From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:59130 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751296AbbDZPUc (ORCPT ); Sun, 26 Apr 2015 11:20:32 -0400 Received: from svh-gw.merlins.org ([173.11.111.145]:48576 helo=legolas.merlins.org) by mail1.merlins.org with esmtps (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80 #2) id 1YmOLo-0004KB-GV for ; Sun, 26 Apr 2015 08:20:11 -0700 Received: from merlin by legolas.merlins.org with local (Exim 4.80) (envelope-from ) id 1YmOLn-0007Cj-RC for linux-btrfs@vger.kernel.org; Sun, 26 Apr 2015 08:20:07 -0700 Date: Sun, 26 Apr 2015 08:20:07 -0700 From: Marc MERLIN To: linux-btrfs@vger.kernel.org Message-ID: <20150426152007.GA27173@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: raid0 needs mounting alternate device every boot? open_ctree failed (3.19.5) Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is the weirdest thing: gargamel:/var/log# mount /dev/mapper/raid0d2 /mnt/btrfs_space mount: wrong fs type, bad option, bad superblock on /dev/mapper/raid0d2, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so [ 835.718898] BTRFS info (device dm-5): disk space caching is enabled [ 835.778580] BTRFS: failed to read the system array on dm-5 [ 835.819223] BTRFS: open_ctree failed gargamel:/var/log# mount /dev/mapper/raid0d1 /mnt/btrfs_space [ 847.047607] BTRFS: device label btrfs_space devid 1 transid 40929 /dev/mapper/raid0d1 [ 847.073955] BTRFS info (device dm-4): disk space caching is enabled The previous boot, I had to mount raid0d2 because raid0d1 didn't work. Label: 'btrfs_space' uuid: 01334b81-c0db-4e80-92e4-cac4da867651 Total devices 2 FS bytes used 401.54GiB devid 1 size 836.13GiB used 295.02GiB path /dev/mapper/raid0d1 devid 2 size 836.13GiB used 295.01GiB path /dev/mapper/raid0d2 Data, RAID0: total=580.00GiB, used=398.22GiB System, RAID1: total=8.00MiB, used=64.00KiB System, single: total=4.00MiB, used=0.00B Metadata, RAID1: total=5.00GiB, used=3.08GiB Metadata, single: total=8.00MiB, used=0.00B GlobalReserve, single: total=512.00MiB, used=0.00B Those are 2 crypted disks which are already decrypted by the time I try to mount them, I just don't understand why btrfs fails if I mount one device but works with the other one, or the other way around. Any idea what could be causing this? Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901