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| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2019-12-18 11:23:30 +0100 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2019-12-19 13:32:31 +0100 |
| commit | 277519db51291c7e11b2120016c39914520f5009 (patch) | |
| tree | e86c0712f47c5dafb6e1be6f5f9a9688b6777ebd | |
| parent | man: add remote-*.targets to the bootup sequence (diff) | |
| download | systemd-277519db51291c7e11b2120016c39914520f5009.tar.xz systemd-277519db51291c7e11b2120016c39914520f5009.zip | |
man: add section about user manager units
| -rw-r--r-- | man/bootup.xml | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/man/bootup.xml b/man/bootup.xml index 4641e86e10..28f14891d9 100644 --- a/man/bootup.xml +++ b/man/bootup.xml @@ -161,6 +161,45 @@ emergency.service | | | </refsect1> <refsect1> + <title>User manager startup</title> + + <para>The system manager starts the <filename>user@<replaceable>uid</replaceable>.service</filename> unit + for each user, which launches a separate unprivileged instance of <command>systemd</command> for each + user — the user manager. Similarly to the system manager, the user manager starts units which are pulled + in by <filename>default.target</filename>. The following chart is a structural overview of the well-known + user units. For non-graphical sessions, <filename>default.target</filename> is used. Whenever the user + logs into a graphical session, the login manager will start the + <filename>graphical-session.target</filename> target that is used to pull in units required for the + grahpical session. A number of targets (shown on the right side) are started when specific hardware is + available to the user.</para> + +<programlisting> + (various (various (various + timers...) paths...) sockets...) (sound devices) + | | | | + v v v v + timers.target paths.target sockets.target sound.target + | | | + \______________ _|_________________/ (bluetooth devices) + \ / | + V v + basic.target bluetooth.target + | + __________/ \_______ (smartcard devices) + / \ | + | | v + | v smartcard.target + v graphical-session-pre.target + (various user services) | (printers) + | v | + | (services for the graphical sesion) v + | | printer.target + v v + <emphasis>default.target</emphasis> graphical-session.target</programlisting> + + </refsect1> + + <refsect1> <title>Bootup in the Initial RAM Disk (initrd)</title> <para>The initial RAM disk implementation (initrd) can be set up using systemd as well. In this case, boot up inside the initrd |