Boot live media, mount the drive, copy it off.

I love posts like these. I have no idea what I’m reading half the time, but whatever they’re doing sounds interesting!

Reminder that unless you are protecting the lives of others, no job is worth your own life. Keeping a hospital online to keep patients alive? Sure, I might stay through a hurricane for that. Keeping email online for Helen in accounting? Nah, that can wait. We have DR plans.

Also, you don’t significantly increase a generator’s efficiency by removing the load. In fact, they need to have a minimum load to run properly (https://en.wikipedia.org/wiki/Wet_stacking). If you wanted to save fuel, you’d have to shut it down completely. If you wanted to ensure continuous operation, you’d already have a fuel truck on standby to go in behind the hurricane and refuel.