From owner-freebsd-fs@FreeBSD.ORG Fri Aug 2 06:21:15 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 5B8A8881 for ; Fri, 2 Aug 2013 06:21:15 +0000 (UTC) (envelope-from tjg@ucsc.edu) Received: from mail-oa0-x22f.google.com (mail-oa0-x22f.google.com [IPv6:2607:f8b0:4003:c02::22f]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 26954264B for ; Fri, 2 Aug 2013 06:21:15 +0000 (UTC) Received: by mail-oa0-f47.google.com with SMTP id g12so576070oah.34 for ; Thu, 01 Aug 2013 23:21:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ucsc.edu; s=ucsc-google; h=mime-version:date:message-id:subject:from:to:content-type; bh=SenOEBeLXAHz7ccV5/r2fx8X3Ogw8mVDjwVWJzkovmY=; b=D+iWyWUuAsu7mhF5I6DscjNuPqwsmjoSHtOmN7Sss7ILrk0eGXuz0SEM+DId4TpLSY MYdmA/BXYflFPhMkJVDyuoYUDdWhAlfACTdjfxcJg63Ej+hf042IljADv2ONwgkAqe4U mvSLDl3JXUZbvq20DzGaRawjQVXEnwkkBNI2E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type :x-gm-message-state; bh=SenOEBeLXAHz7ccV5/r2fx8X3Ogw8mVDjwVWJzkovmY=; b=PHWC7kdaBDoThOEy0cATNXGsMFfuppa7uJh7WtthVx/aXZoIsYUzp2CRFaRNKGZCpe PYaUkxLz0d+ZQZwU/yGlSWLzeh7W5ykz8ipqXO0wh9OOx3z8gNkR3U/hUpD1kiLU7kZ+ F9IPwJ3vUL+twINgxLfsG6+2ijNPLdHRCs9FYeOxFOkjwrsCsJeFi8INbzyZUvg7noBb vEL4C4BD05gOK3QiIwYFim7my2RbBm41ALbg/ZrU16klNdMWNEzqKAB2Fdx8+C/IXZ14 S7Hqn8JBXCdee+/J4tlMqNWtcP04r/OJhBfzqbtljoKFEwuaWzBG5IwrIfxp9AAPYoP2 OPjg== MIME-Version: 1.0 X-Received: by 10.42.250.148 with SMTP id mo20mr488961icb.34.1375424473612; Thu, 01 Aug 2013 23:21:13 -0700 (PDT) Received: by 10.42.233.143 with HTTP; Thu, 1 Aug 2013 23:21:13 -0700 (PDT) Date: Thu, 1 Aug 2013 23:21:13 -0700 Message-ID: Subject: ZFS: unsupported ZFS version 5000 (should be 28) From: Tim Gustafson To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Gm-Message-State: ALoCoQl0GfC7kiaSaia8EltkVr+61JqqVpv1L3i+K2BZAFFsKoAwzKANa7fyUgkZyDJFYADNvYO3 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: Fri, 02 Aug 2013 06:21:15 -0000 I recently rebuilt my FreeBSD 8.4 OS and rebooted, and when the system came back up, it refused to mount the zpool because: ZFS: unsupported ZFS version 5000 (should be 28) I didn't upgrade my zpool as far as I know. I tried booting off the latest 9.1 snapshot, but it also says that the zpool has a too-new version number and won't import it. I Google around and found a post about using gpart to update the boot code, which I tried with both the newest 8.4 release and also the newest 9.1 snapshot, just to make sure something wonky didn't happen with the disks. The good news is that I have relatively recent backups (yesterday evening) for this system, but I'm still totally confused as to what the heck happened. Is there some magic that I can type into a live boot CD to fix this problem without rebuilding the whole machine? -- Tim Gustafson tjg@ucsc.edu 831-459-5354 Baskin Engineering, Room 313A