From mboxrd@z Thu Jan 1 00:00:00 1970 From: Charles Duffy Subject: Re: Is this a bug in qemu-img? Date: Mon, 24 Nov 2008 12:07:54 -0600 Message-ID: <492AED7A.8040203@dyfis.net> References: <4929194A.7030704@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:45015 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752473AbYKXSIG (ORCPT ); Mon, 24 Nov 2008 13:08:06 -0500 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1L4fqr-0001my-VU for kvm@vger.kernel.org; Mon, 24 Nov 2008 18:08:01 +0000 Received: from rrcs-71-41-149-67.sw.biz.rr.com ([71.41.149.67]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 24 Nov 2008 18:08:01 +0000 Received: from charles by rrcs-71-41-149-67.sw.biz.rr.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 24 Nov 2008 18:08:01 +0000 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: walt wrote: > Any chance that 'commit' could be added to raw as > well as qcow2? Raw images by their nature can't contain metadata -- they have only the exact contents of the virtual drive, which is what makes them "raw" -- so they by definition can't support copy-on-write (and thus commit) or other functionality requiring metadata.