Linux Administration Cookbook

How it works...

On systemd systems, it's generally the case that fstab is managed by systemd anyway.

What's actually happening when a system boots is that the systemd-fstab-generator reads the /etc/fstab file, and translates what it finds there into systemd units. This is the reason you can list mounts with systemctl:

$ systemctl list-units *.mount --no-legend-.mount                      loaded active mounted /boot.mount                   loaded active mounted /bootdev-hugepages.mount          loaded active mounted Huge Pages File Systemdev-mqueue.mount             loaded active mounted POSIX Message Queue File Systemopt.mount                    loaded active mounted /optrun-user-1000.mount          loaded active mounted /run/user/1000srv.mount                    loaded active mounted Mounting our logical volume asrvsys-kernel-config.mount loaded ...