As I figured out, only officially supported packages can be added to the CD. So, we need to wait for network-manager-pptp complete MIR procedure: https://bugs.launchpad.net/ubuntu/+source/network-manager-pptp/+bug/524573
As I figured out, only officially supported packages can be added to the CD. manager- pptp complete MIR procedure: https:/ /bugs.launchpad .net/ubuntu/ +source/ network- manager- pptp/+bug/ 524573
So, we need to wait for network-