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=
is set to false
, target units will
implicitly complement all configured dependencies of
type Wants=
,
Requires=
,
RequiresOverridable=
with
dependencies of type After=
if the
units in question also have
DefaultDependencies=true
.