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Let's put the power_state global node into the /sys/kernel directory, because that directory represents all global nodes and variables being related to the Kernel. It's also a mutable node, that is more acceptable being in the mentioned directory due to the fact that all other files in the /sys/firmware directory are just firmware blobs and are not mutable at all.
304 B
304 B
Name
reboot - Reboot the machine
Synopsis
$ reboot
Description
reboot
instructs the kernel to reboot the machine immediately.
Notes
The reboot
utility opens the /sys/kernel/power_state
node and writes the magic value "1"
to instruct the kernel to reboot the machine.