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[Question] Encrypted Partition Unlock via Root Unlocking (programming.dev)

submitted 2 months ago by [email protected] to c/[email protected]

8 comments fedilink hide all child comments

cross-posted from: https://programming.dev/post/19007507

For context:
I've encrypted the swap partition with:
cryptsetup -v luksFormat /dev/${DEVICE}
cryptsetup luksOpen /dev/${DEVICE} swap
And what I want is for the user to be able to enter their password only once to decrypt their root partition which would contain a keyfile to then decrypt their swap partition.

Does anyone know if this is possible?
Just thought I'd ask to see if anyone's done this already

Links:

Dm-crypt Unlocking - With a keyfile embedded in the initramfs

Dm-crypt - Automated unlocking and mounting

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[–] [email protected] 2 points 2 months ago

Why not just use a swap file instead of a partition?