apt-key add key_file <div>2007/8/29, Jimmy Wu <<a href="mailto:jimmywu013+ubuntu-user-list@gmail.com">jimmywu013+ubuntu-user-list@gmail.com</a>>:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I recently added the debian volatile to my synaptic sources list, with the following line:deb <a href="http://volatile.debian.org/debian-volatile" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> http://volatile.debian.org/debian-volatile</a> etch/volatile main contrib non-free Unfortunately, synaptic complains that packages from this source are not authenticated. What can I do to fix this? On this site: <a href="http://www.debian.org/volatile/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> http://www.debian.org/volatile/</a> there is a section near the bottom called archive signing key. Does that have anything to do with the problem? I've downloaded the files, but I don't know what to do with them. Thanks in advance, Jimmy -- ubuntu-users mailing list <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a onclick="return top.js.OpenExtLink(window,event,this)" href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div>