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SYSTEMD\-UDEVD\&.SERVICE
Section: systemd-udevd.service (8) Updated: Index
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NAME
systemd-udevd.service, systemd-udevd-control.socket, systemd-udevd-kernel.socket, systemd-udevd - Device event managing daemon
SYNOPSIS
systemd-udevd.service
systemd-udevd-control.socket
systemd-udevd-kernel.socket
-
/usr/lib/systemd/systemd-udevd [--daemon] [--debug] [--children-max=] [--exec-delay=] [--event-timeout=] [--resolve-names=early|late|never] [--version] [--help]
DESCRIPTION
systemd-udevd
listens to kernel uevents. For every event, systemd-udevd executes matching instructions specified in udev rules. See
udev(7).
The behavior of the daemon can be configured using
udev.conf(5), its command line options, environment variables, and on the kernel command line, or changed dynamically with
udevadm control.
OPTIONS
--daemon
-
Detach and run in the background.
--debug
-
Print debug messages to standard error.
--children-max=
-
Limit the number of events executed in parallel.
--exec-delay=
-
Delay the execution of
RUN
instructions by the given number of seconds. This option might be useful when debugging system crashes during coldplug caused by loading non-working kernel modules.
--event-timeout=
-
Set the number of seconds to wait for events to finish. After this time, the event will be terminated. The default is 180 seconds.
--resolve-names=
-
Specify when systemd-udevd should resolve names of users and groups. When set to
early
(the default), names will be resolved when the rules are parsed. When set to
late, names will be resolved for every event. When set to
never, names will never be resolved and all devices will be owned by root.
--help
-
Print a short help text and exit.
--version
-
Print a short version string and exit.
KERNEL COMMAND LINE
Parameters starting with "rd." will be read when
systemd-udevd
is used in an initrd.
udev.log_priority=, rd.udev.log_priority=
-
Set the log level.
udev.children_max=, rd.udev.children_max=
-
Limit the number of events executed in parallel.
udev.exec_delay=, rd.udev.exec_delay=
-
Delay the execution of
RUN
instructions by the given number of seconds. This option might be useful when debugging system crashes during coldplug caused by loading non-working kernel modules.
udev.event_timeout=, rd.udev.event_timeout=
-
Wait for events to finish up to the given number of seconds. This option might be useful if events are terminated due to kernel drivers taking too long to initialize.
net.ifnames=
-
Network interfaces are renamed to give them predictable names when possible. It is enabled by default; specifying 0 disables it.
SEE ALSO
udev.conf(5),
udev(7),
udevadm(8)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- KERNEL COMMAND LINE
-
- SEE ALSO
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