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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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UDEV.CONF(5) udev.conf UDEV.CONF(5)
udev.conf, udev.conf.d - Configuration for device event managing
daemon
/etc/udev/udev.conf
/run/udev/udev.conf
/usr/local/lib/udev/udev.conf
/usr/lib/udev/udev.conf
/etc/udev/udev.conf.d/*.conf
/run/udev/udev.conf.d/*.conf
/usr/local/lib/udev/udev.conf.d/*.conf
/usr/lib/udev/udev.conf.d/*.conf
These files contain configuration options for systemd-udevd(8).
The syntax of these files is very simple: a list of assignments,
one per line. All empty lines or lines beginning with "#" are
ignored.
The following options can be set:
udev_log=
The log level. Valid values are the numerical syslog
priorities or their textual representations: err, info and
debug.
Note
This option is also honored by udevadm(8).
Added in version 216.
children_max=
An integer. The maximum number of events executed in parallel.
When unspecified or 0 is specified, the maximum is determined
based on the system resources.
This is the same as the --children-max= option.
Added in version 240.
exec_delay=
An integer. Delay the execution of each RUN{program} parameter
by the given number of seconds. This option might be useful
when debugging system crashes during coldplug caused by
loading non-working kernel modules.
This is the same as the --exec-delay= option.
Added in version 240.
event_timeout=
An integer. The number of seconds to wait for events to
finish. After this time, the event will be terminated. The
default is 180 seconds.
This is the same as the --event-timeout= option.
Added in version 240.
resolve_names=
Specifies 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.
This is the same as the --resolve-names= option.
Added in version 240.
timeout_signal=
Specifies a signal that systemd-udevd will send on worker
timeouts. Note that both workers and spawned processes will be
killed using this signal. Defaults to SIGKILL.
Added in version 246.
In addition, systemd-udevd can be configured by command line
options and the kernel command line (see systemd-udevd(8)).
systemd-udevd(8), udev(7), udevadm(8)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a
bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2025-02-02. (At that
time, the date of the most recent commit that was found in the
repository was 2025-02-02.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
systemd 258~devel UDEV.CONF(5)
Pages that refer to this page: systemd.directives(7), systemd.index(7), systemd.system-credentials(7), systemd-udevd.service(8), udevadm(8)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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