linux-headers-virtual-lts-xeni software package provides Transitional package., 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 linux-headers-virtual-lts-xeni
linux-headers-virtual-lts-xeni is installed in your system.
Make ensure the linux-headers-virtual-lts-xeni package were installed using the commands given below,
$ sudo dpkg-query -l | grep linux-headers-virtual-lts-xeni*
You will get with linux-headers-virtual-lts-xeni package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Kernels |
| Package | linux-headers-virtual-lts-xeni |
| Version | 4.4.0.47.34 |
| Description | Transitional package. |
| Sub Section | Kernels |