Re: [smartmontools-support] BadBlockHowTo for FreeBSD

[Bruce A. <ba...@gr...>]

Doug: could you please incorporate this into the document?

Cristian: is there a way to identify what file is being overwritten with a 
sector of zeros?

Cheers,
 	Bruce


On Sun, 1 Apr 2007, Cristian KLEIN wrote:

> Hi,
>
> Please include the following information somewhere on your site. It
> describes how to solve 'Current Pending Offline' problems on FreeBSD. If
> I had this information sooner, it would have saved me a lot of trouble.
> The following was tested on a FreeBSD 5.4, but should work on any
> FreeBSD > 5.
>
> Thank you very much,
> Cristi.
>
> --- cut here ---
> Suppose /dev/ad2 is failing a sector $x$. Do the following:
>
> root# sysctl kern.geom.debugflags=16
> root# dd if=/dev/zero of=/dev/ad2 bs=512 count=1 oseek=$x$
> root# sysctl kern.geom.debugflags=0
>
> The first command enables writing directly to GEOM providers (your disk
> in this case). The second command overwrites the 'sick' sector with
> zeroes. The third command disables writing directly to GEOM providers
> (better be safe than sorry).
> --- and here ---
>
>
>
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