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-rw-r--r--init/udev-settle.service.in11
1 files changed, 11 insertions, 0 deletions
diff --git a/init/udev-settle.service.in b/init/udev-settle.service.in
index c5d7e96cb3..be06a39352 100644
--- a/init/udev-settle.service.in
+++ b/init/udev-settle.service.in
@@ -1,3 +1,11 @@
+# This barrier service is usually not enabled by default. If enabled,
+# it acts as a barrier for basic.target -- so all later services will
+# wait for udev completely finishing its coldplug run.
+#
+# It might be enabled just unconditionally, or pulled-in on-demand by
+# broken or non-hotplug-aware services that assume a fully populated
+# /dev at startup.
+
[Unit]
Description=udev Wait for Complete Device Initialization
DefaultDependencies=no
@@ -8,3 +16,6 @@ Before=basic.target
Type=oneshot
RemainAfterExit=yes
ExecStart=@sbindir@/udevadm settle
+
+[Install]
+WantedBy=basic.target