I update my ubuntu recenly to 20.04. now it takes a long time to boot. I have I5 CPU and 8G RAM.
Here the cmd systemd-analyze blame output:
1min 30.094s nmbd.service
47.725s plymouth-quit-wait.service
22.834s udisks2.service
22.771s networkd-dispatcher.service
19.079s snapd.service
16.775s dev-sda6.device
16.618s accounts-daemon.service
15.567s NetworkManager-wait-online.service
11.738s polkit.service
11.591s avahi-daemon.service
11.590s bluetooth.service
11.498s NetworkManager.service
10.792s switcheroo-control.service
10.786s thermald.service
10.782s systemd-logind.service
10.780s wpa_supplicant.service
9.671s ModemManager.service
7.797s dev-loop0.device
7.371s dev-loop1.device
6.890s dev-loop2.device
6.884s fwupd.service
6.669s dev-loop4.device
5.474s systemd-journal-flush.service
5.311s dev-loop3.device
5.240s bolt.service
4.621s systemd-resolved.service
4.481s ufw.service
3.997s rsyslog.service
3.761s apport.service
3.673s gpu-manager.service
3.362s systemd-udevd.service
3.018s grub-common.service
2.985s e2scrub_reap.service
2.829s systemd-tmpfiles-setup.service
2.615s gdm.service
2.605s grub-initrd-fallback.service
2.412s networking.service
2.334s apparmor.service
1.970s secureboot-db.service
1.919s lm-sensors.service
1.549s snapd.seeded.service
1.427s virtualbox.service
1.419s dictd.service
1.388s systemd-sysusers.service
1.360s keyboard-setup.service
1.333s systemd-modules-load.service
1.328s systemd-fsck@dev-disk-by\x2duuid-CEF1\x2d926B.service
1.314s colord.service
1.221s ccpd.service
1.004s systemd-tmpfiles-setup-dev.service
997ms systemd-random-seed.service
888ms systemd-sysctl.service
794ms [email protected]
789ms smbd.service
770ms snapd.apparmor.service
755ms binfmt-support.service
646ms upower.service
639ms systemd-backlight@backlight:intel_backlight.service
633ms systemd-rfkill.service
580ms winbind.service
542ms snap-core18-1932.mount
516ms pppd-dns.service
412ms systemd-udev-trigger.service
407ms systemd-timedated.service
384ms snap-snap\x2dstore-481.mount
351ms kerneloops.service
335ms ifupdown-pre.service
275ms systemd-timesyncd.service
274ms rc-local.service
231ms kmod-static-nodes.service
218ms console-setup.service
217ms [email protected]
213ms snap-gnome\x2d3\x2d34\x2d1804-60.mount
200ms snap-gtk\x2dcommon\x2dthemes-1506.mount
200ms systemd-remount-fs.service
200ms systemd-journald.service
195ms openvpn.service
182ms dev-hugepages.mount
182ms dev-mqueue.mount
180ms sys-kernel-debug.mount
180ms sys-kernel-tracing.mount
156ms dev-disk-by\x2duuid-0dddf165\x2d43ec\x2d452e\x2d9e15\x2da64e2699cdfa.swap
153ms snap-snapd-9721.mount
141ms proc-sys-fs-binfmt_misc.mount
139ms plymouth-start.service
133ms systemd-user-sessions.service
126ms setvtrgb.service
117ms dns-clean.service
116ms systemd-update-utmp.service
110ms boot-efi.mount
106ms rtkit-daemon.service
69ms hddtemp.service
67ms systemd-tmpfiles-clean.service
55ms plymouth-read-write.service
49ms [email protected]
45ms resolvconf-pull-resolved.service
41ms systemd-update-utmp-runlevel.service
16ms alsa-restore.service
4ms sys-fs-fuse-connections.mount
3ms sys-kernel-config.mount
1ms snapd.socket
and systemd-analyze critical-chain output
graphical.target @2min 25.659s
└─multi-user.target @2min 25.658s
└─smbd.service @2min 24.867s +789ms
└─winbind.service @2min 24.280s +580ms
└─network.target @38.518s
└─NetworkManager.service @27.019s +11.498s
└─dbus.service @27.013s
└─basic.target @26.670s
└─sockets.target @26.670s
└─snapd.socket @26.668s +1ms
└─sysinit.target @26.291s
└─systemd-timesyncd.service @26.015s +275ms
└─systemd-tmpfiles-setup.service @23.107s +2.829s
└─local-fs.target @22.985s
└─boot-efi.mount @22.875s +110ms
└─systemd-fsck@dev-disk-by\x2duuid-CEF1\x2d926B.service @21.528s +1.328s
└─dev-disk-by\x2duuid-CEF1\x2d926B.device @21.526s
Here systemd-analyze plot result.
Is there a solution to this problem?