From owner-freebsd-questions@FreeBSD.ORG Wed Dec 9 01:41:33 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 39B5E10656A6 for ; Wed, 9 Dec 2009 01:41:33 +0000 (UTC) (envelope-from fsb@thefsb.org) Received: from smtp234.iad.emailsrvr.com (smtp234.iad.emailsrvr.com [207.97.245.234]) by mx1.freebsd.org (Postfix) with ESMTP id 135B28FC0A for ; Wed, 9 Dec 2009 01:41:32 +0000 (UTC) Received: from relay13.relay.iad.mlsrvr.com (localhost [127.0.0.1]) by relay13.relay.iad.mlsrvr.com (SMTP Server) with ESMTP id 90F2E1CE4D9; Tue, 8 Dec 2009 20:41:32 -0500 (EST) Received: by relay13.relay.iad.mlsrvr.com (Authenticated sender: fsb-AT-thefsb.org) with ESMTPSA id 5AC531CA7DA; Tue, 8 Dec 2009 20:41:32 -0500 (EST) User-Agent: Microsoft-Entourage/12.10.0.080409 Date: Tue, 08 Dec 2009 20:41:31 -0500 From: Tom Worster To: Polytropon , Ivo Karabojkov Message-ID: Thread-Topic: won't boot after 8.0-RELEASE upgrade Thread-Index: Acp4cLtyUaPAMUfl4UyDbAMoZ2gBFQ== In-Reply-To: <20091208232158.f532a1bc.freebsd@edvax.de> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: won't boot after 8.0-RELEASE upgrade 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: Wed, 09 Dec 2009 01:41:33 -0000 On 12/8/09 5:21 PM, "Polytropon" wrote: > On Tue, 8 Dec 2009 14:09:16 -0800 (PST), Ivo Karabojkov > wrote: >> So I'd like to know how >> to distinguish mode of my current filesystems - is it standard or >> dangerously dedicated? > > If you've first created a slice on the disk, and then > partitions inside the slice, it's standard mode, e. g. > > ad0 a b d e f g > { [ (/) (swap) (/tmp) (/var) (/usr) (/home) ] } > s1 > > If you've omitted the slice, and created the partitions > on the disk device itself, it's dangerosly dedicated mode, e. g. > > ad0 > { (/) (swap) (/tmp) (/var) (/usr) (/home) } > a b d e f g > > You can tell by the existence of ad0s1[adefg] vs. ad0[adefg] > in /dev, or by trying to print the disks's slice table. thank you. that's good to know. now that i know that my machine was not using DD mode before the upgrade to 8.0, it seems there ought to be a chance to make it boot. the boot loader can see the partitions ad4s1[abdef] but the 8.0 kernel that was installed with freebsd-update can't. isn't there some trick with dd to zero out the geom metadata and makes the partitions look like ordinary again? (i was about 30 hours into copying the data off the disk to another machine when my router died so i'm back at square 1 now, which was described in my email at 11.14am est on dec 3rd.)