$ sudo apt-get update
$ sudo apt-get install ir.lv2 

ir.lv2 is installed in your system.

Make ensure the ir.lv2 package were installed using the commands given below,

$ sudo dpkg-query -l | grep ir.lv2 *

You will get with ir.lv2 package name, version, architecture and description in a table

ir.lv2 package basic information: