Cfrgtkky

So I have looked at a lot of suggestions from this website already and tried quite a few of them, but they all differ and I get a feeling these are very specific problems for which I lack the expertise to find which exact case applies to me.

Here is my result for systemd-analyze blame

1min 59.160s plymouth-quit-wait.service

     33.950s apt-daily.service

      7.276s NetworkManager-wait-online.service

      2.292s apt-daily-upgrade.service

       754ms fwupd.service

       397ms dev-sda6.device

       375ms systemd-logind.service

       362ms plymouth-start.service

       230ms NetworkManager.service

       209ms udisks2.service

       169ms networkd-dispatcher.service

       160ms systemd-timesyncd.service

       147ms systemd-resolved.service

       135ms ModemManager.service

       123ms apparmor.service

       104ms accounts-daemon.service

       100ms keyboard-setup.service

        99ms systemd-journal-flush.service

        91ms systemd-udevd.service

        75ms upower.service

        71ms systemd-udev-trigger.service

        69ms plymouth-read-write.service

        62ms systemd-rfkill.service

And this is what I get from systemd-analyze critical-chain:

graphical.target @2min 330ms

└─multi-user.target @2min 330ms

  └─kerneloops.service @8.446s +7ms

    └─network-online.target @8.441s

      └─NetworkManager-wait-online.service @1.164s +7.276s

        └─NetworkManager.service @932ms +230ms

          └─dbus.service @877ms

            └─basic.target @872ms

              └─sockets.target @872ms

                └─uuidd.socket @872ms

                  └─sysinit.target @868ms

                    └─systemd-timesyncd.service @707ms +160ms

                      └─systemd-tmpfiles-setup.service @672ms +31ms

                        └─local-fs.target @671ms

                          └─run-user-122.mount @1.340s

                            └─swap.target @623ms

                              └─dev-disk-byx2duuid-19af8e87x2d864ex2d4148x2d

                                └─dev-disk-byx2duuid-19af8e87x2d864ex2d4148x

These were a few things I noticed were added to most of these questions, so I thought they might help as well.

I run ubuntu 18.04 LTS in a dual boot configuration using GRUB. My grub version is 2.02-2ubuntu8.9.

You can improve your boot time by:

1. 
   

   Move the update check from boot to sometime later by running sudo systemctl edit apt-daily.timer and changing to something like:

   
   
   

   # apt-daily timer configuration override
   
   [Timer]
   
   OnBootSec=15min
   
   OnUnitActiveSec=1d
   
   AccuracySec=1h
   
   RandomizedDelaySec=30min
   
   

   
   
   

   Refer to this answer for more complete explanation.

   
   



2. If you're not using your computer remotely by yourself or someone else you can disable the NetworkManager-wait-online.service which just make sure networking is online and available by running sudo systemctl disable NetworkManager-wait-online.service.

I guess these will cut off roughly 40 seconds of boot time.