plymouth-theme-lubuntu-logo software package provides plymouth theme for Lubuntu, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install plymouth-theme-lubuntu-logo
plymouth-theme-lubuntu-logo is installed in your system.
Make ensure the plymouth-theme-lubuntu-logo package were installed using the commands given below,
$ sudo dpkg-query -l | grep plymouth-theme-lubuntu-logo *
You will get with plymouth-theme-lubuntu-logo package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | X Window System software |
| Package | plymouth-theme-lubuntu-logo |
| Version | 0.45 |
| Description | plymouth theme for Lubuntu |
| Sub Section | x11 |