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Date: Tue, 2 May 2006 11:00:18 +0100
From: Brian Candler <B.Candler@pobox.com>
To: Odhiambo Washington <wash@wananchi.com>
Message-ID: <20060502100018.GA30251@uk.tiscali.com>
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Cc: freebsd-isp@freebsd.org
Subject: Re: Router upgrade....
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On Fri, Apr 28, 2006 at 11:11:27PM +0300, Odhiambo Washington wrote:
> | I would like to upgrade the OS to 6.1RC1 to get the better support for CARP on
> | VLAN interfaces.What would the best way be to upgrade with minimum 
> | downtime?
> 
> Upgrading 5.4 to 6.x isn't an issue at all!
> make buildworld
> make kernel
> reboot

... into single user mode (if you are following the official upgrade
procedure; if not then you are on your own if you break things)

> make installworld
> mergemaster

... correctly answering all the questions about which files to overwrite,
which to leave alone, or attempt to merge the diffs.

> reboot

... remembering that from the start of the first reboot until the end of the
second one, your router will be off-line.

Regards,

Brian.