>> Where do you store the key anyway? The key itself is on an encrypted drive, an extra passphrase is not required for my purposes. > Sorry didn't read your message carefully. I assumed it was a system > drive as you were using rc. Nope, it is an external drive. > Why not use a udev rule as дамјан mentioned. > That's what systemd would use anyway. Or even a simple button in your > gui to mount it. Thanks for reminding me of udev rules. I've now created a udev rule which triggers the decryption; even better than the rc.local solution since it will be decrypted whenever I plug the external drive in. The timing issue remains. My drive is really slow compared to a very new one; I will replace it eventually anyway, so it's just a matter of time that the problem disappears... J.