Depuis la mise à niveau de 13.10 vers 14.04, je reçois ces messages ennuyeux chaque fois que j'installe, mets à jour, mets à niveau, etc.:
N: Ignoring file 'webupd8team-java-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'bumblebee-stable-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'steam.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'ubuntu-x-swat-x-updates-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'xorg-edgers-ppa-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'webupd8team-java-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'bumblebee-stable-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'steam.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'ubuntu-x-swat-x-updates-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'xorg-edgers-ppa-raring.list.disable' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
Comment puis-je résoudre le problème sous-jacent signalé dans le message?
edit: Parfois, je reçois des messages supplémentaires ajoutés aux messages ci-dessus:
W: GPG error: http://www.duinsoft.nl debs Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E18CE6625CB26B26
W: Failed to fetch http://ppa.launchpad.net/person/ppa/ubuntu/dists/karmic/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/person/ppa/ubuntu/dists/karmic/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Et parfois, je pourrais en faire d'autres, mais je ne trouve plus les messages précis.