Discoverable Partitions Specification

The Discoverable Partitions Specification (DPS) defines GPT partition type UUIDs that let the OS automatically discover and mount partitions (root, /home, swap, ESP, …​) without an /etc/fstab entry. systemd implements it via systemd-gpt-auto-generator.

Basic usage

# inspect GPT partition type UUIDs
lsblk -o NAME,PARTTYPE,PARTTYPENAME

# see what systemd auto-generated from partition types
systemctl list-units -t mount

Source