我的 Centos 6.6 服务器宕机了，Phusion Passanger 拒绝启动并出现以下错误：
stdin: is not a tty
/etc/init/delayed_job.conf: line 7: description: command not found
start: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
stop: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
以下是delayed_job.conf的内容：
description "Start up the delayed_job service"
start on runlevel [2345]
stop on runlevel [06]
script
exec 2>&1
exec su - training -c 'cd /home/training/nyim/current; RAILS_ENV=production exec bundle exec ruby ./script/delayed_job run' >> /home/training/nyim/curr$
end script
文件夹 /var/run/dbus/ 缺少 system_bus_socket 和 pid 文件。
任何线索都会很有用，我很困惑为什么会发生这种情况。
我可以启动“service messagebus start”服务，但这没有帮助。