Splash screens are every were created to basically cover up the boot process. If your like me you prefer to see the initiation process so you can watch for errors and . To disable the boot you will need to make the following.changes to /etc/default/grub
Find the line GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash” and change it to GRUB_CMDLINE_LINUX_DEFAULT=”text”
After making the change in GRUB_CMDLINE_LINUX_DEFAULT you will need to rebuild and apply the new changes by running sudo update-grub2.
Now when you boot you will get a grub boot menu after selecting which installation or mode to use. Now you should see the verbose boot process rather the splash screen.