linux服务器init 5启动图形界面，报错Retrigger failed udev events

今天因工作需要开启linux系统的桌面环境，使用startx未成功，报如下错误：

[root@ /]# startx
xauth:  creating new authority file /root/.serverauth.
 
xinit:  No such file or directory (errno ):  no server "/usr/bin/X" in PATH
 
Use the -- option, or make sure that /usr/bin is in your path and
that "/usr/bin/X" is a program or a link to the right type of server
for your display.  Possible server names include:
 
    Xorg        Common X server for most displays
    Xvfb        Virtual frame buffer
    Xfake       kdrive-based virtual frame buffer
    Xnest       X server nested in a window on another X server
    Xephyr      kdrive-based nested X server
 
giving up.
xinit:  No such file or directory (errno ):  unable to connect to X server
xinit:  No such process (errno ):  Server error.

再继续使用init 5命令进行切换时，同样报错Retrigger failed udev events，如下图所示：

静下心来仔细一想、init 5执行的条件是得linux操作系统得有图形环境，因此很可能是未安装桌面环境

解决方法，安装Gnome桌面环境即可：

[root@ ~]yum groupinstall "Desktop"  -y
[root@ ~]yum groupinstall "X Window System"  -y

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