Install Updates could not fetch the package cache information lists - NO_PUBKEY

Install Updates could not fetch the package cache information lists - NO_PUBKEY - Printable Version

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+--- Thread: Install Updates could not fetch the package cache information lists - NO_PUBKEY (/showthread.php?tid=8912)

Install Updates could not fetch the package cache information lists - NO_PUBKEY - Pradeepa Ranasinghe - 09-03-2023

Get:1 http://repo.mysql.com/apt/ubuntu jammy InRelease [20.3 kB]
Hit:2 http://packages.microsoft.com/repos/code stable InRelease
Err:1 http://repo.mysql.com/apt/ubuntu jammy InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29
Hit:3 http://repo.linuxliteos.com/linuxlite fluorite InRelease
Hit:4 http://archive.canonical.com/ubuntu jammy InRelease
Hit:5 https://dl.google.com/linux/chrome/deb stable InRelease
Hit:6 http://archive.ubuntu.com/ubuntu jammy InRelease
Hit:7 https://packages.microsoft.com/ubuntu/18.04/mssql-server-2019 bionic InRelease
Hit:8 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:9 https://packages.microsoft.com/ubuntu/20.04/mssql-server-2022 focal InRelease
Hit:10 http://archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:11 https://packages.microsoft.com/ubuntu/20.04/prod focal InRelease
Hit:12 http://archive.ubuntu.com/ubuntu jammy-security InRelease
Reading package lists...
W: GPG error: http://repo.mysql.com/apt/ubuntu jammy 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 jammy InRelease' is not signed.

Re: Install Updates could not fetch the package cache information lists - NO_PUBKEY - stevef - 09-03-2023

Open a terminal by pressing Ctrl, Alt and T together.
Copy or paste this command into the terminal session

Code:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29

Enter your password when asked, then retry the update process.

Re: Install Updates could not fetch the package cache information lists - NO_PUBKEY - Pradeepa Ranasinghe - 09-09-2023

apt --fix-broken install
does not execute. Ask for root password. do not continue

Re: Install Updates could not fetch the package cache information lists - NO_PUBKEY - stevef - 09-09-2023

Please post your error logs if you are having problems with updates.