[Image description:
Screenshot of terminal output:

~ ❯ lsblk
NAME           MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
sda              8:0    1  62.5M  0 disk  
└─topLuks      254:2    0  60.5M  0 crypt 
  └─bottomLuks 254:3    0  44.5M  0 crypt

/end image description]

I had no idea!

If anyone else is curious, it’s pretty much what you would expect:

cryptsetup -y -v luksFormat /dev/sda
cryptsetup open /dev/sda topLuks
cryptsetup -y -v luksFormat /dev/mapper/topLuks
cryptsetup open /dev/mapper/topLuks bottomLuks
lsblk

Then you can make a filesystem and mount it:

mkfs.ext4 /dev/mapper/bottomLuks
mount /dev/mapper/bottomLuks ~/mnt/embeddedLuksTest

I’ve tested putting files on it and then unmounting & re-encrypting it, and the files are indeed still there upon decrypting and re-mounting.

Again, sorry if this is not news to anyone else, but I didn’t realise this was possible before, and thought it was very cool when I found it out. Sharing in case other people didn’t know and also find it cool :)

  • unexposedhazard
    17·
    9 months ago

    Well considdering it was posted by a user with the username “communism” i will assume bottomLuks

      • JustEnoughDucks@feddit.nl
        8·
        9 months ago

        That’s very true.

        But Marxist-Leninism (Lemmy.ml), the attempt to make communism practical and achievable and bumbling into fascism, does have a hierarchy.

      • Overshoot2648@lemm.ee
        2·
        9 months ago

        Wouldn’t that be Anarchism/ Libertarian Socialism? Communism requires a state which is an implicit hierarchy.

        • delirious_owl@discuss.online
          2·
          9 months ago

          No, anarcho-communists build their own systems of governments that are ruled from the bottom, without a hierarchy.

          You dont need a hierarchy to have a State that works for the people