From owner-freebsd-stable@FreeBSD.ORG Wed May 6 20:14:44 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8CA40106566B for ; Wed, 6 May 2009 20:14:44 +0000 (UTC) (envelope-from byshenknet@byshenk.net) Received: from core.byshenk.net (core.byshenk.net [62.58.73.230]) by mx1.freebsd.org (Postfix) with ESMTP id 24E8F8FC08 for ; Wed, 6 May 2009 20:14:43 +0000 (UTC) (envelope-from byshenknet@byshenk.net) Received: from core.byshenk.net (localhost.aoes.com [127.0.0.1]) by core.byshenk.net (8.14.3/8.14.3) with ESMTP id n46KEgtX048868; Wed, 6 May 2009 22:14:42 +0200 (CEST) (envelope-from byshenknet@core.byshenk.net) Received: (from byshenknet@localhost) by core.byshenk.net (8.14.3/8.14.3/Submit) id n46KEgEh048867; Wed, 6 May 2009 22:14:42 +0200 (CEST) (envelope-from byshenknet) Date: Wed, 6 May 2009 22:14:42 +0200 From: Greg Byshenk To: Helmut Schneider Message-ID: <20090506201442.GR1550@core.byshenk.net> References: <4A01630A.5080201@ksu.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Spam-Status: No, score=-1.4 required=5.0 tests=ALL_TRUSTED autolearn=failed version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on core.byshenk.net Cc: freebsd-stable@freebsd.org Subject: Re: [7.2] R/W mount of / denied. Filesystem not clean - run fsck. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 May 2009 20:14:44 -0000 On Wed, May 06, 2009 at 09:18:02PM +0200, Helmut Schneider wrote: > Marat N.Afanasyev wrote: > >Helmut Schneider wrote: > >>I do have such thing (IBM Blade Center) but I'm looking for something to > >>avoid the situation above. Something that lets me at least boot into > >>single user mode. > >if you have an ip-kvm you can drop into single-user and fsck any disk you > >have. all you need to do is to choose 'single user' from beastie-menu. or > >start kernel with -s parameter > I *do* now how to enter single user mode but the kernel panic'ed *before* > the shell started. :) The problem is that, if something is so far wrong that you can't even get to the single-user shell, then there probably isn't anything else but rescue. One thing that might be an option: at work, we use PXE for Linux and FreeBSD installs, so one thing I've done is to create a pxeboot rescue image (using the mfsroot from the rescue CD). This means that, if there is this sort of problem, we can boot into rescue mode from the network (the BIOS is also redirected to the serial console) and not have to worry about swapping CDs. The same thing should also work for remote locations. -- greg byshenk - gbyshenk@byshenk.net - Leiden, NL