ritorna aggiornamento apt-get :
W: GPG error: http://pl.archive.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://pl.archive.ubuntu.com trusty-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://extras.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
W: GPG error: http://deb.torproject.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EE8CBC9E886DDD89
W: GPG error: http://security.ubuntu.com trusty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
Ho provato molte soluzioni consigliate da vecchie domande, ma nulla sembra aiutare.
sudo apt-get clean
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 (con tutte le chiavi mancanti)
Ho installato lauchpad-getkeys che dovrebbe ripristinare automaticamente le chiavi
Qualche idea?
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 40976EAF437D05B5
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.ux3Y2CVCoP --no-auto-check-trustdb --trust-model always (elenco ridotto dei repository) gpg: keyblock resource /etc/apt/trusted.gpg.d/xorg-edgers-ppa.gpg: resource limit gpg: keyblock resource /etc/apt/trusted.gpg.d/yktooo-ppa.gpg: resource limit gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed gpg: Total number processed: 1 gpg: unchanged: 1
40976EAF437D05B5è estremamente testarda e difficile da risolvere, quindi Q 13065 copre solo i casi che l'OP ha tentato comunque mille volte. È come se mi avessi dato un cacciavite Pozidriv quando ne ho bisogno di uno Torx. ;)