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In the systemctl status output, it says "Loaded: loaded (...; enabled; ...)" - "enabled" means that the service starts on boot. Use "systemctl enable" to "enabl

by rav 5y ago

In the systemctl status output, it says "Loaded: loaded (...; enabled; ...)" - "enabled" means that the service starts on boot. Use "systemctl enable" to "enable" a service. It creates a symlink in /etc/systemd/system/multi-user.target.wants assuming the service's unit file says to enable it through the "multi-user" target. By listing that directory you can see what services load on boot.

CameronNemo 5y ago
Not exactly. Socket units can pull in services that are not otherwise enabled. You also have to search through all of your udev rules to check if there are SYSTEMD_WANTS directives pulling services in.
- Arnavion 5y ago
  rav (correctly) said that enabled services are started automatically on boot. They didn't say that non-enabled services are not started automatically on boot.
  - nemetroid 5y ago
    They also said: > By listing that directory you can see what services load on boot.
    - Arnavion 5y ago
      Yes, and I didn't read that sentence as disallowing other ways to autostart services either.
      - nemetroid 5y ago
        To me it's equivalent to "To see what services load on boot, you can list that directory.".
- rav 5y ago
  You're right that there's a lot of nuance to the set up. I think listing that directory will solve the "it's 4:00 am and you want to know if nginx will start on boot" scenario, but you're right that you need to understand the system in more detail if you were to build tooling around it.