by default, the boot logo for Ubuntu 18.04 uses /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.png from the script /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.script
to change the boot logo by understanding above content of the script..
we need to replace ubuntu-logo16.png & ubuntu-logo.png files with our custome ones with same names..
you can easily do this with command line..
Example Command Line when my Custom Image is in ~/Downloads with boot.png name
cd /usr/share/plymouth/themes/ubuntu-logo
sudo mv ubuntu-logo.png ubuntu-logo.png.bak
sudo mv ubuntu-logo16.png ubuntu-logo16.png.bak
cd ~/Downloads
sudo cp boot.png /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.png
sudo cp boot.png /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo16.png
Recommendations for custom boot logo image:
image format: .png
image size: around 217px in width
by default, the boot logo for Ubuntu 18.04 uses
/usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.png
from the script/usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.script
some of the content of this script is
to change the boot logo by understanding above content of the script.. we need to replace
ubuntu-logo16.png
&ubuntu-logo.png
files with our custome ones with same names..you can easily do this with command line..
Example Command Line when my Custom Image is in
~/Downloads
withboot.png
nameRecommendations for custom boot logo image:
image format: .png
image size: around 217px in width