1 | sudo apt update │···Ign:2 http://archive.ubuntu.com/ubuntu xenial-security InRelease │···Ign:1 http://archive.ubuntu.com/ubuntu xenial InRelease │···Holen:4 http://archive.ubuntu.com/ubuntu xenial-security Release [93,5 kB] │···Holen:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [95,7 kB] │···OK:5 http://archive.ubuntu.com/ubuntu xenial Release │···0% [3 InRelease gpgv 95,7 kB]/usr/bin/apt-key: 316: /usr/bin/apt-key: cannot create /dev/null: Permission denied │···gpgv: Signature made Sat Oct 8 11:44:54 2016 CEST using DSA key ID 437D05B5 │···gpgv: Can't check signature: public key not found │···gpgv: Signature made Sat Oct 8 11:44:54 2016 CEST using RSA key ID C0B21F32 │···gpgv: Can't check signature: public key not found │···Fehl:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease │··· Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar ist: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 │···Holen:6 http://archive.ubuntu.com/ubuntu xenial-security Release.gpg [933 B] │···/usr/bin/apt-key: 316: /usr/bin/apt-key: cannot create /dev/null: Permission denied │···Holen:7 http://archive.ubuntu.com/ubuntu xenial Release.gpg [933 B] │···41% [6 Release.gpg gpgv 93,5 kB]gpgv: Signature made Sat Oct 8 11:44:52 2016 CEST using DSA key ID 437D05B5 │···gpgv: Can't check signature: public key not found │···gpgv: Signature made Sat Oct 8 11:44:52 2016 CEST using RSA key ID C0B21F32 │···gpgv: Can't check signature: public key not found │···Ign:6 http://archive.ubuntu.com/ubuntu xenial-security Release.gpg │···41% [7 Release.gpg gpgv 247 kB]/usr/bin/apt-key: 316: /usr/bin/apt-key: cannot create /dev/null: Permission denied │···gpgv: Signature made Fri Apr 22 01:25:09 2016 CEST using DSA key ID 437D05B5 │···gpgv: Can't check signature: public key not found │···gpgv: Signature made Fri Apr 22 01:25:09 2016 CEST using RSA key ID C0B21F32 │···gpgv: Can't check signature: public key not found │···Ign:7 http://archive.ubuntu.com/ubuntu xenial Release.gpg │···Paketlisten werden gelesen... Fertig │···W: GPG-Fehler: http://archive.ubuntu.com/ubuntu xenial-updates InRelease: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht v│···erfügbar ist: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 │···E: The repository 'http://archive.ubuntu.com/ubuntu xenial-updates InRelease' is not signed. │···N: Updating from such a repository can't be done securely, and is therefore disabled by default. │···N: See apt-secure(8) manpage for repository creation and user configuration details. │···W: GPG-Fehler: http://archive.ubuntu.com/ubuntu xenial-security Release: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht ve│···rfügbar ist: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 │···E: The repository 'http://archive.ubuntu.com/ubuntu xenial-security Release' is not signed. │···N: Updating from such a repository can't be done securely, and is therefore disabled by default. │···N: See apt-secure(8) manpage for repository creation and user configuration details. │···W: GPG-Fehler: http://archive.ubuntu.com/ubuntu xenial Release: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar i│···st: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 │···E: The repository 'http://archive.ubuntu.com/ubuntu xenial Release' is not signed. │···N: Updating from such a repository can't be done securely, and is therefore disabled by default. │···N: See apt-secure(8) manpage for repository creation and user configuration details.
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