No reboot needed: man systemctl daemon-reexec Reexecute the systemd manager. This will serialize the manager state, reexecute the

No reboot needed: man systemctl daemon-reexec Reexecute the systemd manager. This will serialize the manager state, reexecute the process and deserialize the state again. This command is of little use except for debugging and package upgrades. Sometimes, it might be helpful as a heavy-weight daemon-reload. While the daemon is being reexecuted, all sockets systemd listening on behalf of user configuration will stay accessible.