warning: the following packages cannot be authenticated!

Question

I am trying a local installation of the juju charms.

1. Deply charm on machine1

2. copy deb files from /var/cache/apt/archive to /root/test on machine2

3. Modify the /etc/apt/sources.list to /root/test

4. apt-get update

5. When I try to deploy the charm on the machine2, I get the following error:

   warning: the following packages cannot be authenticated!
   

I did the search on error and tried few tricks like apt-key update but it did not work. How to resolve this?

Answer 1

Try to add --force-yes option when you do the apt-get install. It worked for me.