docs/index.md

   1 ---
   2 layout: default
   3 SPDX-License-Identifier: LGPL-2.1-or-later
   4 ---
   5
   6 # System and Service Manager
   7
   8 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.
   9
  10 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.
  11
  12 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.
  13
  14 ---
  15 ## Project
  16 {% for page in site.data.project %}
  17 * [{{ page.title }}]({{ page.url | relative_url }}){% endfor %}
  18
  19 <!-- Collections -->
  20 {% for c in site.collections %}
  21 <!-- hide autegenerated posts collection -->
  22 {% if c.label != "posts" %}
  23 ## {{ c.title }}
  24 {% for item in site[c.label] %}
  25 * [{{ item.title }}]({{ item.url | relative_url }}){% endfor %}
  26 {% endif %}
  27 {% endfor %}
  28
  29 <!-- external pages -->
  30 {% assign external_pages = site.data.extra_pages | group_by:"category" %}
  31
  32 {% for category in external_pages %}
  33 ## {{ category.name }}
  34 {% assign sorted = category.items | sort:"title" %}{% for page in sorted %}
  35 * [{{ page.title }}]({{ page.url | relative_url }}){% endfor %}
  36 {% endfor %}
  37
  38 ## See also
  39
  40 * [Introductory blog story](https://0pointer.de/blog/projects/systemd.html)
  41 * [Three](https://0pointer.de/blog/projects/systemd-update.html) [status](https://0pointer.de/blog/projects/systemd-update-2.html) [updates](https://0pointer.de/blog/projects/systemd-update-3.html)
  42 * The [Wikipedia article](https://en.wikipedia.org/wiki/systemd)
  43
  44 ---
  45
  46 <pre class="intro-code-block">
  47 Welcome to <span class="color-blue">Fedora 20 (Heisenbug)</span>!
  48
  49 [  <span class="color-green">OK</span>  ] Reached target Remote File Systems.
  50 [  <span class="color-green">OK</span>  ] Listening on Delayed Shutdown Socket.
  51 [  <span class="color-green">OK</span>  ] Listening on /dev/initctl Compatibility Named Pipe.
  52 [  <span class="color-green">OK</span>  ] Reached target Paths.
  53 [  <span class="color-green">OK</span>  ] Reached target Encrypted Volumes.
  54 [  <span class="color-green">OK</span>  ] Listening on Journal Socket.
  55          Mounting Huge Pages File System...
  56          Mounting POSIX Message Queue File System...
  57          Mounting Debug File System...
  58          Starting Journal Service...
  59 [  <span class="color-green">OK</span>  ] Started Journal Service.
  60          Mounting Configuration File System...
  61          Mounting FUSE Control File System...
  62 [  <span class="color-green">OK</span>  ] Created slice Root Slice.
  63 [  <span class="color-green">OK</span>  ] Created slice User and Session Slice.
  64 [  <span class="color-green">OK</span>  ] Created slice System Slice.
  65 [  <span class="color-green">OK</span>  ] Reached target Slices.
  66 [  <span class="color-green">OK</span>  ] Reached target Swap.
  67          Mounting Temporary Directory...
  68 [  <span class="color-green">OK</span>  ] Reached target Local File Systems (Pre).
  69          Starting Load Random Seed...
  70          Starting Load/Save Random Seed...
  71 [  <span class="color-green">OK</span>  ] Mounted Huge Pages File System.
  72 [  <span class="color-green">OK</span>  ] Mounted POSIX Message Queue File System.
  73 [  <span class="color-green">OK</span>  ] Mounted Debug File System.
  74 [  <span class="color-green">OK</span>  ] Mounted Configuration File System.
  75 [  <span class="color-green">OK</span>  ] Mounted FUSE Control File System.
  76 [  <span class="color-green">OK</span>  ] Mounted Temporary Directory.
  77 [  <span class="color-green">OK</span>  ] Started Load Random Seed.
  78 [  <span class="color-green">OK</span>  ] Started Load/Save Random Seed.
  79 [  <span class="color-green">OK</span>  ] Reached target Local File Systems.
  80          Starting Recreate Volatile Files and Directories...
  81          Starting Trigger Flushing of Journal to Persistent Storage...
  82 [  <span class="color-green">OK</span>  ] Started Recreate Volatile Files and Directories.
  83          Starting Record System Reboot/Shutdown in UTMP...
  84 [  <span class="color-green">OK</span>  ] Started Trigger Flushing of Journal to Persistent Storage.
  85 [  <span class="color-green">OK</span>  ] Started Record System Reboot/Shutdown in UTMP.
  86 [  <span class="color-green">OK</span>  ] Reached target System Initialization.
  87 [  <span class="color-green">OK</span>  ] Reached target Timers.
  88 [  <span class="color-green">OK</span>  ] Listening on D-Bus System Message Bus Socket.
  89 [  <span class="color-green">OK</span>  ] Reached target Sockets.
  90 [  <span class="color-green">OK</span>  ] Reached target Basic System.
  91          Starting Permit User Sessions...
  92          Starting D-Bus System Message Bus...
  93 [  <span class="color-green">OK</span>  ] Started D-Bus System Message Bus.
  94          Starting Login Service...
  95          Starting Cleanup of Temporary Directories...
  96 [  <span class="color-green">OK</span>  ] Started Permit User Sessions.
  97 [  <span class="color-green">OK</span>  ] Started Cleanup of Temporary Directories.
  98          Starting Console Getty...
  99 [  <span class="color-green">OK</span>  ] Started Console Getty.
 100 [  <span class="color-green">OK</span>  ] Reached target Login Prompts.
 101 [  <span class="color-green">OK</span>  ] Started Login Service.
 102 [  <span class="color-green">OK</span>  ] Reached target Multi-User System.
 103
 104 Fedora release 20 (Heisenbug)
 105 Kernel 3.9.2-200.fc18.x86_64 on an x86_64 (console)
 106
 107 fedora login:
 108 </pre>