I am working, which has around 40 employees and almost everyone is using ubuntu desktop 14.04. I have created a local ubuntu repository(ubuntu 14.04) using apt-cacher. I am using it for updating systems and installing new softwares in all the ubuntu systems.
I have updated few of the systems from 14.04 to 16.04 using it. Now when I am trying to install new packages in the updated systems(16.04), it is not happening. I am getting the following error:
E: Some index files failed to download. They have been ignored, or old ones used instead.
Please make a note that 192.168.1.2 is the local IP of my apt-cacher server.
As all of my systems are not upgraded to 16.04, I want to keep my apt-cache server for 14.04 as well as 16.04. How can I achieve this? Further can I make it the repository of packages which are installed using ppa?