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Date:      01 Feb 2003 11:19:39 -0500
From:      Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: How to map bad sectors on IDE?
Message-ID:  <44k7gkq8h0.fsf@be-well.ilk.org>
In-Reply-To: <Pine.LNX.4.44.0301312140280.4225-100000@localhost.localdomain>
References:  <Pine.LNX.4.44.0301312140280.4225-100000@localhost.localdomain>

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John Mills <jmills@speakeasy.net> writes:

> out of circulation. 'apropos badblocks' and 'man fsck' failed to suggest
> such a function in fBSD, but it might be worth more looking.

badsect(8)

> > Why is it radical?  After all, IDE disks already do bad-block
> > remapping internally, so you've built up a *lot* of bad sectors
> > already if they're starting to become visible to the operating
> > system...
> 
> Does fBSD's file system creation make sure that all blocks of a newly
> created file system are in fact usable? I would be surprised if there were
> no cross checks in the formatting/partitioning/fs-creation path. If the
> bad blocks weren't linked in the new filesystem, they would have become
> invisible for practical purposes.

newfs doesn't make any such attempts any more, *because* the hardware
has already done it for them.  

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