systemd.target — Target unit configuration
target
.target
A unit configuration file whose name ends in
".target
" encodes information about a target unit
of systemd, which is used for grouping units and as well-known
synchronization points during start-up.
This unit type has no specific options. See systemd.unit(5) for the common options of all unit configuration files. The common configuration items are configured in the generic [Unit] and [Install] sections. A separate [Target] section does not exist, since no target-specific options may be configured.
Target units do not offer any additional functionality on
top of the generic functionality provided by units. They exist
merely to group units via dependencies (useful as boot targets),
and to establish standardized names for synchronization points
used in dependencies between units. Among other things, target
units are a more flexible replacement for SysV runlevels in the
classic SysV init system. (And for compatibility reasons special
target units such as runlevel3.target
exist
which are used by the SysV runlevel compatibility code in systemd.
See
systemd.special(7)
for details).
Unless DefaultDependencies=
in the "[Unit]
" section is set to
no
, target units will implicitly complement all configured dependencies of type
Wants=
, Requires=
with dependencies of type After=
, unless
an ordering dependency of any kind between the target and the respective other unit is already in place. Note that
this behaviour is disabled if either unit has DefaultDependencies=no
.