An error may occur when updating the apt
deb package manager cache on Linux (Ubuntu or Debian distros):
$ apt-get update
W: There is no public key available for the following key IDs: 467B942D3A79BD29
W: GPG error: https://repo.mysql.com/apt/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
Continue reading “Fix: apt-get – there is no public key available”