Public bug reported: Regardless the used server (main, Italian, etc.) and update manager (terminal, Synaptic, etc.), the apt-get update process become buggy: during this process, some pubkey is lost, causing "Not authenticated" alerts when installing packages from the corrupted sources.
Below the used command lines to add certain repositories which cause the problem. ---------------------------------- sudo su echo deb http://archive.getdeb.net/ubuntu utopic-getdeb apps >> /etc/apt/sources.list && echo deb http://archive.getdeb.net/ubuntu utopic-getdeb games >> /etc/apt/sources.list && wget -q -O- http://archive.getdeb.net/getdeb-archive.key | apt-key add - && echo deb http://download.virtualbox.org/virtualbox/debian utopic contrib >> /etc/apt/sources.list && wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | apt-key add - sudo add-apt-repository ppa:mamarley/nvidia -y && sudo add-apt- repository ppa:webupd8team/y-ppa-manager -y && sudo add-apt-repository ppa:danielrichter2007/grub-customizer -y && sudo add-apt-repository ppa:i-nex-development-team/stable -y && sudo add-apt-repository ppa:iconnor/zoneminder -y && sudo add-apt-repository ppa:remmina-ppa- team/remmina-master -y && sudo add-apt-repository ppa:thefanclub/grive- tools -y && sudo add-apt-repository ppa:pidgin-developers/ppa -y && sudo add-apt-repository ppa:whatsapp-purple/ppa -y && sudo add-apt-repository ppa:git-core/ppa -y && sudo add-apt-repository ppa:webupd8team/nemo -y && sudo apt-add-repository ppa:teejee2008/ppa -y && sudo add-apt- repository ppa:thad-fisch/freshplayerplugin -y && sudo add-apt- repository ppa:ondrej/php5 -y && sudo add-apt-repository ppa:ubuntu- wine/ppa -y && sudo add-apt-repository ppa:libreoffice/ppa -y && sudo apt-add-repository ppa:jtaylor/keepass -y && sudo add-apt-repository ppa:bitcoin/bitcoin -y && sudo add-apt-repository ppa:plushuang-tw/uget- stable -y && sudo add-apt-repository ppa:djcj/mediainfo -y && sudo add- apt-repository ppa:clipgrab-team/ppa -y && sudo add-apt-repository ppa:yorba/ppa -y && sudo add-apt-repository ppa:stebbins/handbrake- releases -y && sudo add-apt-repository ppa:otto-kesselgulasch/gimp -y && sudo add-apt-repository ppa:otto-kesselgulasch/lightzone -y && sudo add- apt-repository ppa:gstreamer-developers/ppa -y && sudo add-apt- repository ppa:kxstudio-debian/kxstudio -y && sudo add-apt-repository ppa:freecad-maintainers/freecad-stable -y && sudo add-apt-repository ppa :freecad-maintainers/oce-release -y && sudo add-apt-repository ppa:pasgui/ppa -y && sudo add-apt-repository ppa:wxformbuilder/wxwidgets -y && sudo add-apt-repository ppa:wxformbuilder/release -y && sudo add- apt-repository ppa:glennric/dolphin-emu -y && sudo add-apt-repository ppa:wfg/0ad -y && sudo apt-add-repository ppa:wfg/0ad.dev -y && sudo add-apt-repository ppa:spring/ppa -y && sudo add-apt-repository ppa:s44/stable -y && sudo add-apt-repository ppa:christoph-egger /unknown-horizons -y && sudo add-apt-repository ppa:speed-dreams/ppa -y && sudo add-apt-repository ppa:saiarcot895/flightgear -y ** Affects: ubuntu Importance: Undecided Assignee: Simone98RC (simone98rc) Status: New ** Tags: apt update upgrade ** Changed in: ubuntu Assignee: (unassigned) => Simone98RC (simone98rc) ** Tags added: apt-get ** Tags removed: apt-get ** Tags added: apt ** Tags added: update upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1432840 Title: The update process become buggy with many enabled repositories To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1432840/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs