Today I read Remove Boot Text On The Raspberry Pi For Noobs:
You will see a single line with all the boot options. Scroll along and change the following making sure not to add any linebreaks:
- Replace console=tty1 to console=tty3 to redirect boot messages to the third console.
- Add loglevel=3 to disable non-critical kernel log messages.
- Add logo.nologo to the end of the line to remove the Raspberry PI logos from displaying
- add disable_splash=1 at the end of the file.