Agreed, seems to be exactly this. https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html https://www.kernel.org/doc/html/latest/admin-guide/sysrq.htm...

Agreed, seems to be exactly this. https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html https://www.kernel.org/doc/html/latest/admin-guide/sysrq.htm... echo 1 > /proc/sys/kernel/sysrq # enable sysrq echo o > /proc/sysrq-trigger # immediately power off