (and it has happened to me a fair bit). In your case, the line
"Zero run length: Input/output error" seems maybe a little worrying,
but you can try the above steps.

Best of luck,
Sanjay


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