我已经尝试了以下操作，并且我是 ubuntu 新手，所以担心对固件或启动顺序进行一些更改可能会出现问题，请帮助我。
$ systemd-analyze
Startup finished in 3.752s (firmware) + 4.733s (loader) + 37.788s (kernel) + 1min 27.819s (userspace) = 2min 14.094s
graphical.target reached after 1min 25.853s in userspace
systemd-analyze 责备
$ systemd-analyze blame
26.570s dev-mapper-ubuntu\x2d\x2dvg\x2droot.device
23.755s systemd-journal-flush.服务
16.831s teamviewerd.service
15.501s NetworkManager-等待在线.服务
14.206s dev-loop33.device
14.160s dev-loop34.device
14.043s dev-loop30.device
14.013s dev-loop31.device
13.862s dev-loop27.device
13.759s dev-loop26.device
13.757s dev-loop29.device
13.270s dev-loop28.device
13.149s networkd-dispatcher.service
12.880s dev-loop24.device
12.876s dev-loop32.device
12.753s dev-loop25.device
12.504s dev-loop22.device
12.455s snapd.服务
12.439s dev-loop21.device
12.308s dev-loop23.device
12.197s dev-loop20.device
11.757s udisks2.service
10.796s dev-loop18.device
10.750s dev-loop19.device
10.524s dev-loop16.device
10.103s dev-loop17.device
10.086s 调制解调器管理器.服务
9.614s dev-loop15.device
9.418s dev-loop14.device
9.196s dev-loop13.device
8.938s dev-loop12.device
8.744s 账户守护进程.服务
8.738s 网络管理器.服务
8.324s dev-loop7.device
8.251s dev-loop11.设备
8.145s dev-loop9.device
7.849s dev-loop10.device
7.010s dev-loop8.device
6.960s apport.服务
6.803s dev-loop5.device
6.209s gpu-manager.service
5.929s dev-loop6.device
5.867s dev-loop2.device
5.866s dev-loop4.device
5.660s dev-loop3.device
5.591s 螺栓服务
5.515s apparmor.service
5.339s 语音调度服务
5.322s 网络.服务
5.262s 蓝牙.服务
5.212s systemd-udevd.service
5.125s avahi-守护进程.服务
5.124s thermald.service
5.054s rsyslog.服务
4.583s dev-loop1.device
4.306s snap-canonical\x2dlivepatch-81.mount
4.248s wpa_supplicant.service
4.246s dev-loop0.device
3.938s snap-gnome\x2d3\x2d26\x2d1604-86.mount
3.880s snap-gnome\x2dcalculator-352.mount
3.762s snap-docker-372.mount
3.724s systemd-logind.service
3.665s snap-gnome\x2dcharacters-288.mount
3.599s snap-docker-381.mount
3.518s snap-gnome\x2dlogs-45.mount
3.380s polkit.service
2.873s snap-krita-44.mount
2.812s snap-gnome\x2d3\x2d28\x2d1804-59.mount
2.660s upower.service
2.625s snap-obs\x2dstudio-519.mount
2.624s systemd-rfkill.service
2.602s lvm2-pvscan@8:3.service
2.585s snap-canonical\x2dlivepatch-77.mount
2.553s snap-gtk\x2dcommon\x2dthemes-1198.mount
2.505s snap-docker-384.mount
2.447s snap-highlighterpdf-5.mount
2.363s snap-gnome\x2dlogs-57.mount
2.305s snap-gnome\x2dcalculator-260.mount
2.302s lvm2-monitor.service
2.194s systemd-tmpfiles-setup-dev.service
2.158s snap-microk8s-652.mount
2.102s snap-krita-48.mount
2.094s grub-common.service
2.075s snap-core-6818.mount
2.054s snap-gnome\x2d3\x2d26\x2d1604-88.mount
2.011s 软件包套件.service
1.751s fwupd.服务
1.742s 键盘设置服务
1.731s snap-gtk\x2dcommon\x2dthemes-1122.mount
1.705s snap-gnome\x2dcharacters-284.mount
1.680s snap-microk8s-608.mount
1.514s snap-gnome\x2dsystem\x2dmonitor-87.mount
1.479s snap-core-6673.mount
1.464s binfmt-support.service
1.342s systemd-sysctl.service
1.225s lightdm.service
1.222s plymouth-退出-等待.服务
1.162s colord.service
955ms snap-core-6964.mount
936ms systemd-timesyncd.服务
875ms 启动.挂载
867ms systemd-tmpfiles-setup.service
830ms snap-obs\x2dstudio-525.mount
819ms systemd-remount-fs.service
786ms snap-core18-970.mount
735ms dev-mqueue.mount
721ms 系统内核调试.mount
720ms dev-hugepages.mount
718ms systemd-journald.service
713ms systemd-fsck@dev-disk-by\x2duuid-F7B0\x2d0B8F.service
696ms snap-gnome\x2d3\x2d28\x2d1804-55.mount
690ms plymouth-read-write.service
651ms proc-sys-fs-binfmt_misc.mount
643ms rtkit-daemon.service
642ms systemd-tmpfiles-clean.service
629ms resolvconf.服务
579ms snap-gnome\x2dsystem\x2dmonitor-91.mount
551ms snap-core18-941.mount
519ms systemd-udev-trigger.service
517ms pppd-dns.服务
504ms kmod-静态节点.service
500ms systemd-resolved.service
488ms plymouth-start.service
457ms systemd-backlight@backlight:intel_backlight.service
428ms 控制台设置服务
399ms dns-clean.service
392ms 启动-efi.mount
319ms alsa-恢复.服务
314ms snap-gnome\x2dcalculator-406.mount
272ms snap-gtk\x2dcommon\x2dthemes-818.mount
269ms snap-gnome\x2dlogs-61.mount
267ms snap-core18-782.mount
233ms systemd-random-seed.service
232ms setvtrgb.服务
228ms kerneloops.service
224ms hddtemp.service
204ms snapd.seed.service
202ms blk-availability.service
188ms systemd-fsck@dev-disk-by\x2duuid-e2648b12\x2df71d\x2d461a\x2dac
179ms ufw.服务
155ms systemd-用户会话.服务
153ms systemd-update-utmp.service
114ms dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.swap
112ms systemd-update-utmp-runlevel.service
92毫秒[电子邮件保护]
54ms snapd.socket
41ms resolvconf-pull-resolved.service
20ms ureadahead-stop.service
8ms 系统文件系统保险丝连接.mount
6ms 系统内核配置.mount
3ms systemd-modules-load.service
sudo systemd-analyze 关键链
graphic.target @56.382s
└─multi-user.target @56.382秒
└─hddtemp.service @56.353s +28ms
└─network-online.target @56.339s
└─NetworkManager-wait-online.service @48.111s +8.227s
└─NetworkManager.service @41.370s +6.692s
└─dbus.service @40.624s
└─basic.target @40.316秒
└─sockets.target @40.316s
└─snapd.socket @40.313秒+2毫秒
└─sysinit.target @40.268s
└─apparmor.service @39.016秒+1.251秒
└─local-fs.target @39.015s
└─run-snapd-ns-canonical\x2dlivepatch.mnt.mount @51.091s
└─run-snapd-ns.mount @49.006s
└─swap.target @39.435秒
└─dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.swap @39.009s +425ms
└─dev-mapper-ubuntu\x2d\x2dvg\x2dswap_1.device @39.008s
~
答案1
看起来 TeamViewer 占用了您大量的启动时间。我建议禁用它在启动时启动或直接使用sudo apt remove它的功能。Snap 会大大降低系统性能，如果您不使用 Snap，我建议将其删除（虽然如果您运行 GNOME，这很危险，但我只建议在您运行 xfce、lde 或 kde 时使用它）
编辑：我和几个技术朋友聊过，你似乎有很多 snap。开始养成安装 .deb 文件或一直使用 .deb 的习惯，而apt不是 snap。Snap 卷加载在 dev-loop 文件中，你有很多这样的文件，这会占用很多时间。尝试删除一些 snap，改用 repos 或 .deb