Ubuntu 15.04启动速度很慢
我环顾四周寻找问题的答案，但从未找到，所以我在寻求帮助。
$ uname -a
Linux Aspire-E1-570 3.19.0-16-generic＃16-Ubuntu SMP Thu Apr 30 16:09:58 UTC 2015 x86_64 x86_64 x86_64 GNU / Linux
和
$ systemd-analyze
启动在4.010s（固件）+ 4.277s（加载器）+ 5.155s（内核）+ 50.863s（用户空间）= 1min完成4.307s
和
$ systemd-分析责备
26.598s gpu-manager.service 13.898s plymouth-quit-wait.service 13.430s ModemManager.service 12.833s NetworkManager.service 12.191s systemd-udev-settle.service 11.549s accounts-daemon.service 11.484s binfmt-support.service 11.305s systemd-logind.service 11.062s dev-disk-by\x2duuid-b7542b6f\x2d4b2b\x2d46a1\x2db1a9\x2dbeea0e6 10.840s ondemand.service 10.839s irqbalance.service 10.833s bluetooth.service 10.826s rsyslog.service 10.812s apport.service 10.463s preload.service 10.460s grub-common.service 10.454s systemd-user-sessions.service 10.454s avahi-daemon.service 10.445s thermald.service 6.191s ufw.service 5.975s NetworkManager-wait-online.service 5.680s kerneloops.service 5.176s systemd-udevd.service
和
$ systemd-分析关键链
graphical.target @50.834s └─multi-user.target @50.834s └─getty.target @50.834s └─getty@tty1.service @50.833s └─rc-local.service @36.878s +50ms └─network.target @36.792s └─wpa_supplicant.service @37.252s +232ms └─basic.target @23.578s └─sockets.target @23.578s └─cups.socket @23.577s └─sysinit.target @23.551s └─networking.service @23.113s +436ms └─apparmor.service @19.125s +3.982s └─local-fs.target @19.117s └─boot-efi.mount @18.879s +235ms └─systemd-fsck@dev-disk-by\x2duuid-0230\x2d399C.serv └─local-fs-pre.target @17.701s └─systemd-remount-fs.service @17.576s +92ms └─systemd-fsck-root.service @17.127s +445ms └─systemd-fsckd.socket @4.274s └─-.slice @3.913s
有人能帮我吗？ 你还需要什么吗？ 谢谢
测试其他ubuntu版本，如14.04.3 LTS或15.10，看看你的问题是否也出现在那里
在启动/关闭过程中按F1键以查看系统的确切错误，以及挂起/花费时间的内容