Slow boot after installing 20.04

[mlempenau]

I found a recent post about troubleshooting bootup. It was very informative. I updated grub with
GRUB_CMDLINE_LINUX_DEFAULT="" and it helped me see things I can work on in the future to
make my computer boot faster.
Right now the problem I have is that after the screen stops showing me all the command line
info during boot, it goes blank and it stays blank for over a minute. How do I troubleshoot this? I have
also noticed that once booted up and logged in ... when I try to do different things it takes
longer than it should. Like it has to wait for something to time out. Thanks in advance for helping!
I also found an old post (ubuntu 12) that mentioned a boot log. I was never able to find that. What log
is the most informative for boot?

[mlempenau]

Additional info: Normal boot: about 1:15 minute
Blank screen: 30 seconds
Blank screen with cursor: 30 seconds
Logon screen

[daniewicz]

Run the following from a terminal:

systemd-analyze blame

[mlempenau]

Thanks for the suggestion. It seemed to be what I need. I ran it right after I had booted up. It shows where something is looping about 29 times (dev-loop29.device). I did not see anything else that was out of place. What is this?

mlempenau@mlempenau20:~$ systemd-analyze blame

20.125s dev-sda2.device

13.972s udisks2.service

12.860s systemd-journal-flush.service

12.554s NetworkManager-wait-online.service

12.217s dev-loop23.device

12.207s snapd.service

11.687s dev-loop14.device

11.331s dev-loop22.device

11.213s nmbd.service

10.999s dev-loop1.device

10.851s accounts-daemon.service

10.258s dev-loop9.device

10.257s dev-loop10.device

10.253s dev-loop29.device

10.252s dev-loop27.device

10.252s dev-loop28.device

10.252s dev-loop26.device

9.434s dev-loop30.device

9.391s dev-loop31.device

9.347s polkit.service

9.159s dev-loop24.device

9.064s dev-loop20.device

8.965s dev-loop12.device

8.956s dev-loop17.device

8.930s dev-loop19.device

8.919s dev-loop25.device

8.888s dev-loop18.device

8.693s avahi-daemon.service

8.678s dev-loop11.device

8.646s NetworkManager.service

8.596s dev-loop21.device

8.574s dev-loop7.device

8.505s networkd-dispatcher.service

8.274s dev-loop15.device

8.257s dev-loop8.device

8.135s dev-loop16.device

8.026s dev-loop13.device

7.789s dev-loop6.device

7.690s dev-loop4.device

7.539s switcheroo-control.service

7.532s thermald.service

7.528s systemd-logind.service

7.509s wpa_supplicant.service

7.326s dev-loop3.device

7.214s dev-loop0.device

6.890s dev-loop2.device

6.769s dev-loop5.device

5.803s apport-autoreport.service

5.619s fwupd.service

5.237s user@1000.service

5.044s ModemManager.service

4.771s systemd-udevd.service

4.768s smbd.service

4.452s apparmor.service

4.243s dnsmasq.service

3.836s snap-audacity-666.mount

3.803s snap-audacity-675.mount

3.735s snap-canonical\x2dlivepatch-94.mount

3.526s teamviewerd.service

3.494s snap-canonical\x2dlivepatch-95.mount

3.240s snap-chromium-1193.mount

3.199s snap-chromium-1213.mount

3.168s smartmontools.service

3.034s rsyslog.service

2.920s snapd.apparmor.service

2.836s snap-core-9289.mount

2.823s snap-core-9436.mount

2.680s snap-core18-1705.mount

2.598s snap-core18-1754.mount

2.462s secureboot-db.service

2.415s snap-gimp-273.mount

2.360s systemd-resolved.service

2.320s snap-gimp-281.mount

2.294s systemd-tmpfiles-setup.service

2.183s snap-gnome\x2d3\x2d26\x2d1604-100.mount

2.175s apport.service

2.128s snap-gnome\x2d3\x2d26\x2d1604-98.mount

2.095s grub-common.service

2.074s lm-sensors.service

1.993s snap-gnome\x2d3\x2d28\x2d1804-116.mount

1.830s snap-gnome\x2d3\x2d28\x2d1804-128.mount

1.659s snap-gnome\x2d3\x2d34\x2d1804-33.mount

1.620s snap-gnome\x2d3\x2d34\x2d1804-36.mount

1.501s snap-gnome\x2dsystem\x2dmonitor-145.mount

1.473s gdm.service

1.431s snap-gnome\x2dsystem\x2dmonitor-148.mount

1.367s grub-initrd-fallback.service

1.284s snap-gtk2\x2dcommon\x2dthemes-13.mount

1.247s snap-gtk2\x2dcommon\x2dthemes-9.mount

1.232s systemd-modules-load.service

1.200s gpu-manager.service

1.142s snap-gtk\x2dcommon\x2dthemes-1502.mount

1.112s rpcbind.service

1.106s e2scrub_reap.service

1.092s keyboard-setup.service

1.044s networking.service

998ms snap-gtk\x2dcommon\x2dthemes-1506.mount

992ms colord.service

978ms snap-handbrake\x2djz-133.mount

964ms snap-handbrake\x2djz-134.mount

957ms upower.service

918ms systemd-tmpfiles-setup-dev.service

894ms snap-network\x2dmanager-514.mount

860ms dns-clean.service

856ms systemd-sysusers.service

845ms snap-network\x2dmanager-554.mount

802ms snap-skype-134.mount

796ms systemd-sysctl.service

731ms packagekit.service

704ms snap-skype-137.mount

661ms systemd-journald.service

639ms user@120.service

636ms pppd-dns.service

607ms systemd-udev-trigger.service

606ms systemd-timesyncd.service

582ms systemd-random-seed.service

561ms binfmt-support.service

501ms run-rpc_pipefs.mount

431ms modprobe@drm.service

428ms openvpn.service

428ms snapd.seeded.service

411ms systemd-fsck@dev-disk-by\x2duuid-9ACC\x2d6D4D.service

341ms setvtrgb.service

290ms swapfile.swap

288ms kerneloops.service

229ms ifupdown-pre.service

217ms systemd-remount-fs.service

208ms ufw.service

194ms systemd-update-utmp.service

185ms snap-snap\x2dstore-415.mount

185ms ippusbxd@003:006.service

175ms plymouth-read-write.service

147ms rtkit-daemon.service

145ms kmod-static-nodes.service

143ms console-setup.service

132ms dev-hugepages.mount

131ms dev-mqueue.mount

128ms sys-kernel-debug.mount

128ms systemd-user-sessions.service

128ms sys-kernel-tracing.mount

127ms boot-efi.mount

123ms nfs-config.service

105ms snap-snap\x2dstore-467.mount

104ms snap.network-manager.networkmanager.service

78ms user-runtime-dir@1000.service

32ms proc-sys-fs-binfmt_misc.mount

25ms alsa-restore.service

24ms user-runtime-dir@120.service

14ms systemd-update-utmp-runlevel.service

5ms sys-fs-fuse-connections.mount

4ms plymouth-quit-wait.service

4ms sys-kernel-config.mount

3ms snapd.socket

lines 131-153/153 (END)