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I currently have Pop!_OS 22.04 installed on an unencrypted ext4 partition. I want to set up a dual boot system where both Pop!_OS and Arch Linux use encrypted partitions.

Current setup:

  • nvme0n1p1: 1GB boot partition
  • nvme0n1p2: 650GB Pop!_OS (unencrypted ext4)
  • nvme0n1p3: 4GB encrypted swap
  • ~200GB unallocated space available

Goals:

  1. Convert my existing Pop!_OS to use LUKS encryption
  2. Install Arch Linux on the free space with encryption
  3. Set up GRUB to handle both encrypted systems
  4. Learn Hyprland on the Arch side while keeping Pop!_OS as daily driver

Questions:

  1. Can I encrypt an existing Pop!_OS installation in-place, or do I need to backup/restore?
  2. What's the best approach for dual boot with two separate encrypted partitions?
  3. How should GRUB be configured for this setup?
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  • Why? What's the benefit in dual-booting between two linux distros? It's not like there's anything one distro can do that the other can't - it's all a matter of what software is installed and how it's configured. IMO, your best option is to pick one of them - whichever one does more of what you need by default - and then install whatever software you need to do the rest of what you want. That way you avoid wasting disk space AND avoid wasting time booting between two distros. Or maybe run the second distro in a VM. Commented Sep 21 at 12:30
  • BTW, it looks like hyprland is a wayland compositor/window-manager - it's possible to have more than one WM installed and choose between them when you login. or even switch between them after you've logged in. Commented Sep 21 at 12:31

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