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Date: Wed, 23 Jan 2008 21:27:13 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: Rakhesh Sasidharan <rakhesh@rakhesh.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: make buildworld 6.x on 7.x?
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Rakhesh Sasidharan wrote:
> Hi,
> 
> Is it possible to do a ''make buildworld buildkernel'' of the FreeBSD 
> 6.x series sources on a FreeBSD 7.x machine and then install them onto a 
> FreeBSD 6.x machine?

Yes, I did this a few minutes ago in fact :)  No special procedures are 
necessary, world builds are already suitably isolated from the host 
system for this to work.

Kris