Centos startup does not show animation

Now centos starts with a progress bar by default. If you don't want to do this, but want to echo the startup information on the screen, the modification method is as follows

 

The relevant configuration is in the /boot/grub2/grub.cfg file, but when you enter this file, you can see that the beginning is written like this

#
# NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

File Description Do not personalize this file, which is generated by the command grub2-config from the template /etc/grub.d and the configuration file /etc/default/grub. So you need to modify the configuration file

 

Go to /etc/default/grub and find the GRUB_CMDLINE_LINUX line, change "rhgb quiet" to "quiet" (remove rhgb)

 

then execute the command

grub2-mkconfg --output=/boot/grub2/grub.cfg

 Restart to see the effect