How to change boot logo in linux mint
just type: sudo update-initramfs -u
.
Here are the steps you will need to follow : Goto following location
/usr/share/plymouth/themes/mint-logo
Change the mint-logo.png to the choice of your image. You will need the root permission to change it so open it as root. Then checkout this file : mint-logo.script This file contains the code which shows how the logo and background should look, so change accordingly.
Then type following command :
sudo update-initramfs -u
Now reboot to look at the changes in your bootsplash screen.