I have disabled the boot screen/splash screen in my Ubuntu Mini installation it has just the core system with Openbox and Xorg installed, it is upgraded from 18.04 to 20.04. I have been wondering if I could add a custom boot logo, even if just a simple label with text, but preferably an image.
this is how I removed the boot logo in the first place.
openbox
& likely other packages; but the plymouth screen was no doubt added already when you changed your system into a desktop (Xorg/openbox) type system (if not before). Theplymouth
screen is what hides the text boot messages the linux kernel provides by default (ie. it's the Ubuntu/Lubuntu/Xubuntu etc logo page users usually see - it's the equivalent of a logo & dots, or simple graphic only that hides the kernel boot messages). It's shown before the greeter/DM allows you to login. – guiverc Nov 10 '21 at 10:55