I’m running a Ubuntu server on my old laptop with an external HDD connected to it. The external HDD is powered independently from the laptop, as it is plugged into the wall.
During a power outage, my laptop remains operational due to its battery, but the HDD shuts down. When power is restored, my laptop does not automatically remount the HDD, and I have to reboot the system manually to access it.
Does anyone know how I can resolve this issue?
Edit: Not sure if this added context changes anything, but this is the HDD I’m using. It’s a 3.5" HDD that gets its power directly from the wall.


First step is to not use a laptop with a charged/charging battery in it as an always-on server. Terrible idea.
Could you please elaborate on why this is a bad idea?
Having a battery that is constantly charging and kept at 100% is bad for the battery. Very bad. Batteries don’t like heat, and being kept on and in use endlessly generates heat constantly. Batteries should be avoided for things like this as they can swell and/or explode.
This depends entirely on the motherboard because many newer ones are fully capable of disconnecting the battery and maintaining it intelligently like smartphones does
Chill bro they have BMS’s. I keep my always plugged in laptop at 60% battery for this reason but they aren’t infants you don’t need to baby them.