'\" t .TH "SYSTEMD\-UDEV\-SETTLE\&.SERVICE" "8" "" "systemd 256.6" "systemd-udev-settle.service" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" systemd-udev-settle.service \- Wait for all pending udev events to be handled .SH "SYNOPSIS" .PP systemd\-udev\-settle\&.service .SH "DESCRIPTION" .PP This service calls \fBudevadm settle\fR to wait until all events that have been queued by \fBudev\fR(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\&. .PP \fIUsing this service is not recommended\&.\fR 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\&. .SH "SEE ALSO" .PP \fBudev\fR(7), \fBudevadm\fR(8)