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Date:      Wed, 16 Dec 2009 14:25:28 +0100 (CET)
From:      sthaug@nethelp.no
To:        ben@morrow.me.uk
Cc:        freebsd-stable@freebsd.org
Subject:   Re: update to 8.0-RELEASE --> partition gone
Message-ID:  <20091216.142528.74661073.sthaug@nethelp.no>
In-Reply-To: <20091216121326.GA46703@osiris.mauzo.dyndns.org>
References:  <7BA0C6CC-A1D9-49C2-942D-D46C19E9B3CB@mac.com> <20091216.113300.74685382.sthaug@nethelp.no> <20091216121326.GA46703@osiris.mauzo.dyndns.org>

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> > > If you installed "dangerously dedicated" and ended up
> > > with ad0s1a (note the "s1"), then you have an invalid
> > > partitioning and FreeBSD 8.x will not give you what
> > > you've been getting on FreeBSD 7.x. Most of the time
> > > you only need to wipe out the second sector on the
> > > disk to clean it up and have FreeBSD 8.x also give
> > > you ad0s1a.
> > 
> > So what's an easy recipe we can run on 7.x hosts to see whether we
> > would have problems with 8.x?
> 
> >>From what's been said so far: If you have adXsY devices in 7, *and* 
> 
>     bsdlabel adX
> 
> finds a valid label (*note*: that is the whole disk, not the slice),
> then you have conflicting BSD and MBR labels at the start of the disk
> and you will have a problem in 8.

So presumably if I have root on ad4s1a today, and bsdlabel shows

# bsdlabel ad4
bsdlabel: /dev/ad4: no valid label found

then I am ready for FreeBSD 8.x?

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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