From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C0D6C3A5A3 for ; Tue, 27 Aug 2019 09:33:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F123121872 for ; Tue, 27 Aug 2019 09:33:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BvrQNA9A" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729169AbfH0Jdb (ORCPT ); Tue, 27 Aug 2019 05:33:31 -0400 Received: from mail-wm1-f48.google.com ([209.85.128.48]:50758 "EHLO mail-wm1-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729087AbfH0Jdb (ORCPT ); Tue, 27 Aug 2019 05:33:31 -0400 Received: by mail-wm1-f48.google.com with SMTP id v15so2333635wml.0 for ; Tue, 27 Aug 2019 02:33:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:message-id:date:user-agent:mime-version :content-transfer-encoding; bh=bJ2QyIWqENyTT2hWJJohBUOKSFcc0b/uY0usNC2JmYE=; b=BvrQNA9AiTFzEoZtQQoGkAKnz/f3BOANBGrwUpAvgqMY9DjEnJwSq70U1sglpJyuxE VO/4ncfhHsDPV3muI5hULEnvBDM+U7eW8ur2bHIuoJSLQcdiX78Qz52omzS64xAbxskO qDLk+zzwaZuheC+PzwtZy7JnyX3aAKts4CY+CC8iu0PQmXjrqKaKJHdiw7CcKMulDF6k y/gS8LGkRtjWHUYhee2SMqorQk1z7r6ESJ8vDi/q+rdb7h1mzPPGJcXj8YoMcUlduJ4Z q8QJrZlgAyVhyMBcu4nN12dq7YLcvNQHY71/rx0hxdji3ijFS7aCW8hw5Sqdc32Yz8mS 3QLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:message-id:date:user-agent :mime-version:content-transfer-encoding; bh=bJ2QyIWqENyTT2hWJJohBUOKSFcc0b/uY0usNC2JmYE=; b=tWsFoM6svqejEI6bcVlz3I0rIn1jvuISr7xDHfPU7Aon2vUKPFKb/caC3xvC+JvZgi DSMb9aEliETTa5cb5FIgzpq9TLzX5zizIkQbQgvykmRFzQ9lMnYBc2p3Wqt8R5IItjYi I+Blhf0ASXGvAUxWWPFX3PIozu5PuZW/f4BvmAncjoUqBVkRWWP0BDOeBGh9U7o1JpcW VUkK+pam6nsQz3Kzh7GpsFkFwF8ERUDRHDjOGCzm1fuu2lbebXqMq2L82+Ptgpk1aroo Is9qeY4la6Hujx/ROamST3gn7NoonqGUnY6HbgmOiUBWvVKMSkqbg6NHI1DqtFhzuFeY 1Klg== X-Gm-Message-State: APjAAAV5fwK/JSBWs1+Hn3bfo/qUMv1EphcZL13j/S3wVsggssC/iSZ8 0NIdNDTZW3tYrwSy/0LGWqs+5kb9 X-Google-Smtp-Source: APXvYqzvEv3TGQrPFrup5o7hN66+02B4quGSVTgO5ocnK5xcU/bBWCl264WDF2vCCg4lI7GRUJX2sg== X-Received: by 2002:a1c:7c06:: with SMTP id x6mr27475511wmc.133.1566898408286; Tue, 27 Aug 2019 02:33:28 -0700 (PDT) Received: from [10.19.90.60] ([193.16.224.12]) by smtp.gmail.com with ESMTPSA id m7sm4202558wmi.18.2019.08.27.02.33.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 27 Aug 2019 02:33:27 -0700 (PDT) From: Thomas Schneider <74cmonty@gmail.com> Subject: No files in snapshot To: linux-btrfs@vger.kernel.org Message-ID: Date: Tue, 27 Aug 2019 11:33:27 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi, I'm running Debian 10 with btrfs-progs=5.2.1. Creating snapshots with snapper=0.8.2 works w/o errors. root@ld5507:~# uname -r 5.0.18-1-pve root@ld5508:~# btrfs fi show Label: none  uuid: 70997a0b-a36f-46cf-9ddc-b88d47eabc9e         Total devices 1 FS bytes used 11.17GiB         devid    1 size 192.53GiB used 22.02GiB path /dev/sdbq3 root@ld5507:~# btrfs fi df / Data, single: total=18.00GiB, used=10.71GiB System, DUP: total=8.00MiB, used=16.00KiB Metadata, DUP: total=2.00GiB, used=465.84MiB GlobalReserve, single: total=68.03MiB, used=0.00B However, I run into an issue and need to restore various files. I thought that I could simply take the files from a snapshot created before. However, the files required don't exist in any snapshot! Therefore I have created a new snapshot manually to verify if the files will be included, but there's nothing. These files are required: root@ld5507:/usr/bin# ls -l /var/lib/ceph/osd/ceph-4/ insgesamt 56 -rw-r--r-- 1 root root 402 Jun  7 12:18 activate.monmap -rw-r--r-- 1 ceph ceph   3 Jun  7 12:18 active lrwxrwxrwx 1 ceph ceph  58 Jun  7 12:18 block -> /dev/disk/by-partuuid/3bc0c812-2c6b-4544-bbe7-e0444c3448eb -rw-r--r-- 1 ceph ceph  37 Jun  7 12:18 block_uuid -rw-r--r-- 1 ceph ceph   2 Jun  7 12:18 bluefs -rw-r--r-- 1 ceph ceph  37 Jun  7 12:18 ceph_fsid -rw-r--r-- 1 ceph ceph  37 Jun  7 12:18 fsid -rw------- 1 ceph ceph  56 Jun  7 12:18 keyring -rw-r--r-- 1 ceph ceph   8 Jun  7 12:18 kv_backend -rw-r--r-- 1 ceph ceph  21 Jun  7 12:18 magic -rw-r--r-- 1 ceph ceph   4 Jun  7 12:18 mkfs_done -rw-r--r-- 1 ceph ceph   6 Jun  7 12:18 ready -rw-r--r-- 1 ceph ceph   3 Aug 23 09:56 require_osd_release -rw-r--r-- 1 ceph ceph   0 Aug 21 12:41 systemd -rw-r--r-- 1 ceph ceph  10 Jun  7 12:18 type -rw-r--r-- 1 ceph ceph   2 Jun  7 12:18 whoami And there are not files in latest snapshot: root@ld5507:/usr/bin# ls -l /btrfs/@snapshots/158/snapshot/var/lib/ceph/osd/ceph-4/ insgesamt 0 Why is this? THX