$ sudo apt-get update
$ sudo apt-get install kpartx-udeb 

kpartx-udeb is installed in your system.

Make ensure the kpartx-udeb package were installed using the commands given below,

$ sudo dpkg-query -l | grep kpartx-udeb *

You will get with kpartx-udeb package name, version, architecture and description in a table

kpartx-udeb package basic information: