input output error

[Tyler Aviss]

Have you tried it in a different USB port? Also, you might want to
check to see what error messages occur before mounting.

Unplug the USB cable and power the drive down. Now power it up, and
after a moment or two plug in the USB cable. Type "dmesg | tail" and
see what it says, it should find the connected drive and/or
partition(s).

If you get input/output error there... you might want to consider
plugging the drive right into the machine or trying a different
enclosure.


Also, sometimes I find that where fdisk fails, cfdisk works

Try

cfdisk /dev/sda

or failing that

cfdisk -Z /dev/sda (DO NOT WRITE TO THE DRIVE IF YOU DO THIS, IT WILL
ERASE PARTITIONS, but you can see if it finds the drive and correct
size)

I'll be in Toronto about Sunday, if you still can't figure it out
maybe you can drag it along to a cafe somewhere and I can test it
against my laptop.


Regards,


Tyler

On 7/10/07, hui xu <louiehui_xu-FFYn/CNdgSA at public.gmane.org> wrote:
>
>
> I tried
>
>  fdisk -l /dev/sda, I got blank output
>
> with
>
>   file -s /dev/sda /dev/sda, I got
>
> /dev/sda:  file: read failed (Input/output error)
>
> with
>
>  /sbin/pvdisplay /dev/sda , I got
>
> ERROR "pv_read(): read" no VAILD physical volum
> "/dev/sda"
>
>
> Doese these means my disk is broken so I have to buy a
> new one?
>
> Thansk!
> LOuie
>
>
>
>
>
>
>
>
>
> --- Lennart Sorensen <lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org>
> wrote:
>
> > On Mon, Jul 09, 2007 at 11:57:55PM -0400, hui xu
> > wrote:
> > > Could anybody tell me how to recover the data from
> > my
> > > harddisk? My problem is:
> > >
> > > I have stored all my photoes and software in an
> > > harddisk connected by USB to my linux box. I have
> > not
> > > used it for half year. recently I try to mount (
> > mount
> > > -a /dev/sda /bigfoot) it to my linux box to get
> > the
> > > data, I got the errors "/dev/sda: Input/output
> > error
> > > mount: you must specify the filesystem type"
> >
> > What is the output of these:
> >
> > fdisk -l /dev/sda
> > file -s /dev/sda /dev/sda1
> >
> > --
> > Len Sorensen
> > --
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