$ sudo apt-get update
$ sudo apt-get install oldsys-preseed 

oldsys-preseed is installed in your system.

Make ensure the oldsys-preseed package were installed using the commands given below,

$ sudo dpkg-query -l | grep oldsys-preseed *

You will get with oldsys-preseed package name, version, architecture and description in a table

oldsys-preseed package basic information: