Manual: systemd-udev-settle.service

SYSTEMD-UDEV-SETTLE.SERVICE(8)			 systemd-udev-settle.service		      SYSTEMD-UDEV-SETTLE.SERVICE(8)

NAME
       systemd-udev-settle.service - Wait for all pending udev events to be handled

SYNOPSIS
       systemd-udev-settle.service

DESCRIPTION
       This service calls udevadm settle to wait until all events that have been queued by udev(7) have been processed. It
       is a crude way to wait until "all" hardware has been discovered. Services may pull in this service and order
       themselves after it to wait for the udev queue to be empty.

       Using this service is not recommended.  There can be no guarantee that hardware is fully discovered at any specific
       time, because the kernel does hardware detection asynchronously, and certain buses and devices take a very long time
       to become ready, and also additional hardware may be plugged in at any time. Instead, services should subscribe to
       udev events and react to any new hardware as it is discovered. Services that, based on configuration, expect certain
       devices to appear, may warn or report failure after a timeout. This timeout should be tailored to the hardware type.
       Waiting for systemd-udev-settle.service usually slows boot significantly, because it means waiting for all unrelated
       events too.

SEE ALSO
       udev(7), udevadm(8)

systemd 259.5										      SYSTEMD-UDEV-SETTLE.SERVICE(8)