Date: Wed, 02 May 2012 14:14:43 +0200 From: Peter Maloney <peter.maloney@brockmann-consult.de> To: freebsd-fs@freebsd.org Subject: Re: urgent system suddenly boot failed due to ZFS:i/o error on FreeBSD 8.2 Message-ID: <4FA12533.2080102@brockmann-consult.de> In-Reply-To: <CAOrwyN3C4N0=_%2B0j2SpPmH7jmJ4=H9EFv6euKL_PrY1sTzTy_Q@mail.gmail.com> References: <CAOrwyN3C4N0=_%2B0j2SpPmH7jmJ4=H9EFv6euKL_PrY1sTzTy_Q@mail.gmail.com>
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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 --------------------------------------------
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