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?
I can infer that you want suggestions for cost efficient backup power. Depending on the laptop model, it could power the HDD and in case of an outage it could draw power from the laptop’s battery. It would decrease battery charge duration but it would be enough for a graceful shutdown to prevent data loss.
Alternatively, you could maybe use a battery pack.