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Installation

b4 installs on Linux devices: servers, computers, and routers. Pick the method that matches your system:

  • Linux - universal installation on any Linux distribution
  • OpenWRT - routers running OpenWRT firmware
  • ASUS Merlin - ASUS routers running Merlin firmware
  • Keenetic - Keenetic routers
  • MikroTik - RouterOS 7.x via containers
  • Docker - run inside a Docker container

After installation, b4 is available through the web interface in the browser (default port 7000).

Update and remove​

Update​

curl -fsSL https://raw.githubusercontent.com/DanielLavrushin/b4/main/install.sh | sh -s -- --update

Or update to a specific version:

curl -fsSL https://raw.githubusercontent.com/DanielLavrushin/b4/main/install.sh | sh -s -- v1.46.5

During an update, the current binary is saved as a backup, the service is stopped, replaced with the new version, and started again. The configuration is not touched.

Remove​

curl -fsSL https://raw.githubusercontent.com/DanielLavrushin/b4/main/install.sh | sh -s -- --remove

On removal:

  1. The service is stopped and removed from autostart
  2. The binary is deleted
  3. The configuration is kept or removed based on your choice (the installer asks whether to delete /etc/b4 or /opt/etc/b4)

Diagnostics​

To print system information, the installed version, and the state of kernel modules:

curl -fsSL https://raw.githubusercontent.com/DanielLavrushin/b4/main/install.sh | sh -s -- --sysinfo