From owner-freebsd-stable Sat Jun 16 3:49: 1 2001 Delivered-To: freebsd-stable@freebsd.org Received: from guru.mired.org (okc-65-26-235-186.mmcable.com [65.26.235.186]) by hub.freebsd.org (Postfix) with SMTP id 217AD37B405 for ; Sat, 16 Jun 2001 03:48:52 -0700 (PDT) (envelope-from mwm@mired.org) Received: (qmail 22685 invoked by uid 100); 16 Jun 2001 10:48:50 -0000 From: Mike Meyer MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15147.14738.542892.94465@guru.mired.org> Date: Sat, 16 Jun 2001 05:48:50 -0500 To: "Steve O'Hara-Smith" Cc: freebsd@nc.rr.com, behanna@zbzoom.net, stable@FreeBSD.ORG Subject: Re: shutdown not completing In-Reply-To: <20010616123942.7f5e3819.steveo@eircom.net> References: <104704270617.20010616015658@nc.rr.com> <15147.11095.884857.587727@guru.mired.org> <20010616123942.7f5e3819.steveo@eircom.net> X-Mailer: VM 6.90 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`;h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Steve O'Hara-Smith types: > On Sat, 16 Jun 2001 04:48:07 -0500 > Mike Meyer wrote: > MM> You left out what I think is the best reason of all: If the new kernel > MM> fails to boot for some reason, it's trivial to back out an > MM> installkernel, but a major PITA to back out an installworld. > > This is why a reboot before installworld is a *good* idea. It has little > to do with running installworld multi-user. > > It is *possible* to let the boot sequence complete all the way and then > run installworld multiuser, *most* of the time it will work but another reboot > would be wise after mergemaster to make sure that the running daemons and the > config files are consistent (POLA). My standard update sequence involves booting the new kernel multiuser, then shutting down to single user. I do that because the test box that I always install on first mounts the source and object trees via nfs, and that's the easiest way to get them mounted. I then run installworld and mergemaster in single-user mode, and reboot yet again to make sure everything is going to be fine. Even after doing all that on the test box, I still reboot to single user after doing installkernel on everything else, as not all the systems use the same drivers, so that particular kernel needs to be checked. http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message