SystemD - eviltoast

Ive been runing Debian 12 (kde) since bookworm was released and am loving it.

I have recently discovered Devuan which seems to be Debian without systemd - what is the benefit of removing this init system?

  • Tobias Hunger@programming.dev
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    1 year ago

    Systemd-the-init does depend on some core services and thise need to be used together: Init, logging and IPC. Anything running systemd-init will have journald for logging and IIRC DBus for communication. That’s because you need to control a system managing services, so you need to communicate with it and you need to document whatbthe managed services do, so you need logging. And you do want tested and stable code here (reusing something that was widely used in Linux before systemd started) and you do not want that code in the init process either. So systemd-the-init has very simple code tomlog and journald then has thencode needed to stream logs out to disk or to interact with other logging systems.

    Everything else is optional and in separate binaries written in a layered architecuture: Each layer uses services provided by the lower layer and offers services to layers higher up in the stack. So lots of services depend on systemd-the-init to start other processes instead of reimplementing that over and over again (thus gaining unified config files for everything that gets started and all the bells and whistles systemd-the-init has already or will pick up later).

    Or if you prefer a more negative spin: “Systemd is on huge entangled mess of interdependent binaries” :-)