Openstack 启动instance 'hvm'错误：
2012-05-25 10:07:12 TRACE nova.rpc.amqp Traceback (most recent call last):
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 252, in _process_data
2012-05-25 10:07:12 TRACE nova.rpc.amqp rval = node_func(context=ctxt, **node_args)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
2012-05-25 10:07:12 TRACE nova.rpc.amqp return f(*args, **kw)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 177, in decorated_function
2012-05-25 10:07:12 TRACE nova.rpc.amqp sys.exc_info())
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2012-05-25 10:07:12 TRACE nova.rpc.amqp self.gen.next()
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 171, in decorated_function
2012-05-25 10:07:12 TRACE nova.rpc.amqp return function(self, context, instance_uuid, *args, **kwargs)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 651, in run_instance
2012-05-25 10:07:12 TRACE nova.rpc.amqp do_run_instance()
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/utils.py", line 945, in inner
/hvm
2012-05-25 10:07:12 TRACE nova.rpc.amqp self._run_instance(context, instance_uuid, **kwargs)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 451, in _run_instance
2012-05-25 10:07:12 TRACE nova.rpc.amqp self._set_instance_error_state(context, instance_uuid)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2012-05-25 10:07:12 TRACE nova.rpc.amqp self.gen.next()
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 432, in _run_instance
2012-05-25 10:07:12 TRACE nova.rpc.amqp self._deallocate_network(context, instance)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2012-05-25 10:07:12 TRACE nova.rpc.amqp self.gen.next()
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 429, in _run_instance
2012-05-25 10:07:12 TRACE nova.rpc.amqp injected_files, admin_password)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 592, in _spawn
2012-05-25 10:07:12 TRACE nova.rpc.amqp self._legacy_nw_info(network_info), block_device_info)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
2012-05-25 10:07:12 TRACE nova.rpc.amqp return f(*args, **kw)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 922, in spawn
2012-05-25 10:07:12 TRACE nova.rpc.amqp self._create_new_domain(xml)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 1573, in _create_new_domain
2012-05-25 10:07:12 TRACE nova.rpc.amqp domain = self._conn.defineXML(xml)
2012-05-25 10:07:12 TRACE nova.rpc.amqp File "/usr/lib/python2.7/dist-packages/libvirt.py", line 2199, in defineXML
2012-05-25 10:07:12 TRACE nova.rpc.amqp if ret is None:raise libvirtError('virDomainDefineXML() failed', conn=self)
2012-05-25 10:07:12 TRACE nova.rpc.amqp libvirtError: internal error no supported architecture for os type 'hvm'
2012-05-25 10:07:12 TRACE nova.rpc.amqp libvirtError: internal error no supported architecture for os type 'hvm'
解决办法：
bios 设置 ivt enable
配置文件nova.conf，libvirt设置为 qemu
#--libvirt_type=kvm
--libvirt_type=qemu
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