搭建devstack环境，OK后登陆页面，出现错误信息如下：
Page not found (404)
Request Method: GET
Request URL: http://192.168.8.127/dashboard/
Using the URLconf defined in openstack_dashboard.urls, Django tried these URL patterns, in this order:
^$ [name='splash']
^auth/
^home/$ [name='user_home']
^i18n/js/(?P<packages>\S+?)/$ [name='jsi18n']
^i18n/setlang/$ [name='set_language']
^i18n/
^qunit/$ [name='qunit_tests']
^project/
^admin/
^settings/
^static\/(?P<path>.*)$
^media\/(?P<path>.*)$
^500/$
The current URL, dashboard/, didn't match any of these.
之前遇到过N多登陆的问题，很快就解决了。信心满满的，结果捣腾了一会儿都不见效。
查看页面/var/log/httpd/horizon_error.log日志，有如下错误
[Fri Jan 24 06:41:37 2014] [error] Not Found: /dashboard/
在FireFox上输入http://192.168.8.127/，回车后自动变为http://192.168.8.127/dashboard/
使用http://192.168.8.127/admin/ 登陆成功。。。