dd booboo

Daniel teletautala at gmail.com
Sat Feb 17 21:16:48 MST 2007


I thank you all for your help.  I can see the disk now that I
restarted the computer.  I feel it's safe to give the hard drive to
DI.

-Daniel

On 2/17/07, Charles Curley <charlescurley at charlescurley.com> wrote:
> On Sat, Feb 17, 2007 at 06:23:27PM -0700, Daniel wrote:
> > FYI when I finished the dd booboo I did "df -h" it showed /dev/sdb1 as
> > having -XXX used space.  It also said that dd ran out of space.  after
> > all this I unplugged it.  I was trying to wipe out the drive so I
> > could give it away.  I will try plugging it back in and see if I can
> > see it.
>
> Ah. In that case, run
>
> dd if=/dev/zero of=/dev/sdb
>
> (Note the lack of a 1 in the device name.) That's the command I
> thought you had run earlier. In addition to getting the first
> partition (sdb1), you will also get the partition table and the rest
> of the gap between the first sector on the drive (the partition table)
> and the beginning of the first partition.
>
> Running out of drive space was perfectly reasonable. You didn't give
> dd a count, so normally it would go until it exhausted the input
> file. Since your input file has an infinite supply of zeros, dd filled
> up the partition. Other than clobbering the file system, the command
> is harmless. The OS won't let you write beyond the end of a partition.
>
>
> --
>
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