libdevmapper1.02.1 software package provides Linux Kernel Device Mapper userspace library, 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 libdevmapper1.02.1
libdevmapper1.02.1 is installed in your system.
Make ensure the libdevmapper1.02.1 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libdevmapper1.02.1 *
You will get with libdevmapper1.02.1 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libdevmapper1.02.1 |
| Version | 2:1.02.77-6ubuntu2 |
| Description | Linux Kernel Device Mapper userspace library |
| Sub Section | libs |