Problème de mise à jour Ubuntu | 16.04; ne peut pas terminer la mise à jour
chaque fois que je cours:
Sudo apt-get update
Je reçois ce message ci-dessous:
W: The repository 'cdrom://Ubuntu 16.04 LTS _Xenial Xerus_ - Release AMD64 (20160420.1) xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'ppa.launchpad.net/kirillshkrogalev/ffmpeg-next/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch cdrom://Ubuntu 16.04 LTS _Xenial Xerus_ - Release AMD64 (20160420.1)/dists/xenial/main/binary-AMD64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
E: Failed to fetch cdrom://Ubuntu 16.04 LTS _Xenial Xerus_ - Release AMD64 (20160420.1)/dists/xenial/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
E: Failed to fetch ppa.launchpad.net/kirillshkrogalev/ffmpeg-next/ubuntu/dists/xenial/main/binary-AMD64/Packages 404 Not Found
E: Failed to fetch ppa.launchpad.net/kirillshkrogalev/ffmpeg-next/ubuntu/dists/xenial/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
J'ai utilisé
Sudo nano /etc/apt/sources.list
et commentez ou supprimez les lignes qui incluent cdrom. par exemple:
deb cdrom:[Ubuntu-Server 16.04 LTS Xenial Xerus - Release AMD64 (20160420.3)]/ xenial main restricted>
Je pouvais l'enlever. quand j'ai exécuté Sudo apt-get update, j'ai eu le message d'erreur ci-dessous.
W: The repository 'http://ppa.launchpad.net/ubuntu-on-Rails/ppa/ubuntu xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/ubuntu-on-Rails/ppa/ubuntu/dists/xenial/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
quelqu'un pourrait-il nous éclairer à ce sujet s'il vous plaît? Merci un million d'avance.
Le ppa que vous utilisez n'a pas de paquet disponible pour 16.04, c'est le sens de l'erreur 404.
Désactivez le PPA ou contactez le responsable.