如何解决centos虚拟机无法启动？
用VMware虚拟机创建的一个centos桌面版系统。系统启动时出现问题，在启动certmonger之后，界面卡住，无法进入图形界面，如图：
解决方法：
首先，Ctrl+Alt+F2进入命令行界面，用root用户登录，查看/etc/X11/xorg.conf文件是否存在，如果存在，则执行命令：
mv /etc/X11/xorg.conf /etc/X11/old_xorg.conf
重启系统，看是否正常。
然后Ctrl+Alt+F2进入命令行界面，用root用户登录，修改文件/etc/inittab
vim/etc/inittab
# inittab is only used by upstart for the default runlevel. # ADDING OTHER CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM. # System initialization is started by /etc/init/rcS.conf # Individual runlevels are started by /etc/init/rc.conf # Ctrl-Alt-Delete is handled by /etc/init/control-alt-delete.conf # Terminal gettys are handled by /etc/init/tty.conf and /etc/init/serial.conf, # with configuration in /etc/sysconfig/init. # For information on how to write upstart event handlers, or how # upstart works, see init(5), init(8), and initctl(8). # Default runlevel. The runlevels used are: # 0 - halt (Do NOT set initdefault to this) # 1 - Single user mode # 2 - Multiuser, without NFS (The same as 3, if you do not have networking) # 3 - Full multiuser mode # 4 - unused # 5 - X11 # 6 - reboot (Do NOT set initdefault to this) # id:5:initdefault:
将最后一行id:5:initdefault:修改为id:3:initdefault:则开机默认进入命令行界面。
重启进入命令行之后，执行startx，则可进系统图形界面了！
相关参考：centOS教程
