this post was submitted on 12 Oct 2025
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Privacy

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This makes a world of difference. I know many people may know of it but may not actually do it. It Protects your files in case your computer is ever stolen and prevents alphabet agencies from just brute forcing into your Laptop or whatever.

I found that Limine (bootloader) has the fastest decryption when paired with LUKS at least for my laptop.

If your computer isn't encrypted I could make a live USB of a distro, plug it into your computer, boot, and view your files on your hard drive. Completely bypassing your Login manager. If your computer is encrypted I could not. Use a strong password and different from your login

Benefits of Using LUKS with GRUB Enhanced Security

  • Data Protection: LUKS (Linux Unified Key Setup) encrypts disk partitions, ensuring that data remains secure even if the physical device is stolen.
  • Full Disk Encryption: It can encrypt the entire disk, including sensitive files and swap space, preventing unauthorized access to confidential information.

Compatibility with GRUB

  • Unlocking from Bootloader: GRUB can unlock LUKS-encrypted partitions using the cryptomount command, allowing the system to boot securely without exposing sensitive data.
  • Support for LVM: When combined with Logical Volume Management (LVM), LUKS allows for flexible partition management while maintaining encryption.
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[–] Eheran@lemmy.world 4 points 7 hours ago (6 children)

What about data safety, backups etc.? If someone has access to my PC, that is already pretty catastrophic.

[–] RotatingParts@lemmy.ml 5 points 7 hours ago (3 children)

Good question. Along the same lines, if your disk is encrypted and you make a simple backup (say using cp) is the backup encrypted and if so, how do you restore from that?

[–] ruby@lemmy.dbzer0.com 1 points 5 hours ago

the backup wouldn't be encrypted but you can use luks to encrypt the backup drive too, the same way as you'd do with a drive in your computer.

i use rsync to send off my /home to an encrypted backup drive and restoring it you just reverse the source and destination and copy the stuff back.

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