I use MX-16.1 (with kernel 4.7.0-0.bpo.1-amd64) and got a pop-up message telling that I had 84 updates available.
Therefore I ran this command from a terminal :
Code: Select all
sudo apt-get update
"W: GPG Error : /http://download.opensuse.org Release : The following signatures could not be checked out because the public key is not available : NO_PUBKEY 8873EE7BF70F1BBEA".
How could I resolve this issue, provided that I don'i want to re-install MX-16 from scratch ?