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Can anybody help me improve my boot time?

my specs:

OS: Ubuntu 20.04.2 LTS x86_64

CPU: Intel i7-7700HQ (8) @ 3.800GHz

GPU: Intel HD Graphics 630

GPU: NVIDIA GeForce GTX 1050 Mobile

RAM: 15897MiB

systemd-analyze blame:

45.089s plymouth-quit-wait.service
35.392s snapd.service
20.055s dev-sdb3.device
17.658s systemd-journal-flush.service
16.274s NetworkManager-wait-online.service
11.665s dev-loop23.device
10.702s dev-loop29.device
10.690s dev-loop37.device
10.444s dev-loop34.device
10.184s dev-loop31.device
10.159s dev-loop35.device
9.648s dev-loop28.device
9.611s dev-loop3.device
9.608s dev-loop8.device
9.608s dev-loop12.device
9.607s dev-loop9.device
9.602s dev-loop27.device
9.545s dev-loop33.device
9.483s dev-loop36.device

etc.

If you need any additional information or would like me to run any command to help you help me please do not hesitate to ask.

Thx!

atfortes
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  • Read your output, and then ask yourself: Why is /dev/sdb3 taking 20 seconds to mount? – user535733 May 02 '21 at 19:23
  • @user535733 do you have any idea?

    size: 500 GB — 421 GB free (15,8% full) partition type: Linux Filesystem contents: Ext4 (version 1.0) — Mounted at Filesystem Root

     – atfortes May 02 '21 at 19:44
  • You need to investigate. Start with the logs of your last boot. One common problem is a mistake in /etc/fstab. Lots of possibilities. This is a perfect opportunity to learn how boot works. Most folks install Linux because they want to learn and tinker. – user535733 May 02 '21 at 19:56
  • Look specifically for renamed interfaces and mount failures. Use grep to make searching the logs easier. If you discover something, add it to your question above (DON'T put it in a comment). – user535733 May 02 '21 at 20:09
  • You have too many snaps. Each snap increases boot time. Have you run fsck on your boot drive? Edit your question and show me the Disks app SMART Data & Tests data window. This is a scrollable window, so it may take two screenshots. – heynnema May 02 '21 at 20:12
  • Some more things to check. https://askubuntu.com/questions/1284302/is-it-possible-to-make-ubuntu-20-04-boot-faster – oldfred May 02 '21 at 20:18
  • @heynnema yeah i also noticed that the snaps were taking a lot of boot time, should i reinstall them without using snap? (i have never run that fsck command) Also, the question is updated as you asked – atfortes May 02 '21 at 20:38
  • thanks! @oldfred – atfortes May 02 '21 at 20:44
  • @atfortes Yes, I'd consider changing out the snap apps for regular binary (.deb) apps. Your SMART data looks fine. I put together a quick answer with instructions for how to run fsck for you. – heynnema May 02 '21 at 22:53
  • @atfortes Status please... – heynnema May 05 '21 at 21:33
  • @heynnema I have updated the question. I haven't yet followed your instructions for the fsck command because I didn't have much time, but the dev-sdb3.device task is taking less time to complete regardless. – atfortes May 06 '21 at 13:55
  • @atfortes Do rm -i /var/crash/*.crash, reboot, and redo systemd-analyze blame, and you'll probably be alright. – heynnema May 06 '21 at 14:12

1 Answers1

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fsck

Let's start by checking your file system...

  • boot to a Ubuntu Live DVD/USB in “Try Ubuntu” mode
  • open a terminal window by pressing Ctrl+Alt+T
  • type sudo fdisk -l
  • identify the /dev/sdXX device name for your "Linux Filesystem"
  • type sudo fsck -f /dev/sdXX, replacing sdXX with the number you found earlier
  • repeat the fsck command if there were errors
  • type reboot

SMART

Your SMART Data looks fine. No disk problems.

snaps

You have a lot of snap applications that are increasing your boot time (35.392s snapd.service, and all dev-loopxx devices). See snap list. Consider uninstalling snap apps, and reinstalling the binary (.deb) versions of the same app, if available.

You'll probably have to keep these snaps...

Name                  Version                     Rev    Tracking         Publisher   Notes
core                  16-2.49.2                   10958  latest/stable    canonical✓  core
core18                20210309                    1997   latest/stable    canonical✓  base
gnome-3-28-1804       3.28.0-19-g98f9e67.98f9e67  145    latest/stable    canonical✓  -
gnome-3-34-1804       0+git.3556cb3               66     latest/stable    canonical✓  -
gnome-system-monitor  3.38.0-17-g38c1ce1d62       157    latest/stable/…  canonical✓  -
gtk-common-themes     0.1-52-gb92ac40             1515   latest/stable/…  canonical✓  -
gtk2-common-themes    0.1                         13     latest/stable    canonical✓  -
snap-store            3.38.0-59-g494f078          518    latest/stable    canonical✓  -
snapd                 2.49.2                      11588  latest/stable    canonical✓  snapd
heynnema
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