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I'm running Ubuntu 18.04 minimal fresh install with dual boot Windows 10 on a Samsung 850 EVO SSD.

$ systemd-analyze time              
Startup finished in 17.129s (firmware) + 3.573s (loader) + 3.058s (kernel) + 22.988s (userspace) = 46.750s
graphical.target reached after 22.981s in userspace

$ systemd-analyze blame | head -n 10
         20.674s plymouth-quit-wait.service
          5.077s bolt.service
          3.252s NetworkManager-wait-online.service
          1.483s docker.service
           863ms dev-sda4.device
           820ms snap-gnome\x2dlogs-31.mount
           787ms fwupd.service
           742ms systemd-resolved.service
           690ms snap-gnome\x2dsystem\x2dmonitor-39.mount
           546ms dev-loop2.device

Any ideas why boot time takes so long? Even my Windows 10 partition boots up faster.

mormaii2
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    Same problem here. In my case, it seems it was something related with LVM. Fortunately, I was able to find the solution following this tutorial: https://www.hiroom2.com/2018/05/01/ubuntu-1804-lvm-swap-wait-for-root-en/ From more than 40 seconds to boot, now I get less than 20. I would like to thank the autor of the referred article for the fix. – Angelo May 07 '18 at 15:27
  • Thanks for the comment but I'm not using LVM here. – mormaii2 May 07 '18 at 21:28
  • The solution is not about LVM only. It is about specifying the correct swap partition to avoid unecessary delay/timeout. Have you tried also the noresume solution below ? – solsTiCe May 09 '18 at 13:39

1 Answers1

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As answered in this similar question, it may be possible to workaround/resolve this issue by passing the noresume option to the kernel.

To update GRUB so that it passes this option to the kernel automatically on boot:

  1. edit the /etc/default/grub file so that the string noresume is included in the GRUB_CMDLINE_LINUX_DEFAULT variable:

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash noresume"

  2. run this command to update grub: sudo update-grub

  3. reboot the computer

Community
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DrGecko
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  • I have done that but my ubuntu freezes after boot, I can't move my mouse or type anything and none of my auto start programs start – mormaii2 May 10 '18 at 12:34
  • @mormaii2 - that sounds like you might be missing the modules-extra package for the kernel you are trying to boot into. try running dpkg -l | grep modules-extra to ensure that such a package exists for that kernel. if its not there, make sure to install it with apt – DrGecko May 10 '18 at 21:00
  • I do have it installed:

    linux-modules-extra-4.15.0-20-generic
    4.15.0-20.21 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP

     – mormaii2 May 11 '18 at 14:03