Install Mullvad browser at Linux Mint Debian Edition

Install Mullvad browser at Linux Mint Debian Edition #

When using install instructions for Ubuntu/Debian at apt update command this error is shown

Ign:14 https://repository.mullvad.net/deb/stable faye InRelease
Err:15 https://repository.mullvad.net/deb/stable faye Release
  404  Not Found [IP: 45.149.104.1 443]
Reading package lists... Done
E: The repository 'https://repository.mullvad.net/deb/stable faye Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.

Being the problem that lsb_release reports the Linux Mint codename instead the Debian codename. It can be found at /etc/os-release file (sources Linux ORG man page and How to Check Linux Mint Version Number & Codename)

This are the whole command line instructions

# Download the Mullvad signing key
sudo curl -fsSLo /usr/share/keyrings/mullvad-keyring.asc https://repository.mullvad.net/deb/mullvad-keyring.asc

# Add the Mullvad repository server to apt
echo "deb [signed-by=/usr/share/keyrings/mullvad-keyring.asc arch=$( dpkg --print-architecture )] https://repository.mullvad.net/deb/stable $(grep DEBIAN_CODENAME /etc/os-release | awk -F= '{print $2}') main" | sudo tee /etc/apt/sources.list.d/mullvad.list

# Install the package
sudo apt update
sudo apt install mullvad-browser

Original bug report and solution at github