From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Is this a bug in qemu-img? Date: Sun, 23 Nov 2008 10:50:18 +0200 Message-ID: <4929194A.7030704@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: walt Return-path: Received: from mx2.redhat.com ([66.187.237.31]:56082 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752284AbYKWIuJ (ORCPT ); Sun, 23 Nov 2008 03:50:09 -0500 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: walt wrote: > I do a fresh install of Windows vista on qcow2 which works > perfectly. Thereafter I use that image as a backing file > to make all kinds of updates to Vista, and all that works > perfectly too. > > Then I use 'qemu-img commit' to commit all the changes I've > made to Vista. The problem is that the updated base image > doesn't work quite right if I try to run Vista from it -- > there are minor malfunctions which indicate that the commit > was incomplete or maybe just wrong. What's your sequence of commands? Are you using -snapshot? -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.