How to force Ubuntu to wake up from suspend after a complete power outage?

Question

linux

There is a laptop with ubuntu. If you make a suspension, and then remove the power and battery after it, and then insert it in reverse, then ubunta will not wake up, but will reboot. Is it possible to train ubuntu to wake up on power loss?

Answer 1

The suspend mode saves power on the RAM, and of course it is impossible to exit it after the power is turned off, since the contents of the RAM are lost. You need hibernate mode when the content of RAM is saved to hdd.