From owner-freebsd-fs@FreeBSD.ORG Wed May 2 12:14:45 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 1924E1065672 for ; Wed, 2 May 2012 12:14:45 +0000 (UTC) (envelope-from peter.maloney@brockmann-consult.de) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.9]) by mx1.freebsd.org (Postfix) with ESMTP id 9CDFB8FC0A for ; Wed, 2 May 2012 12:14:44 +0000 (UTC) Received: from [10.3.0.26] ([141.4.215.32]) by mrelayeu.kundenserver.de (node=mreu2) with ESMTP (Nemesis) id 0Mao5W-1Sjz1F2Dk2-00KOzE; Wed, 02 May 2012 14:14:43 +0200 Message-ID: <4FA12533.2080102@brockmann-consult.de> Date: Wed, 02 May 2012 14:14:43 +0200 From: Peter Maloney User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120312 Thunderbird/11.0 MIME-Version: 1.0 To: freebsd-fs@freebsd.org References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:P3vHf50V7542ESGR3w3IqkI4wF1SdiL9hSgJa10x4Xv k+/YVez2eqYDYj/n/QFceRVF9P2Mw+kiomPAUezkYZn+mhEPTN tsKchGiFZZ4K2REM0h/zHiaHOpO0kWLqva8FafHO+aiHXpMp2G bcc/jVAkfx9SVRVW7oxlR7gaud6R1Ygstg7ltYeKIyGVXXzQ0x UNz8z7zsH8C48MCQ0QcUGclIxe5q/GRQIjYaC6JJ9392mt6RCW OZ2kiCzbkvHFXejXwiIHwTRXsaLk0vDAa0EfS4XhFpd8m87hwE tcPzS+L3/jxCVIEOWizh4tWir32d8i/mFpawlpnVFBb8PDF2Sr 9t3dAI9azVDxM/TueGxOjCBg3xRfLuTRNbKPXt4/h Subject: Re: urgent system suddenly boot failed due to ZFS:i/o error on FreeBSD 8.2 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 May 2012 12:14:45 -0000 This happened to me when my root pool had an active hot spare. I later tested it on a virtual machine, and even with non-spare disks added, the system did the same thing. Here is my PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=167065 kern/167065 My solution was to boot on a DVD, and then "zpool detach" the bad disk (which converted the spare to a normal mirror). On 05/02/2012 02:03 PM, suken woo wrote: > hi,lists > for some reasons I need restart system but it suddenly boot failed today. > here is the error: > ZFS: i/o error - all block copies unavailable > ZFS: can't read object set for dataset 16 > Can't find root filesystem - giving up > ZFS:unexcepted object set type 0 > ZFS:unexcepted object set type 0 > > FreeBSD/i386 boot > Default: zroot:/boot/kernel/kernel > boot: > ZFS:unexcepted object set type0 > > FreeBSD/i386 boot > Default: zroot:/boot/kernel/kernel > boot: _ > > any ideas to resolved it? > thanks in advance > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" -- -------------------------------------------- Peter Maloney Brockmann Consult Max-Planck-Str. 2 21502 Geesthacht Germany Tel: +49 4152 889 300 Fax: +49 4152 889 333 E-mail: peter.maloney@brockmann-consult.de Internet: http://www.brockmann-consult.de --------------------------------------------