Date: Sat, 17 Jul 2004 14:59:13 -0700 From: "Kevin Oberman" <oberman@es.net> To: epilogue <epilogue@allstream.net> Cc: questions@freebsd.org Subject: Re: upgrading form 4.2 to 5.x Message-ID: <20040717215913.930135D08@ptavv.es.net> In-Reply-To: Your message of "Sat, 17 Jul 2004 17:14:22 EDT." <20040717171422.1d48e5fa@localhost>
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> Date: Sat, 17 Jul 2004 17:14:22 -0400 > From: epilogue <epilogue@allstream.net> > Sender: owner-freebsd-stable@freebsd.org > > On Sat, 17 Jul 2004 14:50:13 +0200 > Remko Lodder <remko@elvandar.org> wrote: > > > Brent Bailey wrote: > > > > > Hello, > > > My company has been asked to help with the upgrade of several Freebsd > > > systems that are pretty old. The customer is running a file server > > > samba also running apache running FBSD 4.2, he wants to upgrade using > > > cvsup & the make buildworld procedure to upgrade to 5.x. Im very > > > familier with the make buildworld procedure however there have been > > > significant changes between 4.2 & 5.x so is this something that can be > > > done without many problems ? > > hello brent, > > though i don't know anyone who has gone this route, i imagine it is > possible. the reason most people don't cvsup from 4.x to 5.x is because > there is a fundamental change in the filesystem (details of which escape me > now - check the release notes at freebsd.org). by simply cvsupping, you > will _not_ be able to take advantage of the new filesystem. > > if your customer insists upon 5.x, it would probably be best to prepare a > full back-up then: > > a) take the machine down, make a fresh install of 5.x, then load back data. > > b) build and configure a parallel 5.x machine, load it with the backed-up > data, then find a new use for the 4.x series machine. I have gone this route a couple of times. It was an interesting exercise, but not one I would recommend. It works, but things like the transition from ufs to ufs2 and new threading libraries and LOTS more make it a rough way to go. I think the advise to do a fresh install is the best option if you go to 5, but I'd really recommend staying at 4.10 or STABLE for now. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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