From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp23.services.sfr.fr ([93.17.128.21]:61005 "EHLO smtp23.services.sfr.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759308Ab3DIRwn (ORCPT ); Tue, 9 Apr 2013 13:52:43 -0400 Message-ID: <51645567.7060807@free.fr> Date: Tue, 09 Apr 2013 19:52:39 +0200 From: Maxime Nicco MIME-Version: 1.0 To: cwillu CC: linux-btrfs@vger.kernel.org Subject: Re: Bad tree block, on root filesystem after reset References: <51644D81.4090400@free.fr> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Le 09/04/2013 19:42, cwillu a écrit : > On Tue, Apr 9, 2013 at 11:18 AM, Maxime Nicco > wrote: > > Hi, > > Today my laptop messed-up my display configuration between 2 > screens. I had to reset it, but my btrfs root partition is no longer > mountable. > I have the following output in dmesg : > > > What kernel is this on, and have you tried mounting with -o recovery? Oups i forgot to mention my kernel, my system was on 3.8, and i work from a live cd in 3.5. I already tried mounting with -o recovery, here the result # mount -t btrfs -o recovery /dev/sda2 /mnt/sda2 mount: wrong fs type, bad option, bad superblock on /dev/sda2, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so the dmesg look like this device fsid f9264db3-f277-47b6-bd8f-57d0a67c93a7 devid 1 transid 78577 /dev/sda2 btrfs bad tree block start 0 18565984256 btrfs bad tree block start 0 18565984256 btrfs: enabling auto recovery btrfs: failed to read tree root on sda2 btrfs bad tree block start 0 18565984256 btrfs bad tree block start 0 18565984256 btrfs: failed to read tree root on sda2 parent transid verify failed on 18563280896 wanted 78576 found 78578 parent transid verify failed on 18563280896 wanted 78576 found 78578 btrfs read error corrected: ino 1 off 18563280896 (dev /dev/sda2 sector 38894232) btrfs: failed to read tree root on sda2 btrfs bad tree block start 0 18565726208 btrfs bad tree block start 0 18565726208 btrfs: failed to read tree root on sda2 btrfs bad tree block start 0 18564616192 btrfs bad tree block start 0 18564616192 btrfs: failed to read tree root on sda2 btrfs: open_ctree failed