└─systemd-tmpfiles-setup.service @4.254s +42ms └─import-state.service @4.233s +19ms └─local-fs.target @4.229s └─Virtual.mount @4.019s +209ms └─systemd-fsck@dev-mapper-vg_david2\x2dVirtual.service @3.742s +274ms └─local-fs-pre.target @3.726s └─lvm2-monitor.service @356...
6) systemd-logind.service:负责管理用户登录的系统服务; 7) systemd-update-utmp-runlevel.service:切换运行级别时在utmp和wtmp中记录切换信息; 8) systemd-user-sessions.service:负责控制系统是否允许登录; 下图是这些众所周知的单元及其在启动逻辑中的位置的结构概述。箭头描述了哪些单元被启动,并在其他单元之前排序...
[root@cl-server ~]# systemd- systemd-analyze systemd-escape systemd-path systemd-ask-password systemd-firstboot systemd-run systemd-catsystemd-hwdb systemd-stdio-bridge systemd-cgls systemd-inhibit systemd-sysv-convert systemd-cgtop systemd-loginctl systemd-tmpfiles systemd-coredumpctl systemd-machine-i...
systemd 管理的服务非常多,为了区分所有服务的功能,因此,首先 systemd 先定义所有的服务为一个服务单位 (unit),并将该 unit 归类到不同的服务类型 (type) 去。 旧的 init 仅分为 stand alone 与 super daemon ,systemd 将服务单位 (unit) 区分为 service, socket, target, path, snapshot, timer ...
77ms resolvconf.service 73ms systemd-update-utmp.service 72ms systemd-user-sessions.service 66ms containerd.service 65ms media.mount 63ms plymouth-read-write.service 61ms home-user-root.mount 60ms systemd-remount-fs.service 58ms dev-hugepages.mount ...
└─systemd-update-utmp.service @9.100s +5ms └─auditd.service @9.053s +45ms └─systemd-tmpfiles-setup.service @9.024s +24ms └─import-state.service @9.010s +13ms └─local-fs.target @9.009s └─boot.mount @8.956s +53ms └─systemd-fsck@dev-disk-by\x2duuid-e2c118b0\x2dc161\...
└─systemd-update-utmp.service @4.864s+39ms └─auditd.service @4.563s+301ms └─systemd-tmpfiles-setup.service @4.485s+69ms └─rhel-import-state.service @4.342s+142ms └─local-fs.target @4.324s └─boot.mount @4.286s+31ms
serviceportreserve.serviceabrtd.serviceyum-updatesd.serviceupowerd.servicetest-first.servicepcscd.servicersyslog.servicehaldaemon.serviceremote-fs.targetplymouth-quit.servicesystemd-update-utmp-runlevel.servicesendmail.servicelvm2-monitor.servicecpuspeed.serviceudev-post.servicemdmonitor.serviceiscsid....
323ms systemd-udev-trigger.service 309ms systemd-random-seed.service 309ms systemd-update-utmp.service 307ms systemd-vconsole-setup.service 305ms systemd-rfkill@rfkill0.service 294ms dev-sda7.swap 257ms systemd-rfkill@rfkill3.service 254ms systemd-tmpfiles-setup-dev.service 252ms systemd-rfkill@...
[ 7.689190] systemd[1]: Started Create Volatile Files and Directories. [ OK ] Started Create Volatile Files and Directories. [ 7.715818] systemd[1]: Starting Update UTMP about System Boot/Shutdown... Starting Update UTMP about System Boot/Shutdown... ...