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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 425D0C04AB4 for ; Tue, 14 May 2019 14:28:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1D10621473 for ; Tue, 14 May 2019 14:28:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726179AbfENO2r (ORCPT ); Tue, 14 May 2019 10:28:47 -0400 Received: from mx2.suse.de ([195.135.220.15]:59100 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726174AbfENO2r (ORCPT ); Tue, 14 May 2019 10:28:47 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 47AB1AED5; Tue, 14 May 2019 14:28:46 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Tue, 14 May 2019 16:28:45 +0200 From: Roman Penyaev To: Manuel Bentele Cc: Hannes Reinecke , linux-block@vger.kernel.org, linux-block-owner@vger.kernel.org Subject: Re: Adding QCOW2 reading/writing support In-Reply-To: <762bceb9-c66c-0a45-7d6b-e5ed0df56cbf@web.de> References: <60bbe5e0-317d-8ead-0eb8-d1dc79927bc8@web.de> <762bceb9-c66c-0a45-7d6b-e5ed0df56cbf@web.de> Message-ID: <7a74dd35a390df25f2874aa7b4f8547e@suse.de> X-Sender: rpenyaev@suse.de User-Agent: Roundcube Webmail Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 2019-04-17 23:53, Manuel Bentele wrote: [cut] > If you have an idea to solve the opposition for file formats that are > acting as a container or virtual disk node for various data, please let > me know. If you need a raw block device you can export qcow2 image as a network block device, something as the following: # modprobe nbd # qemu-nbd --connect=/dev/nbd0 image.qcow2 # fdisk -l /dev/nbd0 I suppose simplest variant. -- Roman