Update:
With the native Manjaro installer I succeeded in making my disk encrypted. But it’s below the btrfs layer (btrfs sits inside the encryption)
Update:
With the native Manjaro installer I succeeded in making my disk encrypted. But it’s below the btrfs layer (btrfs sits inside the encryption)
You can also apply luks to an existing partition
Not easily. Doing it after the fact is hairy at best.