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Re: [Qemu-devel] [Bug 1192780] [NEW] qemu-kvm with snapshot option alway

From: Eric Blake
Subject: Re: [Qemu-devel] [Bug 1192780] [NEW] qemu-kvm with snapshot option always fails with Permission denied Could not open disk image
Date: Thu, 25 Jul 2013 09:46:03 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7

On 06/19/2013 08:42 PM, Sam Stoelinga wrote:
> Public bug reported:
> I'm trying to use the option: -snapshot       write to temporary files
> instead of disk image files

> libvirt.xml that I'm using:
> <domain type="qemu" xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>

> <qemu:commandline>
>    <qemu:arg value='-snapshot'/>
> </qemu:commandline>
> </domain>

This is unsupported usage of libvirt, and not a qemu bug.  You'd need to
take this up with the libvirt list to get libvirt to properly support
temporary disk images without needing <qemu:commandline>, and so that
libvirt is properly setting SELinux permissions on the temporary file.

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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