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Date: Wed, 06 Oct 2004 21:25:31 -0700
From: "Jason C. Wells" <jcw@highperformance.net>
To: "Michael C. Cambria" <mcc@fid4.com>, freebsd-current@freebsd.org
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Subject: Re: build/install RELENG_5 from a 4.10 system
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--On Wednesday, October 06, 2004 5:46 PM -0400 "Michael C. Cambria" 
<mcc@fid4.com> wrote:

>
> Hi,
>
> Is it possible to build a RELENG_5 system on a 4.10 system?

The others have told you that such things are possible.  I would advise 
less adventurous souls to perform a binary upgrade when updating major 
version numbers.  I did the upgrades from 2-3 and 3-4 in both ways and the 
binary upgrade was always easier.  I have yet to upgrade from 4-5. The 5X 
UPDATING file is the single scariest FreeBSD document I have ever read. 
UPDATING made me muss my drawers it was so scary.  Don't do scary!  Don't 
muss your drawers!

Once you get a booting system, you can sup and make world to RELENG_5.

Later,
Jason C. Wells