1--- 2layout: default 3SPDX-License-Identifier: LGPL-2.1-or-later 4--- 5 6# System and Service Manager 7 8systemd 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. 9 10systemd 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. 11 12Other 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. 13 14--- 15 16{% assign by_category = site.pages | group_by:"category" %} 17{% assign extra_pages = site.data.extra_pages | group_by:"category" %} 18{% assign merged = by_category | concat: extra_pages | sort:"name" %} 19 20{% for pair in merged %} 21 {% if pair.name != "" %} 22## {{ pair.name }} 23{% assign sorted = pair.items | sort:"title" %}{% for page in sorted %} 24* [{{ page.title }}]({{ page.url | relative_url }}){% endfor %} 25 {% endif %} 26{% endfor %} 27 28## See also 29 30* [Introductory blog story](http://0pointer.de/blog/projects/systemd.html) 31* [Three](http://0pointer.de/blog/projects/systemd-update.html) [status](http://0pointer.de/blog/projects/systemd-update-2.html) [updates](http://0pointer.de/blog/projects/systemd-update-3.html) 32* The [Wikipedia article](https://en.wikipedia.org/wiki/systemd) 33 34--- 35 36<pre class="intro-code-block"> 37Welcome to <span class="color-blue">Fedora 20 (Heisenbug)</span>! 38 39[ <span class="color-green">OK</span> ] Reached target Remote File Systems. 40[ <span class="color-green">OK</span> ] Listening on Delayed Shutdown Socket. 41[ <span class="color-green">OK</span> ] Listening on /dev/initctl Compatibility Named Pipe. 42[ <span class="color-green">OK</span> ] Reached target Paths. 43[ <span class="color-green">OK</span> ] Reached target Encrypted Volumes. 44[ <span class="color-green">OK</span> ] Listening on Journal Socket. 45 Mounting Huge Pages File System... 46 Mounting POSIX Message Queue File System... 47 Mounting Debug File System... 48 Starting Journal Service... 49[ <span class="color-green">OK</span> ] Started Journal Service. 50 Mounting Configuration File System... 51 Mounting FUSE Control File System... 52[ <span class="color-green">OK</span> ] Created slice Root Slice. 53[ <span class="color-green">OK</span> ] Created slice User and Session Slice. 54[ <span class="color-green">OK</span> ] Created slice System Slice. 55[ <span class="color-green">OK</span> ] Reached target Slices. 56[ <span class="color-green">OK</span> ] Reached target Swap. 57 Mounting Temporary Directory... 58[ <span class="color-green">OK</span> ] Reached target Local File Systems (Pre). 59 Starting Load Random Seed... 60 Starting Load/Save Random Seed... 61[ <span class="color-green">OK</span> ] Mounted Huge Pages File System. 62[ <span class="color-green">OK</span> ] Mounted POSIX Message Queue File System. 63[ <span class="color-green">OK</span> ] Mounted Debug File System. 64[ <span class="color-green">OK</span> ] Mounted Configuration File System. 65[ <span class="color-green">OK</span> ] Mounted FUSE Control File System. 66[ <span class="color-green">OK</span> ] Mounted Temporary Directory. 67[ <span class="color-green">OK</span> ] Started Load Random Seed. 68[ <span class="color-green">OK</span> ] Started Load/Save Random Seed. 69[ <span class="color-green">OK</span> ] Reached target Local File Systems. 70 Starting Recreate Volatile Files and Directories... 71 Starting Trigger Flushing of Journal to Persistent Storage... 72[ <span class="color-green">OK</span> ] Started Recreate Volatile Files and Directories. 73 Starting Record System Reboot/Shutdown in UTMP... 74[ <span class="color-green">OK</span> ] Started Trigger Flushing of Journal to Persistent Storage. 75[ <span class="color-green">OK</span> ] Started Record System Reboot/Shutdown in UTMP. 76[ <span class="color-green">OK</span> ] Reached target System Initialization. 77[ <span class="color-green">OK</span> ] Reached target Timers. 78[ <span class="color-green">OK</span> ] Listening on D-Bus System Message Bus Socket. 79[ <span class="color-green">OK</span> ] Reached target Sockets. 80[ <span class="color-green">OK</span> ] Reached target Basic System. 81 Starting Permit User Sessions... 82 Starting D-Bus System Message Bus... 83[ <span class="color-green">OK</span> ] Started D-Bus System Message Bus. 84 Starting Login Service... 85 Starting Cleanup of Temporary Directories... 86[ <span class="color-green">OK</span> ] Started Permit User Sessions. 87[ <span class="color-green">OK</span> ] Started Cleanup of Temporary Directories. 88 Starting Console Getty... 89[ <span class="color-green">OK</span> ] Started Console Getty. 90[ <span class="color-green">OK</span> ] Reached target Login Prompts. 91[ <span class="color-green">OK</span> ] Started Login Service. 92[ <span class="color-green">OK</span> ] Reached target Multi-User System. 93 94Fedora release 20 (Heisenbug) 95Kernel 3.9.2-200.fc18.x86_64 on an x86_64 (console) 96 97fedora login: 98</pre> 99