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Date: Fri, 14 Nov 2003 22:18:37 -0600
From: "Matthew D. Fuller" <fullermd@over-yonder.net>
To: Poul-Henning Kamp <phk@phk.freebsd.dk>
Message-ID: <20031115041837.GU12248@over-yonder.net>
References: <20031113064251.GB39616@cirb503493.alcatel.com.au>
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cc: Peter Jeremy <PeterJeremy@optushome.com.au>
cc: arch@freebsd.org
Subject: Re: newfs and mount vs. half-baked disks
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On Thu, Nov 13, 2003 at 08:14:42AM +0100 I heard the voice of
Poul-Henning Kamp, and lo! it spake thus:
> >On Wed, Nov 12, 2003 at 09:56:14AM +0100, Poul-Henning Kamp wrote:
> >
> >How do you handle the situation when the master superblock on / is
> >hosed and you need to find the filesystem parameters (in
> >/etc/ufs.conf) before you can access /?
> 
> I usually take great care to always newfs / with default parameters,
> because then I can use newfs -N /dev/ad0a to see where the superblocks
> are to be found.

Doesn't always help much...

My / has 8192/1024 block/frags, and I somehow expect other defaults
things have changed since last I newfs'd it.


-- 
Matthew Fuller     (MF4839)   |  fullermd@over-yonder.net
Systems/Network Administrator |  http://www.over-yonder.net/~fullermd/

"The only reason I'm burning my candle at both ends, is because I
      haven't figured out how to light the middle yet"