Welcome to Fedora 20 (Heisenbug)!

[  OK  ] Reached target Remote File Systems.
[  OK  ] Listening on Delayed Shutdown Socket.
[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
[  OK  ] Reached target Paths.
[  OK  ] Reached target Encrypted Volumes.
[  OK  ] Listening on Journal Socket.
         Mounting Huge Pages File System...
         Mounting POSIX Message Queue File System...
         Mounting Debug File System...
         Starting Journal Service...
[  OK  ] Started Journal Service.
         Mounting Configuration File System...
         Mounting FUSE Control File System...
[  OK  ] Created slice Root Slice.
[  OK  ] Created slice User and Session Slice.
[  OK  ] Created slice System Slice.
[  OK  ] Reached target Slices.
[  OK  ] Reached target Swap.
         Mounting Temporary Directory...
[  OK  ] Reached target Local File Systems (Pre).
         Starting Load Random Seed...
         Starting Load/Save Random Seed...
[  OK  ] Mounted Huge Pages File System.
[  OK  ] Mounted POSIX Message Queue File System.
[  OK  ] Mounted Debug File System.
[  OK  ] Mounted Configuration File System.
[  OK  ] Mounted FUSE Control File System.
[  OK  ] Mounted Temporary Directory.
[  OK  ] Started Load Random Seed.
[  OK  ] Started Load/Save Random Seed.
[  OK  ] Reached target Local File Systems.
         Starting Recreate Volatile Files and Directories...
         Starting Trigger Flushing of Journal to Persistent Storage...
[  OK  ] Started Recreate Volatile Files and Directories.
         Starting Update UTMP about System Reboot/Shutdown...
[  OK  ] Started Trigger Flushing of Journal to Persistent Storage.
[  OK  ] Started Update UTMP about System Reboot/Shutdown.
[  OK  ] Reached target System Initialization.
[  OK  ] Reached target Timers.
[  OK  ] Listening on D-Bus System Message Bus Socket.
[  OK  ] Reached target Sockets.
[  OK  ] Reached target Basic System.
         Starting Permit User Sessions...
         Starting D-Bus System Message Bus...
[  OK  ] Started D-Bus System Message Bus.
         Starting Login Service...
         Starting Cleanup of Temporary Directories...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Cleanup of Temporary Directories.
         Starting Console Getty...
[  OK  ] Started Console Getty.
[  OK  ] Reached target Login Prompts.
[  OK  ] Started Login Service.
[  OK  ] Reached target Multi-User System.

Fedora release 20 (Heisenbug)
Kernel 3.9.2-200.fc18.x86_64 on an x86_64 (console)

fedora login:

This page has been obsoleted and replaced. All the new contents are on the new website: https://systemd.io/.

systemd System and Service Manager

What is this?

systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system. systemd provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. systemd supports SysV and LSB init scripts and works as a replacement for sysvinit. Other parts include a logging daemon, utilities to control basic system configuration like the hostname, date, locale, maintain a list of logged-in users and running containers and virtual machines, system accounts, runtime directories and settings, and daemons to manage simple network configuration, network time synchronization, log forwarding, and name resolution. See the introductory blog story and three status updates for a longer introduction. Also see the Wikipedia article.


This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.


Yes, it is written systemd, not system D or System D, or even SystemD. And it isn't system d either. Why? Because it's a system daemon, and under Unix/Linux those are in lower case, and get suffixed with a lower case d. And since systemd manages the system, it's called systemd. It's that simple. But then again, if all that appears too simple to you, call it (but never spell it!) System Five Hundred since D is the roman numeral for 500 (this also clarifies the relation to System V, right?). The only situation where we find it OK to use an uppercase letter in the name (but don't like it either) is if you start a sentence with systemd. On high holidays you may also spell it sÿstëmd. But then again, Système D is not an acceptable spelling and something completely different (though kinda fitting).


Mailing List

Bug Reports

Open bugs Open pull requests

Also check out various distributions bugtrackers:



Most Importantly, Git

Package repositories of the various distributions

Continuous Integration

We also do continuous fuzzing on oss-fuzz.


Manuals and Documentation for Users and Administrators

Videos for Users and Administrators

The systemd for Administrators Blog Series

Also available: a Russian translation; another, more complete Russian translation as PDF; a Vietnamese translation

Documentation for Developers

The systemd for Developers Series

Related Packages