I am trying to hide boot up messages on my raspberry PI. I upgraded it from the stock raspbian image to buster via this guide: https://gist.github.com/nickfox-taterli/fcddd0ac724ec066b51f8e777800fea2. Unfortunately since then I cannot figure out how to hide boot messages. I can put it into a different tty using /boot/cmdline.txt but I cannot hide it like I could in raspbian stretch. Any help would be greatly appreciated!
Please try this
Remove rainbow screen
Overclock the SD Card from 50 to 100MHz
This can only be done with at least a UHS Class 1 card
Set the bootloader delay to 0 seconds. The default is 1s if not specified.
Remove icon and cursor
splash quiet plymouth.ignore-serial-consoles logo.nologo vt.global_cursor_default=0