With Raspbian the default configuration is to output the boot messages on the screen, or tty1 as it is also called. This is helpful when debugging but can be pretty, quite frankly, ugly. For a cleaner and more silent boot we can edit the boot command line to redirect boot messages to another screen.

pi@raspberrypi ~ $ sudo nano /boot/cmdline.txt 

Now, we only want to edit the console=tty1 part. We’ll change it to tty2. We also need to add a couple of more parameters to prevent messages from filling the screen.

loglevel=3 logo.nologo vt.global_cursor_default=0

My configuration looks like this after:

dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty2 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait loglevel=3 logo.nologo vt.global_cursor_default=0

Save (ctrl +x and y) and reboot. Now you can just use ALT+F2 to switch to tty2 which the boot messages are written to. Use ALT+F1 to switch back.