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submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

Hey magical linux-oracle,

I recently made a full disk encryption on my computer via the debian installer.

I partitioned it like this:

SSD:

-- unencrypted part --

Boot - 1GB space, mounting point: /boot

EFI - 512MB space, mounting point: ESP, bootable flag: on

-- encrypted part --

Encrypted container with a volume group (vg-1) containing 3 logical volumes:

Root - 50GB space, mounting point: /

Swap - 30GB space, mounting point: swap

Home - Rest of space, mounting point: /home

& Second harddrive fully encrypted with one logical volume and mounting point /mnt/data


The install of linux worked pretty well.

Unfortunately, the hibernation part doesn't work out of the box. When I press hibernate (or standby), it only goes to the lock screen. How can I solve that issue? (Is it even a good idea to use hibernation on encrypted devices?)

Second thing: As you can see from my setup, I use 2 disks. When I start up my system, I only need to enter my decryption password once (not twice for the 2nd HD) and I see, that my second hard disk seems to be mounted already. It seems that people usually struggle with typing in their passwords twice and want a solution for that. Is it possible, that debian automatically fixed this for me (It's the same pw for both)?

Thanks!

~sp3ctre

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[-] [email protected] 7 points 1 week ago

Not sure about Debian, but on Arch Linux, hibernation with FDE works perfectly on my Framework laptop. It took a little to setup; I use a swapfile for my swap. And it exists on my encrypted drive. You know your use case best,I found for my usecase, a separate swap partition (to say nothing about two separate ones) was restrictive and unnecessary. A swapfile works well and lives on an encrypted drive. No need to tinker too much beyond that. Check out the Arch wiki, it might not align 100% with Debian but those wikis are super informative and can teach you how the process works so you can apply to Debian.

https://wiki.archlinux.org/title/Dm-crypt/Swap_encryption#With_suspend-to-disk_support

this post was submitted on 05 Jun 2025
35 points (94.9% liked)

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