Jaunty is End of Life, and has been for nearly 6 years, and as such is no longer found on archive mirrors.
https://wiki.ubuntu.com/Releases ** Changed in: update-manager (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619070 Title: W:Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/jaunty/main/binary-i386/Packages.gz 404 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1619070/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
