gpg: directory '/root/.gnupg' created gpg: new configuration file '/root/.gnupg/gpg.conf' created gpg: WARNING: options in'/root/.gnupg/gpg.conf' are not yet active during this run gpg: keyring '/root/.gnupg/secring.gpg' created gpg: keyring '/root/.gnupg/pubring.gpg' created gpg: "key" not a key ID: skipping gpg: requesting key 11A06851 from hkp server pgpkeys.mit.edu sudo gpg --armgpg: /root/.gnupg/trustdb.gpg: trustdb created gpg: key 11A06851: public key "Mateusz Łukasik <mati75@linuxmint.pl>" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) $ sudo gpg --armor --export CCD91D6111A06851 | sudo apt-key add -