Environment
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 6
Issue
After changing the udev rules configuration in
/etc/udev/rules。d/
， how to reload rules configuration without restarting “udev” service using
start_udev
？
能否使用start_udev命令？
Resolution
After making the changes in udev configuration if there is no possibility to reboot the server，
udevadm trigger
can be utilized to reload the new rules configuration in udev：
# /sbin/udevadm control ——reload-rules# /sbin/udevadm trigger ——type=devices ——action=change
Run following command for specific event：
# echo change > /sys/block/
Refer
man udevadm
for more details。
More documentation is available on the system in /usr/share/doc/udev-147/writing_udev_rules/index。html。
另外能否使用start_udev命令？原廠給出明確答覆：
Nobody should ever run start_udev, only rc.sysinit should call start_udev.
NOTE:
Running a “start_udev” will cause the network hotplug action to be applied to every interface configuration file on the host which does not have HOTPLUG=no set。
This will activate any interface which does not have HOTPLUG=no set， regardless of the ONBOOT setting。
If you would like to avoid this then please ensure that each ifcfg file has HOTPLUG=no set。
使用start_udev命令可能導致網路重啟，除非網絡卡配置檔案裡面包含hotplug=no引數。
