octopi and pamac: DEB_Arch_Extra: key "4B4E7A9523ACD201" is unknown


I am being unable to install packages via either octopi or pamac and they both give me the same answer:

DEB_Arch_Extra: key "4B4E7A9523ACD201" is unknown

How do I fix this?

Thanks in advance :slight_smile:

Megasync issues? See here

This is not a Manjaro or Arch key.

Please check the instructions for whatever third-party repository you have added to your system.


The Google-Fu is strong with this one:



I have already seen this thread but I do not use PGP keys.

Yes you do.
All package managers do.

1 Like

I just opened the /etc/pacman.conf file, and this text is already there.

Yes you do.
All package managers do.

How do I check this?

It's built into the package manager.
But basiaclly, check the SigLevel lines in your /etc/pacman.conf.

There's no need to make the signature checking Optional. The key is in the repo: https://mega.nz/linux/MEGAsync/Arch_Extra/x86_64/DEB_Arch_Extra.key

If you trust it then you can add it to pacman's keyring.

If you need more help with a piece of commercial software please also consider contacting the company who employ paid technical support personnel.

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.

Forum kindly sponsored by