Choosing an Init System on Artix Linux: Decision Guide with Concrete Validation

Choosing an Init System on Artix Linux

Artix Linux ships four mutually exclusive init systems—OpenRC, runit, s6, and dinit. The choice is made once at install time because the package repositories, service directories, and PID 1 binary are tied to a single init. Picking the wrong one forces a full reinstall, so the decision must match your operational preferences and the services you plan to run.

Constraints

• Installation ISO profile (or base package group) determines the init; mixing init‑specific repositories breaks service files.
• All four init systems avoid systemd while staying compatible with Arch Linux packages.
• Rolling‑release updates can change service definitions; verify the current repository layout before installing.

Comparison Table

Init	Service Management Style	Learning Curve	Ecosystem & Docs	Supervision Features	Typical Fit
OpenRC	SysV‑like scripts, runlevels, dependency‑based parallel start	Low – familiar to SysV/BSD users	Largest (Arch Wiki, Artix Wiki)	Basic supervision via openrc-init	General purpose, servers, desktops
runit	Per‑service directories under /etc/runit/sv, symlinked into /var/service	Very low – minimal concepts	Good, but smaller than OpenRC	Built‑in supervise with automatic restart	Minimalist, containers, embedded
s6	Compiled service database (s6-rc-compile), managed by s6-rc/s6-svscan	Steep – new terminology (oneshot, longrun, pipeline)	Growing, but fewer pre‑written services	Advanced: fd‑holding, readiness notification, event‑driven	High‑reliability, complex dependency graphs
dinit	Declarative service files, managed by dinitctl	Moderate – new but simple syntax	Smallest; many services must be authored	Dependency‑based, correctness‑focused	Early adopters, minimalist systems

Trade‑offs

OpenRC gives the broadest coverage of ready‑made service scripts and the most community knowledge. Its runlevel model maps cleanly to traditional server setups, but the script overhead is larger than runit’s single‑process supervisor.

runit excels when you want a tiny, auditable code base. Each service is a directory with a run script; the supervisor restarts crashes automatically. The downside is the lack of built‑in dependency ordering—services start in parallel unless you script ordering yourself.

s6 provides the richest supervision primitives (file‑descriptor passing, readiness signals, graceful shutdown pipelines). It shines when you need fine‑grained control over service lifecycles, but you must learn the s6-rc database compilation step and write more service definitions yourself.

dinit aims for correctness with a declarative format and explicit dependency graph. It is still maturing; expect to author service files for anything beyond the core set.

Concrete Validation: OpenRC

Run the following as root on a fresh Artix‑OpenRC install.

# Enable NetworkManager for the default runlevel
rc-update add NetworkManager default
# Start the service now
rc-service NetworkManager start
# Verify it is running
rc-status | grep NetworkManager

Expected check: rc-status shows NetworkManager [ started ]. If the service fails, inspect /var/log/rc.log for errors.

Concrete Validation: runit

Run the following as root on a fresh Artix‑runit install.

# Link the service directory into the supervision tree
ln -s /etc/runit/sv/NetworkManager /var/service/
# runit’s supervisor picks it up automatically; verify
sv status NetworkManager

Expected check: sv status NetworkManager returns run: NetworkManager: (pid XXXX) 123s. If it shows down, examine /etc/runit/sv/NetworkManager/run for script errors.

Verification Checklist

1. Confirm PID 1 matches the chosen init:

   ps -p 1 -o comm=
   

   Expected output: openrc-init, runit-init, s6-svscan, or dinit.
2. Inspect /etc/pacman.conf – the [artix-*] repository must correspond to your init (e.g., artix-openrc).
3. Test a second service (e.g., sshd) using the init‑specific commands to ensure the service ecosystem works.
4. Consult the Artix Wiki (wiki.artixlinux.org) for the latest installation guide for your init.

Limitations

• Switching init systems after installation is unsupported; a reinstall with the desired ISO profile is required.
• Installing packages from a mismatched artix-* repository yields missing or non‑functional service files.
• s6 and dinit have fewer pre‑built service definitions; you may need to write custom service files for uncommon daemons.
• Because Artix is rolling‑release, repository layout and service scripts can change; always verify the current state before a new install.

Practical Result Check

After completing the validation steps, run the verification checklist. If PID 1, repository, and service status all match the expected init, the installation is correctly configured. Any mismatch indicates a repository or ISO selection error and warrants a reinstall with the proper profile.