这是来自systemd-analyze
Startup finished in 6.677s (firmware) + 5.010s (loader) + 5.180s (kernel) + 2min 13.817s (userspace) = 2min 30.686s
graphical.target reached after 2min 12.124s in userspace
这是来自systemd-analyze blame
1min 27.700s plymouth-quit-wait.service
26.782s snapd.service
26.376s networkd-dispatcher.service
22.288s dev-sda2.device
22.263s systemd-journal-flush.service
14.767s fwupd.service
13.648s NetworkManager-wait-online.service
13.069s udisks2.service
12.799s accounts-daemon.service
11.841s grub-common.service
10.900s NetworkManager.service
10.522s dev-loop6.device
9.941s polkit.service
9.440s avahi-daemon.service
9.435s bluetooth.service
9.070s dev-loop14.device
8.937s dev-loop23.device
8.928s dev-loop24.device
8.920s dev-loop12.device
8.866s dev-loop21.device
8.783s dev-loop13.device
8.720s switcheroo-control.service
8.707s thermald.service
8.694s systemd-logind.service
8.673s dev-loop15.device
8.555s dev-loop16.device
8.533s wpa_supplicant.service
8.261s dev-loop22.device
8.231s vboxdrv.service
8.211s dev-loop4.device
8.069s dev-loop11.device
8.056s dev-loop19.device
8.037s dev-loop18.device
7.983s dev-loop17.device
7.979s dev-loop10.device
7.642s dev-loop20.device
7.257s dev-loop9.device
7.158s dev-loop7.device
7.121s dev-loop8.device
6.918s dev-loop3.device
6.713s dev-loop0.device
6.609s dev-loop5.device
5.350s bolt.service
5.018s upower.service
4.719s ModemManager.service
4.288s dev-loop2.device
4.096s dev-loop1.device
3.944s apparmor.service
3.017s gpu-manager.service
2.798s snapd.seeded.service
2.586s systemd-tmpfiles-setup.service
2.544s systemd-udevd.service
2.510s rsyslog.service
2.473s ua-messaging.service
2.360s gdm.service
2.292s colord.service
2.156s apport.service
1.895s secureboot-db.service
1.802s snapd.apparmor.service
1.733s systemd-resolved.service
1.687s tlp.service
1.441s e2scrub_reap.service
1.287s [email protected]
1.217s motd-news.service
1.122s systemd-random-seed.service
1.020s systemd-sysctl.service
933ms snap-vlc-2344.mount
920ms snap-kde\x2dframeworks\x2d5\x2dqt\x2d5\x2d15\x2dcore20-14.mount
916ms snap-snap\x2dstore-518.mount
905ms grub-initrd-fallback.service
901ms snap-gtk\x2dcommon\x2dthemes-1515.mount
839ms pppd-dns.service
835ms snap-snapd-12398.mount
829ms snap-telegram\x2ddesktop-2814.mount
796ms systemd-tmpfiles-setup-dev.service
780ms systemd-modules-load.service
757ms snap-gnome\x2dcalendar-158.mount
738ms systemd-udev-trigger.service
728ms snap-core-11316.mount
722ms snap-snapd-12159.mount
649ms snap-snap\x2dstore-547.mount
630ms snap-telegram\x2ddesktop-2800.mount
625ms snap-vlc-2288.mount
599ms snap-kdenlive-26.mount
586ms systemd-sysusers.service
528ms keyboard-setup.service
512ms systemd-journald.service
498ms snap-code-67.mount
484ms [email protected]
482ms snap-gtk\x2dcommon\x2dthemes-1514.mount
477ms swapfile.swap
463ms systemd-fsck@dev-disk-by\x2duuid-3006\x2d0FF4.service
446ms systemd-backlight@backlight:intel_backlight.service
441ms snap-gnome\x2dclocks-375.mount
424ms systemd-timesyncd.service
418ms snap-gnome\x2d3\x2d34\x2d1804-72.mount
406ms plymouth-start.service
404ms snap-core-11187.mount
343ms snap-bitwarden-50.mount
299ms systemd-user-sessions.service
296ms snap-gnome\x2d3\x2d28\x2d1804-145.mount
270ms systemd-update-utmp.service
270ms snap-gnome\x2d3\x2d34\x2d1804-66.mount
249ms snap-core18-2074.mount
224ms dev-hugepages.mount
223ms dev-mqueue.mount
220ms sys-kernel-debug.mount
218ms sys-kernel-tracing.mount
211ms kmod-static-nodes.service
207ms ufw.service
194ms setvtrgb.service
186ms snap-core20-1026.mount
184ms systemd-tmpfiles-clean.service
166ms systemd-remount-fs.service
159ms snap-core18-1988.mount
159ms openvpn.service
151ms snap-auto\x2dcpufreq-71.mount
148ms virtualbox.service
128ms kerneloops.service
114ms plymouth-read-write.service
96ms snap-bitwarden-51.mount
95ms console-setup.service
92ms vboxweb-service.service
69ms snap-canonical\x2dlivepatch-99.mount
69ms boot-efi.mount
27ms vboxautostart-service.service
26ms vboxballoonctrl-service.service
26ms rtkit-daemon.service
20ms [email protected]
14ms dev-loop25.device
12ms alsa-restore.service
12ms sys-kernel-config.mount
11ms sys-fs-fuse-connections.mount
10ms systemd-update-utmp-runlevel.service
7ms dev-loop26.device
2ms snapd.socket
即使重新安装操作系统，问题仍然存在......
有人可以帮我吗？如何改善 Ubuntu 20.04 的启动时间？
我的笔记本电脑：HP 250 G7 笔记本电脑 处理器：Intel® Core™ i3-7020U CPU @ 2.30GHz × 4 显卡：Mesa Intel® HD Graphics 620 (KBL GT2)
答案1
根据您的 RAM、CPU，您可能需要更改发行版。Xubuntu 或 Lubuntu 是最轻的。Xubuntu 需要 500MB RAM，但建议 2GB（阅读此处)。Ubuntu GNOME 的所有应用程序仍可在 Xubuntu 上运行。禁用 Snap 也有帮助，但帮助不大——这是我从您的 systemd-analyze 结果中看到的情况。