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=-5.6 required=3.0 tests=BAYES_00,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 B0A42C433E1 for ; Mon, 13 Jul 2020 19:46:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BBDA2068F for ; Mon, 13 Jul 2020 19:46:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mJ5cZcdx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726794AbgGMTqj (ORCPT ); Mon, 13 Jul 2020 15:46:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726339AbgGMTqj (ORCPT ); Mon, 13 Jul 2020 15:46:39 -0400 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45CDCC061755 for ; Mon, 13 Jul 2020 12:46:39 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id f18so996905wml.3 for ; Mon, 13 Jul 2020 12:46:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:from:subject:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=jOmu568DV3iG/AmMbO3DvgHJhR/XcjURrvUnadhB8EI=; b=mJ5cZcdxnNKzG/EHwV6iiT/isruajnhBxkxBstwdcA+Xjuf7EDsoNDJ8cJp1ZEargX uGTDPWhqiO5HfgBPlPVmhjiDUwYb6GEuS2YB5nDmtRgvfjgSrISHoepI2sYwSKZs8lLQ TcGWf6yXhIj3rCuliVvAraFBaHFnytxa1O59Fgcj1k8YTffKzhgIAZfZ4GyXOPtH/MgA slP+GDjEz74I3FRVz6wCuezgAAskxp2fbeVTVXY95V8y+QskvXWwnypg4lj+4vQecASj zgJAi/EpQ0oa7njrRGsEPxQHWwo8AuBgE/uCPBpWx54rmvlSNjBaRJtLypM/Jdjog3EI 28FQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=jOmu568DV3iG/AmMbO3DvgHJhR/XcjURrvUnadhB8EI=; b=iQJEemK3odN3M/MXoevjpQ5nFgpYdUeChjJrSME+tslJO6YxQ387YtmzICqX1miVlH 3BbSEgyhcjf1Idrvut4djue0bfkMfdz3swj5aJADzPP9l39MjtwMdF+kQGd/JllpGLOY u8t1RrLYaDQYsq9wRtuzC/yuCyf3+eNsGhuq2vovUD93J71E9VUVG2/bejId6CFFq4Dc K6LaH712HQP8rQUg7bWZfYjpH7cRAArpsd5S08Ap4bksd5IgEWZDMg4gmZ7uryc/ih/9 IgpgNziHXOB+7d8C15DAKmHhe34EzfHP6qsKzo97fB0RhoE0tku8Z4wjf5L6mtvW6usm ccAA== X-Gm-Message-State: AOAM531QWcts4NMZBXqCRC60N9pzPdC2kOa5K3OJwBRSBwVnRiRf+Yh0 KjDdZKjUh6QNCHLsqZIu4ksWWTum X-Google-Smtp-Source: ABdhPJzf94kLjoUHb9ngc0XxXNgd4utrdGwBI7SartazSqsLG0cQN9eAoQ6Jj0SbQNDAp76+DlNAXw== X-Received: by 2002:a7b:cc85:: with SMTP id p5mr989409wma.18.1594669597605; Mon, 13 Jul 2020 12:46:37 -0700 (PDT) Received: from [192.168.1.145] ([213.147.166.105]) by smtp.googlemail.com with ESMTPSA id u17sm24392443wrp.70.2020.07.13.12.46.36 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 13 Jul 2020 12:46:37 -0700 (PDT) To: linux-btrfs@vger.kernel.org From: Christian Zangl Subject: "missing data block" when converting ext4 to btrfs Message-ID: <90fff9c0-36c5-d45c-d19b-01294fc93b1e@gmail.com> Date: Mon, 13 Jul 2020 21:46:35 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org I am on a test VM where I am trying to convert a second disk to btrfs. The conversion fails with the error missing data block for bytenr 1048576 (see below). I couldn't find any information about the error. What can I do to fix this? $ fsck -f /dev/sdb1 fsck from util-linux 2.35.2 e2fsck 1.45.6 (20-Mar-2020) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/sdb1: 150510/4194304 files (0.5% non-contiguous), 2726652/16777216 blocks $ btrfs-convert /dev/sdb1 create btrfs filesystem: blocksize: 4096 nodesize: 16384 features: extref, skinny-metadata (default) checksum: crc32c creating ext2 image file ERROR: missing data block for bytenr 1048576 ERROR: failed to create ext2_saved/image: -2 WARNING: an error occurred during conversion, filesystem is partially created but not finalized and not mountable $ uname -a Linux t-arch 5.7.7-arch1-1 #1 SMP PREEMPT Wed, 01 Jul 2020 14:53:16 +0000 x86_64 GNU/Linux $ btrfs --version btrfs-progs v5.7