Disabling Linux Boot Splash Window

Most Linux systems use Plymouthd to display the Splash scren during boot. If you are running the computer as a server and do not log in from the console, the Plymouthd can sometimes bring more trouble than it is worth. For one, to display the Splash window, Plymouthd needs to interact with the driver of the graphics adapter in the system, and if there is an issue here, the system will not boot successfully. Since the server's console may not be conveniently accessed, this can be a real inconvenience.

To remove it on Linux systems like Fedora and Redhat, we can do the following,

sudo grubby --update-kernel=ALL --remove-args="quiet"
sudo grubby --update-kernel=ALL --remove-args="rhgb"
# directly edit /etc/default/grub and add "rd.plymouth=0 plymouth.enable=0" to GRUB_CMDLINE_LINUX
vi /etc/default/grub
sudo grub2-mkconfig -o /etc/grub2.cfg
sudo dnf remove plymouth