How does Ubuntu’s Full Disk Encryption work? I believe it works by encrypting a partition with LUKS (default settings with AES), and then puts some volumes on it with LVM (like / , swap), and decrypts and mounts them at boot after you enter a passphrase.

How does Linux disk encryption work?

Whole disk encryption encrypts the entire disk including swap files, system files, and hibernation files. If an encrypted disk is lost, stolen, or placed into another computer, the encrypted state of the drive remains unchanged, and only an authorized user can access its contents.

Does Ubuntu have full disk encryption?

Note that full disk encryption is only achieved during the installation of the Ubuntu Desktop operating system. It encrypts all the partitions including swap space, system partitions and every bit of data stored on the block volume.