Failed to fetch http://medibuntu.sos-sts.com/repo/dists/feisty/free/binary-i386/Packages.gz 302 Found
Failed to fetch http://medibuntu.sos-sts.com/repo/dists/feisty/non-free/binary-i386/Packages.gz 302 Found
Failed to fetch http://medibuntu.sos-sts.com/repo/dists/feisty/free/source/Sources.gz 302 Found
Failed to fetch http://medibuntu.sos-sts.com/repo/dists/feisty/non-free/source/Sources.gz 302 Found
Reading package lists... Done
W: GPG error: http://ca.archive.ubuntu.com feisty-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: GPG error: http://ca.archive.ubuntu.com feisty-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old ones used instead.