$ sudo apt-get update
$ sudo apt-get install libibmad5 

libibmad5 is installed in your system.

Make ensure the libibmad5 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libibmad5 *

You will get with libibmad5 package name, version, architecture and description in a table

libibmad5 package basic information: