Here is a guide that shows how to change your plymouth theme on Ubuntu 11.10. I will show you how to change it using terminal command lines. I tried changing the plymouth theme using the plymouth manager and the zorin splash screen manager but for some reason they don’t work.
You can install new plymouth themes using the terminal window, to get a list of available themes copy+paste the following line:
apt-cache search plymouth-theme
To install a plymouth theme you want use:
sudo apt-get install plymouth-theme
Replace plymouth-theme with the plymouth theme you want to install.
To enable the newly installed plymouth theme copy+paste the following line:
sudo update-alternatives --config default.plymouth
A list of all the installed plymouth themes will be shown, in front of the plymouth theme there is a number. All you have to do is enter the number in front of the plymouth theme you want to use and press enter to enable it.
To apply the changes copy+paste the following line:
sudo update-initramfs -u
When done… close the terminal window… restart your computer… enjoy?