我昨天买了一台戴尔 XPS 13 9360-5142,专门用来安装 Ubuntu 18.04。奇怪的是,它启动需要将近 90 秒。
系统启动后,出现戴尔徽标,然后屏幕变为 Ubuntu 黑色背景,然后在启动约 20-30 秒后屏幕关闭,然后在约 75 秒后重新打开,出现 Ubuntu 徽标并在几秒钟后进入登录屏幕。
我不太明白为什么它要花这么长时间,它运行在一个不错的 CPU 和 SSD 上,所以我认为最多只需要 30 秒就可以启动。它还会在重启时挂起,左上角有一个闪烁的光标......
有人知道发生了什么事吗?
systemd-analyze 输出:
Startup finished in 9.226s (firmware) + 3.834s (loader) + 33.914s (kernel) + 7.915s (userspace) = 54.890s
graphical.target reached after 7.866s in userspace
systemd-analyze blame 输出:
5.846s NetworkManager-wait-online.service
3.013s plymouth-quit-wait.service
1.504s bolt.service
1.328s plymouth-start.service
1.016s fwupd.service
974ms systemd-backlight@backlight:intel_backlight.service
946ms apparmor.service
858ms plymouth-read-write.service
568ms dev-mapper-ubuntu\x2d\x2dvg\x2droot.device
296ms dev-loop11.device
286ms snapd.service
284ms dev-loop12.device
283ms dev-loop15.device
281ms dev-loop16.device
280ms dev-loop14.device
272ms dev-loop13.device
251ms NetworkManager.service
196ms systemd-logind.service
173ms systemd-udev-trigger.service
171ms systemd-timesyncd.service
169ms systemd-resolved.service
149ms networkd-dispatcher.service
138ms snap-ubuntu\x2dsocial\x2dkit-3.mount
135ms snap-canonical\x2dlivepatch-41.mount
131ms snap-gtk\x2dcommon\x2dthemes-319.mount
129ms snap-gnome\x2dcalculator-180.mount
128ms snap-gnome\x2dcalculator-154.mount
127ms snap-gnome\x2dlogs-25.mount
126ms snap-gnome\x2dlogs-37.mount
125ms snap-gnome\x2d3\x2d26\x2d1604-70.mount
122ms snap-gnome\x2dcharacters-103.mount
121ms snap-gnome\x2dsystem\x2dmonitor-51.mount
119ms udisks2.service
119ms snap-libreoffice-71.mount
115ms networking.service
114ms ModemManager.service
108ms accounts-daemon.service
106ms keyboard-setup.service
101ms systemd-rfkill.service
91ms upower.service
83ms lvm2-pvscan@259:2.service
76ms systemd-journal-flush.service
76ms snap-google\x2dplay\x2dmusic\x2ddesktop\x2dplayer-47.mount
74ms snap-gnome\x2dcharacters-69.mount
72ms dev-loop5.device
72ms speech-dispatcher.service
71ms avahi-daemon.service
71ms systemd-journald.service
71ms apport.service
69ms dev-loop9.device
68ms rtkit-daemon.service
67ms snap-gnome\x2d3\x2d26\x2d1604-59.mount
64ms dev-loop8.device
63ms dev-loop10.device
63ms dev-loop7.device
62ms dev-loop6.device
58ms grub-common.service
53ms packagekit.service
51ms snap-gnome\x2dsystem\x2dmonitor-36.mount
48ms bluetooth.service
46ms rsyslog.service
45ms thermald.service
44ms wpa_supplicant.service
43ms [email protected]
42ms snap-core-4917.mount
42ms gpu-manager.service
41ms lvm2-monitor.service
41ms [email protected]
35ms snap-core-4486.mount
33ms systemd-udevd.service
28ms colord.service
26ms systemd-modules-load.service
25ms systemd-update-utmp-runlevel.service
21ms systemd-fsck@dev-disk-by\x2duuid-818C\x2dFA47.service
21ms gdm.service
18ms dev-loop0.device
17ms systemd-tmpfiles-setup.service
16ms ufw.service
16ms polkit.service
15ms kerneloops.service
14ms pppd-dns.service
14ms snapd.seeded.service
14ms blk-availability.service
13ms sys-kernel-debug.mount
13ms systemd-tmpfiles-setup-dev.service
12ms dev-hugepages.mount
12ms dns-clean.service
12ms dev-loop1.device
11ms systemd-sysctl.service
11ms systemd-remount-fs.service
10ms dev-mqueue.mount
9ms dev-loop4.device
9ms boot-efi.mount
8ms systemd-random-seed.service
7ms ureadahead-stop.service
6ms systemd-update-utmp.service
6ms kmod-static-nodes.service
6ms console-setup.service
6ms sys-fs-fuse-connections.mount
5ms systemd-user-sessions.service
5ms dev-loop3.device
4ms sys-kernel-config.mount
4ms dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.swap
3ms systemd-backlight@leds:dell::kbd_backlight.service
3ms setvtrgb.service
2ms snapd.socket
答案1
刚刚尝试使用我的 Dell XPS 15 9560 进行双启动。Windows 10 可在几秒钟内启动,但 Ubuntu 可能需要一分钟才能进入登录屏幕,然后再花 30 秒加载我的用户桌面。难以忍受!所以我研究了这个问题,现在我的启动时间不到 10 秒。好多了 :)
那么,我做了什么?好吧,我已经全新安装了 Ubuntu(我运行的是 19.10,但在 18.04 上应该也能正常工作)。但首先,我更新了固件,使用 Ubuntu 软件应用程序可以轻松完成,但我还听说这个命令应该可以解决问题。我不认为这实际上解决了问题,但无论如何,建议这样做。
sudo fwupdwgr update
sudo reboot
所以我认为真正起作用的是安装 Nvidia 的专有驱动程序。因为我也遇到过桌面偶尔会冻结的问题,但会持续几秒钟。所以此主题帮助我解决了这个问题,但突然启动时间就变短了。因此,要安装它,只需运行
sudo ubuntu-drivers autoinstall
sudo reboot
突然间,一切都变得顺畅无比,启动和登录都很快。一切都如此快速和敏捷!祝你好运!