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b77d3d9b81
For block devices used as snapshot source the new snapshot code would
set the reuse flag. This inhibits to take snapshot without specially
preparing the block image before taking the snapshot.
Fortunately this is not a regression as only the new way of specifying
snapshot source is affected.
For the followin snapshot XML:
<domainsnapshot>
<disks>
<disk name='vda' type='block'>
<driver type='qcow2'/>
<source dev="/dev/andariel/testsnap" />
</disk>
</disks>
</domainsnapshot>
You'd get:
error: internal error: unable to execute QEMU command 'transaction': Image is not in qcow2 format
After this patch the snapshot is created successfully.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>