truth_seeker je napisao/la:ovo je konacan odgovor nakon :sudo apt-get update
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F86C6AC1C3FFB4AA
Idemo probati importati key.
gpg --keyserver keyserver.ubuntu.com --recv C3FFB4AA
gpg --export --armor C3FFB4AA | sudo apt-key add -
Prolazi li ovo ?

