From owner-freebsd-stable@FreeBSD.ORG Thu Sep 16 09:47:53 2010 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 22FC31065696 for ; Thu, 16 Sep 2010 09:47:53 +0000 (UTC) (envelope-from amarat@ksu.ru) Received: from mx7.ksu.ru (honey.ksu.ru [193.232.252.54]) by mx1.freebsd.org (Postfix) with ESMTP id 22CF98FC17 for ; Thu, 16 Sep 2010 09:47:51 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.56,375,1280692800"; d="p7s'?scan'208";a="966470" Received: from mail.ksu.ru (HELO ruby.ksu.ru) ([193.232.252.56]) by iport2.ksu.ru with ESMTP; 16 Sep 2010 13:18:32 +0400 X-Pass-Through: Kazan State University Network Received: from zealot.ksu.ru ([194.85.245.161]) by ksu.ru (8.13.4/8.13.4) with ESMTP id o8G9IBuJ005695; Thu, 16 Sep 2010 09:18:11 GMT Received: from zealot.ksu.ru (localhost.lnet [127.0.0.1]) by zealot.ksu.ru (8.14.4/8.14.4) with ESMTP id o8G9HeAc024380; Thu, 16 Sep 2010 13:17:40 +0400 (MSD) (envelope-from amarat@ksu.ru) Message-ID: <4C91E0B4.2090103@ksu.ru> Date: Thu, 16 Sep 2010 13:17:40 +0400 From: "Marat N.Afanasyev" User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.11) Gecko/20100724 Firefox/3.0.7 MIME-Version: 1.0 To: Michael Sperber References: In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms050302020108050902030101" X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: How to predict drive number change for 7.3->8.1 upgrade? 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: Thu, 16 Sep 2010 09:47:53 -0000 This is a cryptographically signed message in MIME format. --------------ms050302020108050902030101 Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: quoted-printable Michael Sperber wrote: > > I just upgraded my desktop system from 7.3 to 8.1, and the main hard > drive, which was /dev/ad6 before is now /dev/ad10. Consequently, the > initial boot failed when trying to mount the root file system from ad6.= > > The desktop system is now fixed, but I also have a rented server with > only a serial console, and I worry that the upgrade is going to leave m= e > with a dead machine. Is there any way to predict how the drive number > changes? (Why does it change at all?) If so, what's the proper way to= > tell the system the initial root device *before* rebooting? > you may try to label your slices/labels and mount /dev/label/root=20 instead of /dev/adXsYa see man 8 glabel --=20 SY, Marat --------------ms050302020108050902030101--