So, I bought a hardware encrypted flash drive. The plan is to store my key file on it, so it can autostart my encrypted array after a reboot, but lock the drive when the device is powered down (in case of theft).

 

I've looked at a lot of tutorials, but most of them show how to mount a network share that hosts your key file. If I toggle auto-mount on the USB drive in unassigned devices, it only mounts the usb drive when the array starts.

 

Is there a way to mount the drive before the array starts, so I can read my key file off of it?

Solved it, it's pretty easily solvable by simply adding the mount command to the unRAID go file. Mounted the drive by uuid, imported the key file before emhttp starts and unmount the drive afterwards. Now my encrypted array starts without me having to provide the key file manually :)