https://docs.bareos.org/IntroductionAndTutorial/InstallingBareos.html
In the "Start the Daemons" section it's listed as:
root@host:~# systemctl enable --now bareos-dir
root@host:~# systemctl enable --now bareos-sd
root@host:~# systemctl enable --now bareos-fd
At least on my Ubuntu 24.04 when I issue these commands I receive:
"Failed to enable unit: Refusing to operate on alias name or linked unit file: bareos-dir.service" (etc)
Calling them by their full name does work, however:
root@host:~# systemctl enable --now bareos-director
root@host:~# systemctl enable --now bareos-storage
root@host:~# systemctl enable --now bareos-filedaemon