Use the following command to configure suspend state–S3:
# sudo systemctl suspend
Use the following command to configure hibernate state–S4:
# sudo systemctl hibernate
NOTE: Hibernate state is not supported if secure-boot mode is enabled.
Configuring system wake-up from low-power states (S3/S4/S5)—WLAN
Enable Wake on WLAN in the BIOS program. For more information on accessing the BIOS program, see Accessing BIOS settings. Alternatively, use Dell Command | Configure.
Make sure wlan0 is up and running with the assigned IP address.
Perform sleep.
# sudo systemctl sleep
Or, perform hibernation.
# sudo systemctl hibernate
Use another system to wake from WLAN (Supported tools: wakeonlan and etherwake).
# sudo wakeonlan MAC
# sudo etherwake MAC
Configuring system wake-up from low-power states (S3/S4/S5)—Real-Time Clock (RTC)
Sync the time between the Edge Gateway and operating system:
(root)# hwclock --hctosys
Obtain the RTC timer sysfs:
(root)# ls -a /sys/class/rtc/rtc0
Clean-up the timer:
(root)# echo 0 > /sys/class/rtc/rtc0/wakealarm
For example, set the wake-up event for 60 seconds:
(root)# echo +60 > /sys/class/rtc/rtc0/wakealarm
For example, place the Edge Gateway in suspend mode:
(root)# systemctl suspend
If successful, the RTC will wake up the Edge Gateway in 60 seconds.
Configuring system wake-up from low-power states (S3/S4/S5)—LAN
Enable Wake on LAN in the BIOS program. For more information on accessing the BIOS program, see Accessing BIOS settings. Alternatively, use Dell Command | Configure.
# sudo /opt/dell/dcc/cctk --wakeonlan=enable
Enable Wake on LAN in nmcli (enabled by default).
# nmcli c show “Wired connection 1” | grep wake
802-3-ethernet.wake-on-lan: magic
# nmcli c show “Wired connection 2” | grep wake
802-3-ethernet.wake-on-lan: magic
Make sure the ethernet connection is up and running with the assigned IP address.
Perform sleep.
# sudo systemctl sleep
Or, perform hibernation.
# sudo systemctl hibernate
Use another system to wake from LAN (Supported tools: wakeonlan and etherwake).
# sudo wakeonlan MAC
# sudo etherwake MAC
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