That's solved by commenting the two last lines of my /etc/apt/sources.list file.
# deb http://archive.ubuntu.com/ubuntu/ gutsy non-free # deb-src http://archive.ubuntu.com/ubuntu/ gutsy non-free #Added by software-properties -- Failed to fetch https://bugs.launchpad.net/bugs/217417 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
