From owner-freebsd-stable  Tue Sep 14  1:20:27 1999
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From: Sheldon Hearn <sheldonh@uunet.co.za>
To: Eliezer Rodriguez Gonzalez <elie@uncle.cult.cu>
Cc: freebsd-stable@FreeBSD.ORG
Subject: Re: Remote system upgrade via NFS problems. 
In-reply-to: Your message of "Mon, 13 Sep 1999 16:37:59 -0400."
             <Pine.BSF.4.05.9909131632010.11964-100000@uncle.cult.cu> 
Date: Tue, 14 Sep 1999 10:20:00 +0200
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On Mon, 13 Sep 1999 16:37:59 -0400, Eliezer Rodriguez Gonzalez wrote:

> I guess this behaviour is normal, I just need to know how to avoid it
> and perform the upgrade on the remote machine taking advantage of the
> previous build process.

The problem is that you're doing something _very_ involved and delicate
when you upgrade from aout to elf. If you were just doing an upgrade
from, last week's STABLE to this week's STABLE, it'd be easy:

	On the box that hosts the source, do ``make buildworld''.

	Copy your obj tree to some backup, e.g.
		cp -pR /usr/obj /usr/obj.mint

	Export your obj tree and source tree to the hosts requiring
	upgrade as normal.

	You can now do ``make installworld'' from those hosts, one at at
	time. In between each ``make installworld'' that you perform on
	the hosts, you should copy the backup obj tree back to the
	exported tree, e.g.
		rm -rf /usr/obj/*
		chflags -R noschg /usr/obj
		rm -rf /usr/obj/*
		cp -pR /usr/obj.mint/* /usr/obj

This whole process of preserving the obj tree may not be necessary any
more. A long time ago, I heard that the ``installworld'' target messed
with some of the stuff in the obj tree. If you'd like to try skipping
the preservation steps, I'd appreciate feedback. :-)

Ciao,
Sheldon.


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