From owner-freebsd-fs@FreeBSD.ORG Tue Aug 6 11:26:40 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 7ACD27FD for ; Tue, 6 Aug 2013 11:26:40 +0000 (UTC) (envelope-from tevans.uk@googlemail.com) Received: from mail-la0-x230.google.com (mail-la0-x230.google.com [IPv6:2a00:1450:4010:c03::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id F19BE2887 for ; Tue, 6 Aug 2013 11:26:39 +0000 (UTC) Received: by mail-la0-f48.google.com with SMTP id hi8so191549lab.35 for ; Tue, 06 Aug 2013 04:26:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ahog9HSY7gdhSAkpoQL3ueoDzLF5Bk/AwQwmCD00Bps=; b=mGTnk41+PhP7Ufs6F47Btdrc0kOmK4PsM/XbV6BlN6H6849Z3kq1xBXMojvUo12iGv FSAVlbF6Qm4LYmx4rRvXPFs81ccF6n0WgUYfKzuIwl30z/BMirrDLPNBlpfknXAOjyVK 5vKx9iADocnbx2W2al0hLzDqJxWMHk1P3q2Cz5wJkSzpFhNW1M3DMvM2cPa4nsclHj/O 8tnL8OX6KcH6G2Iyk5Kdv5YAOeB8wc1xs8AcBmbUSBavpo5iyPeWRnPuU6uDMgttv0F4 546Hn7zLQ5uOLMc0Y+YBLlPbctHts+LjC2gDomyLbcSl5O/VuQVt7VsxEzTItU32p7aS sSpw== MIME-Version: 1.0 X-Received: by 10.112.20.200 with SMTP id p8mr989635lbe.87.1375788397812; Tue, 06 Aug 2013 04:26:37 -0700 (PDT) Received: by 10.112.201.41 with HTTP; Tue, 6 Aug 2013 04:26:37 -0700 (PDT) In-Reply-To: References: <51FBC806.3070500@egr.msu.edu> Date: Tue, 6 Aug 2013 12:26:37 +0100 Message-ID: Subject: Re: ZFS: unsupported ZFS version 5000 (should be 28) From: Tom Evans To: Tim Gustafson Content-Type: text/plain; charset=UTF-8 Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Aug 2013 11:26:40 -0000 On Mon, Aug 5, 2013 at 8:20 PM, Tim Gustafson wrote: > I wanted to report back to the group about how I was able to get past > this problem. > > A quick re-cap of what happened: > > - A few weeks ago, we upgraded from 8.2 to 8.4 using the Subversion > repository at http://svn.freebsd.org/base/releng/8.4 > > - On Thursday last week, I fat-fingered a command that caused /usr to > be dismounted > > - I rebooted into single-user mode, fixed /usr, and rebooted > successfully back into multi-user mode > > - Just to make sure that nothing in /usr got clobbered, I did a "make > buildworld buildkernel installkernel installworld" > > - Upon rebooting after the buildworld procedure, the system reported > that the zpool version (5000/28) was too new > > So, somehow among all that, the zpool got upgraded to a new version. > I'm not sure how that's possible, given that at no time were we > running a beta version of any OS up to this point. You should be able to determine when the pool was upgraded by checking zpool history, given that you have ZFS working again. Even if you were running the very tip of 10-CURRENT, the pool would only be upgraded if "zpool ugrade " was run. Cheers Tom