From owner-freebsd-stable@FreeBSD.ORG Fri Sep 17 14:21:47 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 D0ED0106566C for ; Fri, 17 Sep 2010 14:21:47 +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 ED70D8FC12 for ; Fri, 17 Sep 2010 14:21:45 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.56,383,1280692800"; d="p7s'?scan'208";a="977008" Received: from mail.ksu.ru (HELO ruby.ksu.ru) ([193.232.252.56]) by iport2.ksu.ru with ESMTP; 17 Sep 2010 18:21:32 +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 o8HEL715004281; Fri, 17 Sep 2010 14:21:07 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 o8HEKZN7037432; Fri, 17 Sep 2010 18:20:35 +0400 (MSD) (envelope-from amarat@ksu.ru) Message-ID: <4C937933.4060707@ksu.ru> Date: Fri, 17 Sep 2010 18:20:35 +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: <201009171238.o8HCcwCl084727@lurza.secnetix.de> <4C93674B.20300@ksu.ru> In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms080004020109060702010503" 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: Fri, 17 Sep 2010 14:21:48 -0000 This is a cryptographically signed message in MIME format. --------------ms080004020109060702010503 Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: quoted-printable Michael Sperber wrote: > > "Marat N.Afanasyev" writes: > >> Michael Sperber wrote: >>> >>> Oliver Fromme writes: >>> >>>> Michael Sperber wrote: >>>> > I just upgraded my desktop system from 7.3 to 8.1, and the ma= in hard >>>> > drive, which was /dev/ad6 before is now /dev/ad10. Consequen= tly, 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 ser= ver with >>>> > only a serial console, and I worry that the upgrade is going = to leave me >>>> > with a dead machine. Is there any way to predict how the dri= ve number >>>> > changes? (Why does it change at all?) If so, what's the pro= per way to >>>> > tell the system the initial root device *before* rebooting? >>>> >>>> Remove "options ATA_STATIC_ID" from your kernel config >>>> before building the new kernel and rebooting. Then your >>>> first disk will be ad0, no matter what controller and >>>> channel it is connected to. Be sure to update your >>>> /etc/fstab file. >>> >>> Ah, excellent - that's what I was looking for. Thanks! >>> >> beware of drago^Wchanging of adX numbers each time you add/remove >> drive ;) It's better to label filesystems, imho ;) > > This is a rented server, so I no drive will ever be removed or added. > On the other hand, if I understand it correctly, I'll need to unmount > the root partition in order to label it - right? > you may try the following commands: sysctl kern.geom.debugflags=3D16 foreach fs (your-filesystems) glabel label your-$fs-label your-$fs-device end echo geom_label_load=3D"YES" >> /boot/loader.conf reboot and see if the labels appear in /dev/label --=20 SY, Marat --------------ms080004020109060702010503--