apt pinning problem, updating packages
Contributed by: pablo | Views::2,207
I've been happily using Debian for a few months now (based on Knoppix, 3.6 recently, hard disk installation), athough I've used apt in a very basic manner, mostly from kpackage in kde. I need help as I can't get my system to access some available packages in "unstable". I checked that the packages in question are available from my mirror:
http://debian.yorku.ca/debian/pool/main/r/r-base/
Particularly, I'm trying to upgrade from version 1.9.1 to version 2.0 of those packages. My sources.list file includes lines for "stable", "unstable", "testing" and "experimental" from that same mirror (debian.yorku.ca). I have been advised that the problem may be related to the system pinning to "testing", so that upgrades from "unstable" are not available. I checked this, but I have no /etc/apt/preferences file in my system, so I have no idea how it can be pinning to any release. However, my /etc/apt/apt.conf contains:
APT::Default-Release "testing";
APT::Cache-Limit 10000000;
Apt::Get::Purge;
I'd greatly appreciate any advise, as there's no one around me with any knowledge of Linux systems.
Cheers