From owner-freebsd-questions@FreeBSD.ORG Sat Mar 25 19:07:00 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6900B16A401 for ; Sat, 25 Mar 2006 19:07:00 +0000 (UTC) (envelope-from infofarmer@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.199]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8164143D6A for ; Sat, 25 Mar 2006 19:06:59 +0000 (GMT) (envelope-from infofarmer@gmail.com) Received: by zproxy.gmail.com with SMTP id 18so1471421nzp for ; Sat, 25 Mar 2006 11:06:59 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=VT8u8hkVhW5O+vEAESSPJh83u2VPieVuUQU491gaXJsJLUIXFmiG8RN/c2BnQPr+9Pyvzhge7RUsbCO4Ugfi37txX9KwPiDcW/2Uf7w+ZyoXmXG+650SftBCsJL6Y9lue9SqfnWK+ndGobfgG859iuWLBt90Df1HvxvkACoovhA= Received: by 10.37.18.12 with SMTP id v12mr563808nzi; Sat, 25 Mar 2006 11:06:58 -0800 (PST) Received: by 10.37.22.74 with HTTP; Sat, 25 Mar 2006 11:06:58 -0800 (PST) Message-ID: Date: Sat, 25 Mar 2006 22:06:58 +0300 From: "Andrew Pantyukhin" To: Chris In-Reply-To: <3aaaa3a0603240521w7fdb80c4h@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <44219364.1070201@chrismaness.com> <20060322183001.GA23540@xor.obsecurity.org> <4422B530.6090805@schultznet.ca> <4422C8A1.5010601@chrismaness.com> <3aaaa3a0603240521w7fdb80c4h@mail.gmail.com> Cc: Eric Schultz , Chris Maness , freebsd-questions@freebsd.org, Kris Kennaway Subject: Re: Remote Single User Mode? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Mar 2006 19:07:00 -0000 On 3/24/06, Chris wrote: > On 23/03/06, Chris Maness wrote: > > Eric Schultz wrote: > > > Kris Kennaway wrote: > > >> On Wed, Mar 22, 2006 at 10:11:48AM -0800, Chris Maness wrote: > > >>> I administer this box by remote. > > >> > > >> Look into setting up a serial console; this is the "remote single us= er > > >> mode" you're looking for. > > >> > > > Good morning... > > > > > > How remote is "remote"? > > > > > > If it's just down the hall you can probably get a DB25/DB9 (depending > > > on the machine) to RJ45 adapter and use existing CAT5 cable to get to > > > a serial console to your desk. There even exist serial RJ45 switch > > > boxes if you have several machines to "remote" administer. > > > > > > If it's farther than that, like in another building/city/etc. you can > > > always setup a modem on the box's serial port and dial in to that. > > > You'll need a modem at your end too, which means either an analog lin= e > > > or a analog-to-digital tap for your office phone. > > > > > > I have no idea whether there any serial-over-IP solutions. But you > > > could build one with FreeBSD!!! > > > > > I have a slave name server at the same location. Maybe I can run a > > serial cable with a crosover between the two of them. > > _______________________________________________ > > I think the docs are just playing safe, I admin over 10 servers and > have remote updated each one at least once, I have never had any > problems doing all this in multi user mode. > > make buildworld > make buildkernel > make installkernel > reboot > mergemaster -p > make installworld > mergemaster -iv > reboot > > Chris 5.4 =3D> 6.0 upgrade caused some problems on a box under high load until I used a serial console and did everything by the book.