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Date:      Tue, 12 Mar 2002 18:19:55 +0100
From:      Erik Trulsson <ertr1013@student.uu.se>
To:        MikeM <MyRaQ@mgm51.com>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Remote upgrading (was: /etc/make.conf question)
Message-ID:  <20020312171954.GB10440@student.uu.se>
In-Reply-To: <200203121201050707.044E239E@luna.affordablehost.com>
References:  <Pine.GSO.4.32.0203121126520.1546-100000@nippur.irb.hr> <20020312074349.A91204@blackhelicopters.org> <20020312155618.GA9463@raggedclown.net> <20020312114158.A92910@blackhelicopters.org> <200203121201050707.044E239E@luna.affordablehost.com>

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On Tue, Mar 12, 2002 at 12:01:05PM -0500, MikeM wrote:
> On 3/12/02 at 11:41 AM Michael Lucas wrote:
> 
> |[snip]
> |Remember, the correct dance for an upgrade these days includes the
> |following:
> |
> |make buildworld
> |make buildkernel
> |make installkernel
> |<reboot, single-user>
> |make installworld
> |mergemaster
> |<reboot>
> |[snip]
> =============
> 
> I manage a remote FreeBSD server, a single-user reboot is not at all
> practical.  So my question is: how important, and for what reason, is
> the urging to go into single-user mode?  On my remote server, I can
> assure that I am the only person logged in, I just cannot get into
> single-user mode.
> 
> Will the 'make installworld' and 'mergemaster' steps not work
> properly in my scenario?

There are two reasons for booting into single-user. One is to make sure
that the machine is "quiet" since any programs running might get
confused as the system is changed underneath them.
The other is to allow you to check that the newly-built kernel is
working properly before you install all the user-land programs.
It is easy to go back to using an older kernel but reversing an
installworld is not so easy.

Now, if you can ensure that the machine is "quiet" in some other way,
for example by not running any applications yourself and making sure
nobody else is logged in, and are confident that the new kernel will
work then there is no reason you can't do a remote upgrade.

I have done remote upgrades on my computer several times without any
major problems but YMMV. 



-- 
<Insert your favourite quote here.>
Erik Trulsson
ertr1013@student.uu.se

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