reboot出错：Failed to set wall message, ignoring: Unit dbus-org.freedesktop.login1.servic
# systemctl stop dbus
# systemctl stop dbus.socket
# systemctl disable dbus
# systemctl disable dbus.socket
或
# systemctl unmask dbus
# systemctl unmask dbus.socket
参考：
https://github.com/systemd/systemd/issues/28902
