2013-07-17 09:46:21.613 ERROR nova.compute.manager [req-6a0279ac-6932-4bee-ac5d-c492ee655709 admin admin] [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298] Instance failed to spawn
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298] Traceback (most recent call last):
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/compute/manager.py", line 1261, in _spawn
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     block_device_info)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/driver.py", line 177, in spawn
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     admin_password, network_info, block_device_info)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 504, in spawn
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/utils.py", line 976, in rollback_and_reraise
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     self._rollback()
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     self.gen.next()
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 485, in spawn
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     disk_image_type = determine_disk_image_type_step(undo_mgr)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 153, in inner
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     rv = f(*args, **kwargs)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/vmops.py", line 364, in determine_disk_image_type_step
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     return vm_utils.determine_disk_image_type(image_meta)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]   File "/opt/stack/nova/nova/virt/xenapi/vm_utils.py", line 1445, in determine_disk_image_type
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]     raise exception.InvalidDiskFormat(disk_format=disk_format)
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298] InvalidDiskFormat: Disk format qcow2 is not acceptable
2013-07-17 09:46:21.613 TRACE nova.compute.manager [instance: 4942640a-fbc1-4bc0-90fa-fd8434734298]