Your password just unlocks the volume key which is used to decrypt/encrypt the data. It sounds like the volume key is on our PC, not the external drive. I don’t have much experience with LUKs and none with using it on an external drive, but I suspect that you will need to wipe the drive and set it up again while ensuring that the volume key is stored on the external drive itself.
Your password just unlocks the volume key which is used to decrypt/encrypt the data. It sounds like the volume key is on our PC, not the external drive. I don’t have much experience with LUKs and none with using it on an external drive, but I suspect that you will need to wipe the drive and set it up again while ensuring that the volume key is stored on the external drive itself.