Return-Path: Received: from vm136.rz.uni-osnabrueck.de ([131.173.16.11]:40308 "EHLO smtp-auth.serv.Uni-Osnabrueck.DE" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753001AbaJ0NpW (ORCPT ); Mon, 27 Oct 2014 09:45:22 -0400 Received: from flach.fritz.box (ip4d160011.dynamic.kabel-deutschland.de [77.22.0.17]) (authenticated bits=0) by smtp-auth.serv.Uni-Osnabrueck.DE (8.13.8/8.13.8) with ESMTP id s9RDNJH2026237 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Mon, 27 Oct 2014 14:23:21 +0100 Message-ID: <544E4747.2000008@uni-osnabrueck.de> Date: Mon, 27 Oct 2014 14:23:19 +0100 From: Ansgar Hockmann-Stolle MIME-Version: 1.0 To: linux-btrfs@vger.kernel.org Subject: btrfs unmountable: read block failed check_tree_block; Couldn't read tree root Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi! My btrfs system partition went readonly. After reboot it doesnt mount anymore. System was openSUSE 13.1 Tumbleweed (kernel 3.17.??). Now I'm on openSUSE 13.2-RC1 rescue (kernel 3.16.3). I dumped (dd) the whole 250 GB SSD to some USB file and tried some btrfs tools on another copy per loopback device. But everything failed with: kernel: BTRFS: failed to read tree root on dm-2 See http://pastebin.com/raw.php?i=dPnU6nzg. Any hints where to go from here? Ciao Ansgar -- Ansgar Hockmann-Stolle, Universität Osnabrück, Rechenzentrum Albrechtstraße 28, 49076 Osnabrück, Deutschland, Raum 31/E77B +49 541 969-2749 (fax -2470), http://www.home.uos.de/anshockm