查看systemd依赖关系

#systemctl list-dependencies multi-user.target
* |-avahi-daemon.service
* |-dbus-broker.service
* |-dropbearkey.service
* |-hostlogger@ttyS2.service
* |-lpcsnoop.service
x |-me-time-sync.service
* |-nscd.service
* |-nslcd.service
* |-obmc-console@ttyS2.service
* |-obmc-dump-monitor.service
* |-obmc-fru-fault-monitor.service
* |-obmc-led-group-start@bmc_booted.service
* |-phosphor-certificate-manager@authority.service
* |-phosphor-certificate-manager@bmcweb.service
* |-phosphor-certificate-manager@nslcd.service
* |-phosphor-health-monitor.service
* |-phosphor-ipmi-host.service
* |-phosphor-ipmi-kcs@ipmi_kcs3.service
* |-phosphor-ipmi-kcs@ipmi_kcs4.service
* |-phosphor-ipmi-net@eth0.service
* |-phosphor-ipmi-net@eth1.service
* |-phosphor-pid-control.service
* |-phosphor-systemd-target-monitor.service
* |-phosphor-virtual-sensor.service
* |-ramoops-monitor.service
* |-rsyslog.service
* |-slpd-lite.service
* |-start-ipkvm.service
* |-systemd-ask-password-wall.path
* |-systemd-networkd.service
* |-systemd-resolved.service
* |-systemd-user-sessions.service
* |-trace-enable.service
* |-usb_network.service
* |-xyz.openbmc_project.adcsensor.service
* |-xyz.openbmc_project.cpusensor.service
* |-xyz.openbmc_project.Dump.Manager.service
* |-xyz.openbmc_project.EntityManager.service
* |-xyz.openbmc_project.exitairsensor.service
* |-xyz.openbmc_project.externalsensor.service
* |-xyz.openbmc_project.fansensor.service
* |-xyz.openbmc_project.FruDevice.service
* |-xyz.openbmc_project.hwmontempsensor.service
* |-xyz.openbmc_project.intrusionsensor.service
* |-xyz.openbmc_project.ipmbsensor.service
* |-xyz.openbmc_project.Ldap.Config.service
* |-xyz.openbmc_project.LED.GroupManager.service
* |-xyz.openbmc_project.Logging.IPMI.service
* |-xyz.openbmc_project.Logging.service
* |-xyz.openbmc_project.mcutempsensor.service
* |-xyz.openbmc_project.Network.service
* |-xyz.openbmc_project.ObjectMapper.service
* |-xyz.openbmc_project.psusensor.service
* |-xyz.openbmc_project.Settings.service
* |-xyz.openbmc_project.Software.BMC.Updater.service
* |-xyz.openbmc_project.Software.Download.service
* |-xyz.openbmc_project.Software.Version.service
* |-xyz.openbmc_project.State.BMC.service
* |-xyz.openbmc_project.State.Boot.PostCode.service
* |-xyz.openbmc_project.Syslog.Config.service
* |-xyz.openbmc_project.Telemetry.service
* |-xyz.openbmc_project.Time.Manager.service
* |-xyz.openbmc_project.User.Manager.service
* |-basic.target
* | |--.mount
* | |-ipmb.service
* | |-tmp.mount
* | |-paths.target
* | |-slices.target
* | | |--.slice
* | | `-system.slice
* | |-sockets.target
* | | |-avahi-daemon.socket
* | | |-bmcweb.socket
* | | |-dbus.socket
* | | |-dropbear.socket
* | | |-obmc-console-ssh.socket
* | | |-phosphor-ipmi-net@eth0.socket
* | | |-phosphor-ipmi-net@eth1.socket
* | | |-systemd-coredump.socket
* | | |-systemd-initctl.socket
* | | |-systemd-journald-audit.socket
* | | |-systemd-journald-dev-log.socket
* | | |-systemd-journald.socket
* | | |-systemd-networkd.socket
* | | |-systemd-udevd-control.socket
* | | `-systemd-udevd-kernel.socket
* | |-sysinit.target
* | | |-dev-hugepages.mount
* | | |-dev-mqueue.mount
* | | |-kmod-static-nodes.service
* | | |-rngd.service
* | | |-run-postinsts.service
* | | |-sys-fs-fuse-connections.mount
* | | |-sys-kernel-config.mount
* | | |-sys-kernel-debug.mount
* | | |-sys-kernel-tracing.mount
* | | |-systemd-ask-password-console.path
* | | |-systemd-hwdb-update.service
* | | |-systemd-journal-catalog-update.service
* | | |-systemd-journal-flush.service
* | | |-systemd-journald.service
* | | |-systemd-machine-id-commit.service
* | | |-systemd-modules-load.service
* | | |-systemd-network-generator.service
* | | |-systemd-pstore.service
* | | |-systemd-random-seed.service
* | | |-systemd-sysctl.service
* | | |-systemd-sysusers.service
* | | |-systemd-timesyncd.service
* | | |-systemd-tmpfiles-setup-dev.service
* | | |-systemd-tmpfiles-setup.service
* | | |-systemd-udev-trigger.service
* | | |-systemd-udevd.service
* | | |-systemd-update-done.service
* | | |-xyz.openbmc_project.Chassis.Control.Power@0.service
* | | |-local-fs.target
* | | | |--.mount
* | | | |-systemd-fsck-root.service
* | | | |-systemd-remount-fs.service
* | | | |-tmp.mount
* | | | |-var-volatile-cache.service
* | | | |-var-volatile-lib.service
* | | | |-var-volatile-spool.service
* | | | |-var-volatile-srv.service
* | | | `-var-volatile.mount
* | | `-swap.target
* | `-timers.target
* |   |-logrotate.timer
* |   `-systemd-tmpfiles-clean.timer
* |-getty.target
* | |-getty@tty1.service
* | `-serial-getty@ttyS4.service
* `-remote-fs.target