Ubuntu 17.04 启动时间过长

Ubuntu 17.04 启动时间过长

我的笔记本电脑有 i3 核心处理器、4 GB RAM 和 1 TB SATA HDD。启动时间太长了。

     31.658s nmbd.service
     22.035s plymouth-quit-wait.service
     14.369s preload.service
     14.245s click-system-hooks.service
     12.016s ModemManager.service
     11.097s dev-sda1.device
     10.114s NetworkManager-wait-online.service
      6.552s irqbalance.service
      5.533s networking.service
      5.329s accounts-daemon.service
      5.204s NetworkManager.service
      5.179s sddm.service
      5.173s speech-dispatcher.service
      5.171s loadcpufreq.service
      4.710s winbind.service
      4.657s lm-sensors.service
      4.626s appgrid.service
      4.626s gpu-manager.service
      4.248s avahi-daemon.service
      4.243s thermald.service
      3.858s fwupd.service
      3.802s apparmor.service
      3.648s dnsmasq.service
      3.562s upower.service
      2.473s polkit.service
      2.432s plymouth-read-write.service
      2.320s smbd.service
      2.302s grub-common.service
      2.095s gdm.service
      1.986s keyboard-setup.service
      1.846s systemd-backlight@backlight:intel_backlight.service
      1.811s rsyslog.service
      1.521s systemd-fsck@dev-disk-by\x2duuid-BFC4\x2d9612.service
      1.521s systemd-tmpfiles-setup-dev.service
      1.263s systemd-modules-load.service
      1.242s systemd-resolved.service
      1.188s systemd-rfkill.service
      1.114s systemd-udevd.service
       997ms apport.service
       934ms dns-clean.service
       863ms sys-kernel-debug.mount
       862ms dev-hugepages.mount
       860ms dev-mqueue.mount
       842ms systemd-tmpfiles-setup.service
       787ms [email protected]
       760ms systemd-timesyncd.service
       758ms openvpn.service
       707ms [email protected]
       697ms systemd-user-sessions.service
       539ms dev-sda3.swap
       491ms hostapd.service
       455ms systemd-udev-trigger.service
       415ms ufw.service
       413ms hddtemp.service
       411ms systemd-sysctl.service
       407ms rc-local.service
       392ms alsa-restore.service
       388ms udisks2.service
       378ms console-setup.service
       371ms switcheroo-control.service
       371ms pppd-dns.service
       365ms systemd-journald.service
       363ms colord.service
       336ms snap-core-1689.mount
       268ms systemd-update-utmp.service
       242ms plymouth-start.service
       242ms systemd-random-seed.service
       235ms packagekit.service
       228ms systemd-backlight@leds:dell::kbd_backlight.service
       208ms dev-loop0.device
       192ms snap-pin\x2dtown-2.mount
       180ms boot-efi.mount
       180ms kmod-static-nodes.service
       167ms systemd-journal-flush.service
       119ms dev-loop1.device
       106ms setvtrgb.service
        96ms wpa_supplicant.service
        44ms resolvconf.service
        38ms geoclue.service
        37ms rtkit-daemon.service
        32ms systemd-remount-fs.service
        20ms snapd.socket
        18ms snapd.autoimport.service
        12ms cpufrequtils.service
         8ms ureadahead-stop.service
         7ms systemd-update-utmp-runlevel.service
         3ms lightdm.service
         2ms sys-fs-fuse-connections.mount

我该如何改善这种情况?

答案1

尝试在恢复模式下启动,当出现带有第一个选项“恢复”的文本菜单时,选择修复 fchk。修复文件系统后,点击“恢复”并在登录时重新启动...

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