udevd - Device event managing daemon
udevd
/sbin/udevd [--daemon] [--debug]
[--children-max=] [--exec-delay=] [--event-timeout=]
[--resolve-names=early|late|never] [--version]
[--help]
udevd listens to kernel uevents. For every event, 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.
-d, --daemon
Detach and run in the background.
-D, --debug
Print debug messages to standard error.
-c, --children-max=
Limit the number of events executed in parallel.
-e, --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.
-t, --event-timeout=
Set the number of seconds to wait for events to finish.
After this time the event will be terminated. The default is 30 seconds.
-N, --resolve-names=
Specify when 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.
-h, --help
Parameters starting with "rd." will be read when
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.
udev.conf(5), udev(7), udevadm(8)