NAME¶
udev.conf, udev.conf.d - Configuration for device event managing
daemon
SYNOPSIS¶
/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
DESCRIPTION¶
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.
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)).