Ocata Instance can not startup with cirros image

I installed the openstack components based on Ocata version.
After configuration, the instance can not boot up with image cirros.
From the console, I can get below lines:

**SeaBIOS （version 1.9.1-5.el7_3.2）
Machine UUID 669dbc1f-55ad-47f6-bb6b-83954ce0cc87
iPXE (http://ipxe.org) 00:03.0 C980 PCI2.10 PnP PMM (Stopped at here)****

(openstack) compute service list
+----+------------------+-----------------------+----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+------------------+-----------------------+----------+---------+-------+----------------------------+
| 1 | nova-scheduler | controller | internal | enabled | up | 2017-03-30T03:51:26.000000 |
| 2 | nova-consoleauth | controller | internal | enabled | up | 2017-03-30T03:51:35.000000 |
| 3 | nova-conductor | controller | internal | enabled | up | 2017-03-30T03:51:35.000000 |
| 6 | nova-compute | localhost.localdomain | nova | enabled | up | 2017-03-30T03:51:26.000000 |
| 7 | nova-compute | alex.study | nova | enabled | up | 2017-03-30T03:51:29.000000 |
+----+------------------+-----------------------+----------+---------+-------+----------------------------+
(openstack) network list
+--------------------------------------+----------+--------------------------------------+
| ID | Name | Subnets |
+--------------------------------------+----------+--------------------------------------+
| 695ee599-e446-4bc8-ba81-ff38ed55877a | provider | a168be5f-9e48-4f3b-89e4-ef332780db49 |
+--------------------------------------+----------+--------------------------------------+
(openstack) server list
+--------------------------------------+-------+--------+----------------------+-------------+
| ID | Name | Status | Networks | Image Name |
+--------------------------------------+-------+--------+----------------------+-------------+
| 669dbc1f-55ad-47f6-bb6b-83954ce0cc87 | TEST2 | ACTIVE | provider=10.7.117.78 | cirros_test |
+--------------------------------------+-------+--------+----------------------+-------------+
(openstack) service list
+----------------------------------+-----------+-----------+
| ID | Name | Type |
+----------------------------------+-----------+-----------+
| 1b16dbf2522d483da5bcffba98ce66d3 | keystone | identity |
| 4d2abf4fecfe4fb8bc1f77468b6f5577 | placement | placement |
| 65451d1f28214be38501b012acc63b13 | glance | image |
| 81266ae71d7c485bae32f49e80223a31 | placement | placement |
| cdf2bf28a7b444d29cca22c3473cebba | nova | compute |
| e7e511a171bc4dc2a7177ee213c2a1ff | neutron | network |
+----------------------------------+-----------+-----------+
(openstack)

Could you please help me on this, what I need to check and fix this issue?

Thanks