LXer: Automatically Unlock LUKS Encrypted Drives With A Keyfile
 

Published at LXer:

This howto shows how to unlock multiple devices in the intial ramdisk remotely. I suggest to use a keyfile for automatic unlocking. The keyfile should be stored in the normally encrypted root partition - so you still have to unlock that one. During boot process it will then be used to unlock all the other devices.

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