настроить параметры ядра при загрузке (Configure kernel parameters at boot)
Имя (Name)
systemd-sysctl.service, systemd-sysctl - Configure kernel
parameters at boot
Синопсис (Synopsis)
/usr/lib/systemd/systemd-sysctl [OPTIONS...] [CONFIGFILE...]
systemd-sysctl.service
Описание (Description)
systemd-sysctl.service is an early boot service that configures
sysctl(8) kernel parameters by invoking
/usr/lib/systemd/systemd-sysctl.
When invoked with no arguments, /usr/lib/systemd/systemd-sysctl
applies all directives from configuration files listed in
sysctl.d(5). If one or more filenames are passed on the command
line, only the directives in these files are applied.
In addition, --prefix= option may be used to limit which sysctl
settings are applied.
See sysctl.d(5) for information about the configuration of sysctl
settings. After sysctl configuration is changed on disk, it must
be written to the files in /proc/sys/ before it takes effect. It
is possible to update specific settings, or simply to reload all
configuration, see Examples below.
Параметры (Options)
--prefix=
Only apply rules with the specified prefix.
--cat-config
Copy the contents of config files to standard output. Before
each file, the filename is printed as a comment.
--no-pager
Do not pipe output into a pager.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
Примеры (Examples)
Example 1. Reset all sysctl settings
systemctl restart systemd-sysctl
Example 2. View coredump handler configuration
# sysctl kernel.core_pattern
kernel.core_pattern = |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t %P %I
Example 3. Update coredump handler configuration
# /usr/lib/systemd/systemd-sysctl --prefix kernel.core_pattern
This searches all the directories listed in sysctl.d(5) for
configuration files and writes /proc/sys/kernel/core_pattern.
Example 4. Update coredump handler configuration according to a
specific file
# /usr/lib/systemd/systemd-sysctl 50-coredump.conf
This applies all the settings found in 50-coredump.conf. Either
/etc/sysctl.d/50-coredump.conf, or
/run/sysctl.d/50-coredump.conf, or
/usr/lib/sysctl.d/50-coredump.conf will be used, in the order of
preference.
See sysctl(8) for various ways to directly apply sysctl settings.
Смотри также (See also)
systemd(1), sysctl.d(5), sysctl(8),
