Centos

# Rocky 9

systemctl cat rc-local

[Service]
Type=forking
ExecStart=/etc/rc.d/rc.local start

systemctl enable rc-local            # 出 Error

systemctl edit rc-local

[Install]
WantedBy=multi-user.target

Ubuntu

touch /etc/init.d/rc.local

chmod +x /etc/init.d/rc.local

update-rc.d rc.local start 20 2 3 4 5 . stop 20 0 1 6 .

ln -s /etc/init.d/rc.local /etc/rc.local