Date: Thu, 6 Nov 1997 20:41:37 +0000 From: James Raynard <fhackers@jraynard.demon.co.uk> To: "Julian H. Stacey" <jhs@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: bad144 & ide format Message-ID: <19971106204137.12039@jraynard.demon.co.uk> In-Reply-To: <199711031945.UAA00778@flip.jhs.no_domain>; from Julian H. Stacey on Mon, Nov 03, 1997 at 08:45:43PM %2B0100 References: <199711031945.UAA00778@flip.jhs.no_domain>
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On Mon, Nov 03, 1997 at 08:45:43PM +0100, Julian H. Stacey wrote:
> Help ! :-)
> I've config'd & used loads of SCSI drives on FreeBSD systems,
> but I never seem to be able to correctly add IDE drives to pre-built systems ...
>
> all I want to do is format them, run a bad144 on them to fix
> the bad blocks, disklabel & newfs & add them to existing systems.
Talk about doing things the hard way :-) As described in the FAQ, you
can do this by running /stand/sysinstall on an existing system - there's
even an option to run a bad blocks scan first. (Although doing it all
by hand should work as well).
> The strange thing is, despite bad144 producing these error messages,
> I can newfs a 200M file system & write & read check data to the FS
> without consolke errors, but I must be walking a tightrope, in light of the
> bad144 error report.
>From the FAQ:
4.1. I have bad blocks on my hard drive!
[explanation of SCSI block re-mapping]
For other drive types, you are dependent on support from the operating
system. Unfortunately, the ``bad144'' command that FreeBSD supplies
for this purpose needs a considerable amount of work done on it. In
other words, it doesn't work. If you're lucky, you can create a file
that contains the bad blocks and stuff it away with a name like
".BADBLOCKS". This is how I got 386BSD Patchkit 24 completed. NOTE:
don't do this unless your time is effectively free.
IDE drives are _supposed_ to come with built-in bad-block remapping; if
you have documentation for your drive, you may want to see if this
feature has been disabled on your drive. However, ESDI, RLL, and
ST-506 drives normally do not do this.
--
James Raynard, Edinburgh, Scotland.
james@jraynard.demon.co.uk
http://www.freebsd.org/~jraynard/
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