How to solve the problem that the centos virtual machine cannot be started

How to solve the problem that the centos virtual machine cannot be started?

A centos desktop system created with VMware virtual machine. A problem occurred when the system started. After starting certmonger, the interface got stuck and the graphical interface could not be entered, as shown in the figure:

Solution:

First, Ctrl Alt F2 to enter the command line interface, log in as the root user, check whether the /etc/X11/xorg.conf file exists, if it exists, execute the command:

mv /etc/X11/xorg.conf /etc/X11/old_xorg.conf

Restart the system and see if normal.

Then Ctrl Alt F2 to enter the command line interface, log in as the root user, and modify the file /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:

Change the last line id:5:initdefault: to id:3:initdefault: to enter the command line interface by default when booting.

After restarting and entering the command line, execute startx to enter the system graphical interface!

Related reference: centOS tutorial

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