From owner-freebsd-questions Wed Jan 16 9:53:16 2002 Delivered-To: freebsd-questions@freebsd.org Received: from ptavv.es.net (ptavv.es.net [198.128.4.29]) by hub.freebsd.org (Postfix) with ESMTP id C4B2B37B402 for ; Wed, 16 Jan 2002 09:53:13 -0800 (PST) Received: from ptavv.es.net (localhost [127.0.0.1]) by ptavv.es.net (Postfix) with ESMTP id 891BE5D13; Wed, 16 Jan 2002 09:53:13 -0800 (PST) To: "Doug Reynolds" Cc: "Brian T. Schellenberger" , "freebsd-questions@FreeBSD.ORG" , "Rodrigo A B Freire" Subject: Re: Newbie: 4.4-stable, how to? - And the CVSupIT bug. In-reply-to: Your message of "Wed, 16 Jan 2002 12:28:12 EST." <20020116172620.179CF48425@wastegate.net> Date: Wed, 16 Jan 2002 09:53:13 -0800 From: "Kevin Oberman" Message-Id: <20020116175313.891BE5D13@ptavv.es.net> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > From: "Doug Reynolds" > Date: Wed, 16 Jan 2002 12:28:12 -0500 > > On Tue, 15 Jan 2002 21:02:57 -0800, Kevin Oberman wrote: > > >> you can also type "shutdown now" instead of rebooting into single user > >> mode b4 installing the world- it saves from running fsck, mounting etc > >> etc etc > > > >While you can do a great many things in FreeBSD, this one is NOT a good > >idea. The point of the reboot is to load the new kernel and make sure > >it will boot before installing the world. an 'fsck -p' takes about 2 > >seconds and 'mount -a -t ufs' takes a bit less. > > > >Once you have installed world, if the new kernel won't work you system > >might not run properly with the old kernel and backing out the world > >install is a major pain. > > > >The instructions in UPDATING were written to provide a safe, fairly > >easy way to update a system. Think carefully of what you are doing > >before diverging from them. > > well, in that case, if it doesn't work, it'll test your backups to see > if they'll work :) It will also check out your adeptness in explaining to your boss why a server was down for 3 hours while you restored the system (including panicked investigation of whether there is a way to avoid the need to restore, the time to load the backup tapes into the DLT's hopper, and the time to actually restore 3 or 4 levels of dump). Of course, if it's just a test system, you might not care. And I'm sure you always deploy updates on a test system before trying them on any production system. :-) 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message