How to Update the GPG Key on Debian/Ubuntu

If your BitNinja installation or update/upgrade fails due to a GPG signature error, it’s likely related to a missing or outdated GPG key used to verify the repository. Follow the steps below to update the key and fix the issue.

🛠 Step 1: Update the BitNinja GPG Key

Run the following command in your terminal to fetch and install the updated key using the trusted keyring method:

curl -sSL http://apt.bitninja.io/7F8B47DC.gpg | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/bitninja.gpg > /dev/null

This command downloads the key, converts it to the proper format, and stores it securely in the APT trusted keyring directory.

🔄 Step 2: Refresh Package List

Once the key is updated, refresh your APT package list:

sudo apt-get update

You should no longer see GPG-related errors.

🔁 Alternative Method (Legacy Systems)

If the command above does not work (for example, on older Debian/Ubuntu versions), you can try this fallback method:

wget -O- http://apt.bitninja.io/7F8B47DC.gpg | sudo apt-key add -

⚠️ Note: This method is deprecated and less secure. Use the trusted keyring method above whenever possible.

❓ Need Help?

If you experience issues with this process, please don’t hesitate to contact our support team:

📧 Email: info@bitninja.io

We’re happy to help you get things running smoothly.