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Date:      Mon, 25 Sep 1995 22:33:57 -0700 (PDT)
From:      Julian Elischer <julian@ref.tfs.com>
To:        chuckr@eng.umd.edu (Chuck Robey)
Cc:        richard@harlequin.co.uk, freebsd-install@freebsd.org, freebsd-questions@freebsd.org
Subject:   Re: "Installation" and "upgrade"
Message-ID:  <199509260533.WAA08880@ref.tfs.com>
In-Reply-To: <Pine.SUN.3.91.950925191956.11012C-100000@cappuccino.eng.umd.edu> from "Chuck Robey" at Sep 25, 95 07:25:42 pm

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well, what has changed?
the bootloader.

some tuning parameters

the diskslice stuff basically looks the same 'on disk'
(can handle old slices)

I have 'upgraded' across every release since 386bsd 0.1 pl1
and whie I have usually newfs'd every partition at some time or other,
I have always had a partition that I left alone here or there.
there has never been a problem.

> 
> On Mon, 25 Sep 1995, Julian Elischer wrote:
> 
> > > > 
> > > > Keep up the good work.  I wish I had time to pitch in.
> > > > 
> > > 
> > > One good reason why you haven't found a method of upgrading from 2.0 to 
> > > another version, is because there isn't one.  The filesystem changed 
> > > right after the release of 2.0, so upgrading to anything more recent 
> > > requires backup up your files, and doing a fresh reinstall.  Believe me, 
> > > there's no way around it.
> > > 
> > > The new install will reinstall your filesystems, with a newer variety, 
> > > based upon "slices".
> > > 
> > 
> > this is a bit misleading. the new filsystems layed out in 2.0.5
> > are more optimal, but if you want to, you can just decline to newfs
> > them and use the old partitions, and install new binaries onto them..
> > we can still read old partitions
> > 
> 
> Julian, I think that's a bad thing to tell people.  If anyone else 
> agrees, I'll stop saying this, but I think it's a real bad idea, for a 
> whole range of reasons.
> 
> Besides having to deal with a boatload of howls from folks who lost their 
> files because they were told they could upgrade without the reinstall, 
> how are you going to troubleshoot future reported problems if you aren't 
> even sure of the underlying FS ?  I don't like this idea ...
> 
> ----------------------------+-----------------------------------------------
> Chuck Robey                 | Interests include any kind of voice or data 
> chuckr@eng.umd.edu          | communications topic, C programming, and Unix.
> 9120 Edmonston Ct #302      |
> Greenbelt, MD 20770         | I run Journey2 and n3lxx, both FreeBSD
> (301) 220-2114              | version 2.2 current -- and great FUN!
> ----------------------------+-----------------------------------------------
> 
> 




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