fix-apt-missing-repository-keys.shsuchat

Good Job!!!👍👍👍😁😁😁

I get the following message:

gpg: keyserver receive failed: Server indicated a failure

gpg: WARNING: nothing exported

it's possible that the key server does not have the key you need, try replacing hkps://keyserver.ubuntu.com:443 with another server that you expect to have the key for the repository you are trying to use

Tried to use ports 80 and 8080 as well as a MIT server to no avail. Also tried many other solutions including adding a nameserver to /etc/resolv.conf, removing files from /var/lib/apt/lists, but was unable to solve the problem with anything that was supposed to help.

Then opened "Software & Updates" and pressed the "Restore defaults" button on the Authenticaion tab. That worked just fine.

Wow... seriously that is amazingly well done! Massive kudos, had been searching like crazy trying to find exactly this!! Woohoo!

Worked like a charm and saved me a ton of research as well.. thanks so much!!

Thanks, I was going crazy almost did a fresh install.

Thanks alot!

I need to chmod 644 to the generated files in /etc/apt/trusted.gpg.d/

I tried this and noticed that the third line only returns one public key ID, instead you can use the command below to get all of them:

sudo apt update 2>&1 | grep -oP -m1 'NO_PUBKEY \K[[:xdigit:]]+' | sort -u "${tmp}"