URL: https://linuxfr.org/forums/linux-debutant/posts/probleme-de-telechargement-edc01f3b-fd78-4f2e-bfa6-684f993fff42 Title: Probléme de téléchargement Authors: whitefuneral974 Date: 2016年04月07日T18:05:55+02:00 License: CC By-SA Tags: ubuntu Score: 0 Bonjour c'est pour demander si vous pouvez m'aider car j'ai un problème de téléchargement et d'installation sur mon appareille lorsque je télécharge une application ou faire une mise a jour il y a une page ou ont peut y lire le messagge suivant qui est: "Cette action nécessitera l'installation de paquets depuis des dépôts non authentifiés." et dans les détails il y a de marquer : "bbswitch-dkms bumblebee bumblebee-nvidia libsctp1 lksctp-tools virtualgl virtualgl-libs" ou "fop janino java-wrappers java3ds-fileloader libapache-pom-java libavalon-framework-java libbsf-java libcommons-io-java libcommons-logging-java libcommons-parent-java libfop-java libitext-java libjava3d-java libjava3d-jni libjaxp1.3-java libjline-java libsaxon-java libsunflow-java libvecmath-java libxmlgraphics-commons-java rhino sweethome3d" et il y a un probléme lorsque je le télécharge qui dit "Vérifiez votre connexion à Internet" Et en détails "W:GPG error: http://archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key , W:GPG error: http://archive.ubuntu.com precise-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key , W:GPG error: http://ppa.launchpad.net precise Release: The following signatures were invalid: BADSIG B22A95F88110A93A Launchpad PPA for Bumlebee Project, W:GPG error: http://ppa.launchpad.net precise Release: The following signatures were invalid: BADSIG FE42EEC4F62476D8 Launchpad PPA for David Henningsson, W:GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4DF9B28CA252A784, W:Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release Unable to find expected entry 'main/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file) , W:Failed to fetch cdrom://Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release amd64 (20140204)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release amd64 (20140204)/dists/precise/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch http://ppa.launchpad.net//ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch http://ppa.launchpad.net//ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found , W:Failed to fetch http://ppa.launchpad.net//ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/wine1.6/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/wine1.6/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/wine1.6/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , E:Some index files failed to download. They have been ignored, or old ones used instead." alors que ma connection internet et stable alors je voudrais avoir des avis sur mon probléme merci de votre compréhension