Enable Binder IPC on Arch Linux

Arch Linux provides an easy way to enable Binder IPC support through the linux-zen kernel, which already includes all necessary Binder components.

Install linux-zen Kernel

The linux-zen kernel is the recommended and simplest method to get Binder IPC support on Arch Linux:

# Update system packages
$ sudo pacman -Syu

# Install linux-zen kernel and headers
$ sudo pacman -S linux-zen linux-zen-headers

# Update bootloader configuration
$ sudo grub-mkconfig -o /boot/grub/grub.cfg

# Reboot to use the new kernel
$ sudo reboot

After reboot, select the zen kernel from the GRUB menu or set it as default.

Verification

After installing and booting into the zen kernel, verify Binder support is available:

# Check current kernel
$ uname -r
# Should show something like "6.x.x-zen1-1-zen"

Install rsbinder-tools

Install the rsbinder development tools:

# Install Rust (if not already installed)
$ sudo pacman -S rustup
$ rustup default stable

# Install rsbinder-tools from crates.io
$ cargo install rsbinder-tools

Create and Test Binder Device

Create a binder device and test the setup:

# Create binder device (binderfs devices are not persistent —
# re-run this after each reboot)
# Create the `binder` group and put yourself in it (log out and back in,
# or use `newgrp binder`, for the membership to take effect)
$ sudo groupadd -f binder
$ sudo usermod -aG binder "$USER"

# Create the device, owned by that group. The node's mode is the only gate
# on who may speak binder at all, so it defaults to 0600 (root only).
$ sudo rsb_device binder --group binder --mode 0660

# Verify device creation
$ ls -la /dev/binderfs/binder

# Test with a simple example
$ git clone https://github.com/hiking90/rsbinder.git
$ cd rsbinder

# Start service manager in one terminal. --insecure-allow-all runs with no
# access control; see the Service Manager chapter for writing a policy.
$ rsb_hub --insecure-allow-all

# In another terminal, run the example
$ cargo run --bin hello_service &
$ cargo run --bin hello_client

The linux-zen kernel builds binder directly into the kernel (CONFIG_ANDROID_BINDER_IPC=y), so there is no module to load on boot — no modules-load.d or modprobe configuration is needed. The only non-persistent piece is the binderfs device itself: re-run sudo rsb_device binder --group binder --mode 0660 after each reboot (see above). The group itself persists; only the device node does not.

Note: binder_linux is the out-of-tree Anbox DKMS module, not part of the zen kernel. modules-load.d / modprobe binder_linux instructions found elsewhere apply only to that third-party module setup on kernels without built-in binder support.

Troubleshooting

If you encounter issues:

# Check kernel messages for binder-related errors
$ dmesg | grep -i binder

# Verify zen kernel is running
$ uname -r | grep zen

# Verify binder is built into the kernel config
$ zgrep -E "(ANDROID|BINDER)" /proc/config.gz

Rsbinder Development Guide