Ubuntu 20.04 启动时间过长

Ubuntu 20.04 启动时间过长

我之前问过这个问题,但答案对我没有用。我甚至重新安装了 ubuntu 20.04,但没有任何变化

systemd-analyze blame输出

40.596s plymouth-quit-wait.service
23.558s snapd.service
22.471s networkd-dispatcher.service
18.067s NetworkManager-wait-online.service
13.555s dev-sda2.device
13.236s apport-autoreport.service
12.648s udisks2.service
10.391s accounts-daemon.service
10.272s ModemManager.service
8.740s dev-loop18.device
8.117s dev-loop25.device
8.088s dev-loop8.device
8.086s dev-loop9.device
8.084s dev-loop13.device
8.084s dev-loop15.device
8.081s dev-loop16.device
8.081s dev-loop22.device
8.079s dev-loop21.device
8.078s dev-loop24.device
8.022s dev-loop6.device
8.018s dev-loop11.device
8.017s dev-loop17.device 8.014s dev-loop19.device
8.012s
dev-loop23.device
7.985s dev-loop27.device
7.927s dev-loop26.device
7.769s polkit.service
7.419s avahi-daemon.service
7.417s bluetooth.service
7.412s NetworkManager.service
7.018s switcheroo-control.service
7.008s thermald.service
7.004s systemd-logind.service
7.003s wpa_supplicant.service
6.031s dev-loop5.device
5.808s dev-loop4.device
5.786s dev-loop3.device
5.661s fwupd.service
5.535s dev-loop20.device
5.401s dev-loop10.device
5.353s dev-loop14.device
5.089s bolt.service
5.032s dev-loop12.device
4.712s systemd-rfkill.service
3.716s dev-loop0.device
3.328s gpu-manager.service
3.317s dev-loop1.device
3.316s grub-common.service
3.316s dev-loop2.device
3.313s dev-loop7.device
3.168s gdm.service
3.056s preload.service
3.046s systemd-resolved.service
2.889s apport.service
2.504s e2scrub_reap.service
2.501 秒 rsyslog.service
1.965 秒 systemd-sysctl.service
1.877 秒 grub-initrd-fallback.service
1.797 秒 apparmor.service
1.521 秒 snap-android\x2dstudio-91.mount
1.498 秒 snapd.apparmor.service
1.463 秒 snap-canonical\x2dlivepatch-95.mount 1.444 秒 snap-core-9804.mount 1.381 秒 snap-core-9993.mount
1.367 秒 snap-core18-1705.mount 1.350 秒 snap-core18-1885.mount 1.349 秒 snap-discord-112.mount 1.308 秒 snap-discord-115.mount 1.307 秒snap-figma\x2dlinux-86.mount 1.278s snap-gimp-292.mount 1.034s pppd-dns.service 991ms snap-gimp-297.mount 968ms systemd-modules-load.service 947ms snap-gnome\x2d3\x2d28\x2d1804-128.mount











903ms snap-gnome\x2d3\x2d34\x2d1804-36.mount
897ms systemd-udev-trigger.service
836ms systemd-tmpfiles-setup.service
821ms snap-gnome\x2d3\x2d34\x2d1804-60.mount
820ms snap-gtk\x2dcommon\x2dthemes-1506.mount
795ms upower.service
776ms snap-inkscape-7921.mount
742ms snap-inkscape-7947​​.mount
734ms swapfile.swap
714ms systemd-sysusers.service
711ms packagekit.service
701ms systemd-udevd.service
674ms keyboard-setup.service
655ms snap-intellij\x2didea\x2dcommunity-249.mount
620ms systemd-journald.service
609ms snap-intellij\x2didea\x2dcommunity-252.mount
582ms openvpn.service
559ms[电子邮件保护]
517ms systemd-random-seed.service
505ms snap-kde\x2dframeworks\x2d5\x2dcore18-32.mount
473ms systemd-timesyncd.service
386ms kerneloops.service
382ms systemd-tmpfiles-setup-dev.service
345ms snap-rambox-13.mount
331ms snap-simplenote-384.mount
318ms snap-snap\x2dstore-433.mount
289ms snap-snap\x2dstore-467.mount
261ms dev-hugepages.mount
260ms dev-mqueue.mount
258ms sys-kernel-debug.mount
257ms sys-kernel-tracing.mount
254ms kmod-static-nodes.service
247ms snapd.seeded.service
245ms snap-snapd-8790.mount
229ms ufw.service
227ms systemd-fsck@dev-disk-by\x2duuid-7D17\x2d84A2.service 201ms systemd-backlight@backlight:intel_backlight.service
201ms snap-snapd-9279.mount
194ms[电子邮件保护]
190ms systemd-user-sessions.service
187ms systemd-journal-flush.service
170ms console-setup.service
140ms colord.service
135ms snap-vlc-1700.mount
132ms systemd-remount-fs.service
129ms boot-efi.mount
126ms setvtrgb.service
119ms systemd-update-utmp.service
113ms plymouth-start.service
113ms snap-youtube\x2ddl-2846.mount
61ms plymouth-read-write.service
51ms[电子邮件保护]
45ms systemd-update-utmp-runlevel.service
39ms alsa-restore.service
11ms rtkit-daemon.service
4ms sys-kernel-config.mount
4ms sys-fs-fuse-connections.mount
1ms snapd.socket

systemd-analyze输出

Startup finished in 4.561s (firmware) + 4.370s (loader) + 3.831s (kernel) + 1min 10.958s (userspace) = 1min 23.722s graphical.target reached after 1min 10.825s in userspace

我知道 dev-loop 是导致 snap 启动缓慢的原因。

因此,如果我删除 snap,这能解决我的问题吗?我还有一些 snap 应用程序(android-studio、Figma、gimp、Inkscape 等)它们会发生什么?

如果有其他可用方法我已做好准备。

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