MySQL 无法连接到系统总线：无法连接到套接字 /var/run/dbus/system_bus_socket
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unable to connect to system bus: failed to connect to socket /var/run/dbus/system_bus_socket
提问by mt0s
I started to use a new VPS system with ubuntu 12.04
我开始在ubuntu 12.04上使用新的VPS系统
After following the commands hereI installed php, mysql, apache2
按照这里的命令之后，我安装了 php、mysql、apache2
PHP and apache are working great but when I run :
PHP 和 apache 运行良好，但是当我运行时：
service mysql start
I get : unable to connect to system bus: failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory.
我得到： unable to connect to system bus: failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory.
I googled but didn't find enough to help me.
我用谷歌搜索但没有找到足够的帮助我。
There is no /var/run/dbus/ directory and I don't know what I need to create one or even if this is the problem for mysql.
没有 /var/run/dbus/ 目录，我不知道我需要创建什么目录，或者即使这是 mysql 的问题。
回答by JW.
I had this error message and discovered that it was a sign that initctl(the 'init daemon control tool') was being called (indirectly) without the necessary privileges.
我收到此错误消息并发现它表明initctl（“初始化守护进程控制工具”）在没有必要权限的情况下被（间接）调用。
In other words:
换句话说：
It failed because:
它失败了，因为：
- I was not logged in as the
rootuser, - nor was I prefixing my 'daemon control' command with
sudo.
- 我没有以
root用户身份登录， - 我也没有在我的“守护进程控制”命令前加上
sudo.
Either one would have solved the issue.
任何一个都可以解决这个问题。
It's a bit confusing because you would have thought a 'privilage issue' would trigger an error message that talks about 'privilage thangs'. But, no. It talks about being "unable to connect to system bus".
这有点令人困惑，因为您会认为“特权问题”会触发一条关于“特权胜过”的错误消息。但不是。它谈到“无法连接到系统总线”。
So, may I suggest:
所以，我可以建议：
Try temporarily elevating your privileges by prefixing your command with sudo.
尝试通过在命令前加上前缀来临时提升您的权限sudo。
Assuming that the hash symbol (#) indicates your command prompt, run the following command instead:
假设井号 ( #) 表示您的命令提示符，请改为运行以下命令：
# sudo service mysql start
Then, type in your user password as prompted.
然后，根据提示输入您的用户密码。
OR
或者
If you have set a password for the rootuser on your installation of Ubuntu, you could elevate to that Super User by typing:
如果您root在安装 Ubuntu 时为用户设置了密码，则可以通过键入以下内容提升为该超级用户：
# su
Then, type in the rootpassword as prompted.
然后root根据提示输入密码。
Then, in this context, your original command should, now, work:
然后，在这种情况下，您的原始命令现在应该可以工作：
# service mysql start
See it's man page DESCRIPTIONfor more information about initctl's connection to service start, stop, restart, reloadand statuscommands.
看到它的人的页面描述有关详细信息initctl的服务连接start，stop，restart，reload和status命令。
