Before you try to install or upgrade packages you should update your package lists, the package manager downloads some lists with information about version dependencies and a lot of other stuf.
This is probably the reason for the above 404 error, your package manager is trying to download a file that has been replaced. -- 503 Service Unavailable https://bugs.launchpad.net/bugs/391135 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
