diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml index 3d4707cb2c..a2969739e8 100644 --- a/man/systemd.unit.xml +++ b/man/systemd.unit.xml @@ -721,9 +721,10 @@ BindsTo= Configures requirement dependencies, very similar in style to - Requires=. However, this dependency type is stronger: in addition to the effect of - Requires= it declares that if the unit bound to is stopped, this unit will be stopped - too. This means a unit bound to another unit that suddenly enters inactive state will be stopped too. + Requires=. However, this dependency type is stronger: in addition to the effects of + Requires=, which already stops (or restarts) the configuring unit when a listed unit is + explicitly stopped (or restared), it also does so when a listed unit stops unexpectedly (which includes when it + fails). Units can suddenly, unexpectedly enter inactive state for different reasons: the main process of a service unit might terminate on its own choice, the backing device of a device unit might be unplugged or the mount point of a mount unit might be unmounted without involvement of the system and service manager.