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Re: W: An error occurred during the signature verification
Posted by: Alan Shank
Date: May 24, 2022 04:07PM

I am having a similar problem updating. I try:
alan ~ $sudo apt upgrade
[sudo] password for alan:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
mysql-client

My mysql is working, both server and client.I can do queries, etc.

Next I tried:

alan ~ $sudo apt update
Get:1 http://repo.mysql.com/apt/ubuntu focal InRelease [12.9 kB]
Err:1 http://repo.mysql.com/apt/ubuntu focal InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
Hit:2 http://us.archive.ubuntu.com/ubuntu focal InRelease
Get:3 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Hit:4 http://archive.canonical.com/ubuntu focal InRelease
Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:6 http://dell.archive.canonical.com focal InRelease
Reading package lists... Done
W: GPG error: http://repo.mysql.com/apt/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
E: The repository 'http://repo.mysql.com/apt/ubuntu focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.

The link about installing mysql is not helpful. This is not an install, rather an update.

Is this a mysql problem,or an Ubuntu problem?
Thanks,
Alan Shank

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