sudo vi /boot/config.txt disable_splash=1 ref: https://scribles.net/customizing-boot-up-screen-on-raspberry-pi/ sudo vi /boot/cmdline.txt 1. loglevel=0 logo.nologo quiet 2. changing console=tty1 to console=tty3 Remove other things add below at the end of the line splash quiet plymouth.ignore-serial-consoles logo.nologo vt.global_cursor_default=0 https://scribles.net/silent-boot-up-on-raspbian-stretch/ Here are brief explanations. ‘splash’ : enables splash image ‘quiet’ : disable boot message texts ‘plymouth.ignore-serial-consoles’ : not sure about this but seems it’s required when use Plymouth. ‘logo.nologo’ : removes Raspberry Pi logo in top left corner. ‘vt.global_cursor_default=0’ : removes blinking cursor. Note : The first three should be there by default, but make sure if those exist.
https://raspberrypi.stackexchange.com/questions/59310/remove-boot-messages-all-text-in-jessie https://www.tanzolab.it/CM3-Panel-boot-process