No pubkey found...

[newyorkpaulie]

I just ran apt update in terminal and got the usual listing of packages, but at the end I got the following:
W: GPG error: The Opera .deb Repository stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F9A2F76A9D1A0061

Anyone have a fix for this?
I was once able to use the following, but I'm now using Mint-8, not the OS I was using before.

This is what once worked for me:

type: sudo apt-get update

if there is a pubkey error replace the hex# in the following lines...

sudo gpg --keyserver keyserver.ubuntu.com --recv F9A2F76A9D1A0061

sudo gpg --export --armor F9A2F76A9D1A0061 | sudo apt-key add -

then run sudo apt-get update and it should work.

[TaZMAniac]

Canonical repository for Opera no longer works. See this page;
https://help.ubuntu.com/community/OperaBrowser

If you follow the links to Opera.deb you can find the command to add in the key for Opera directly from Opera.
The Opera .deb Repository

Just run this command to import the key from Opera;

wget -O - http://deb.opera.com/archive.key | sudo apt-key add -

That should do the trick.

[sgosnell]

You don't need the key in order to install packages from the repository, that's just a gpg warning, and it won't prevent installation or updating. The key is only for reassurance that the repository is what it claims to be, and if you already know that you don't have to worry too much. But if you want the key, it's certainly no problem to get it.