Software⏱️ 3 min read📅 2026-06-11

How to Fix: Running “apt-get update” returns an error “apt-secure(8)”

Error resolving Ubuntu Game Pack repository due to weak digest algorithm and missing public key. Resolve by updating GPG keys and enabling repository signing.

Quick Answer: Update your system's GPG keys, enable repository signing, and try again with apt-get update.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

The error 'apt-secure(8)' is encountered when running 'sudo apt-get update' on Ubuntu Game Pack. This issue affects users who have installed the PlayOnLinux package manager, which can cause problems with repository authentication.

Resolving this error can be frustrating as it prevents users from updating their system and installing new packages. However, by following these steps, you should be able to resolve the issue and get your Ubuntu system up-to-date.

🛑 Root Causes of the Error

  • The primary reason for this error is that the PlayOnLinux package manager is not properly configured to handle repository authentication. This can occur due to missing or outdated GPG keys.
  • An alternative cause could be a corrupted or incomplete repository configuration, which may require manual intervention to resolve.

✅ Best Solutions to Fix It

Update and Configure GPG Keys

  1. Step 1: Step 1: Update your system's package list by running 'sudo apt update'. This will ensure that you have the latest package information.
  2. Step 2: Step 2: Install the required GPG keys for PlayOnLinux by running 'sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 73F0D6E88E3D6C3A'. Note: You may need to run this command multiple times until you receive a successful response.
  3. Step 3: Step 3: Add the PlayOnLinux repository to your system's configuration by running 'sudo nano /etc/apt/sources.list.d/playonlinux.list' and adding the following line: deb http://deb.playonlinux.com trusty InRelease
  4. Step 4: method_2_name

Alternative Advanced Fix

    💡 Conclusion

    Once you have followed these steps, you should be able to update your system and install new packages without encountering the 'apt-secure(8)' error. Remember to restart your system or run 'sudo apt full-upgrade' to apply any available updates.

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