[Bug 1769309] Re: Ubuntu 18.04 boot extremely slow

[Tonio]

Ubuntu 18.04 also weirdly freezes for about 1 minute when opening the
system configuration menu. That is something that didn't happen in my
previous 17.10 installation and somehow prevents me from setting up a
monitor in my laptop. I wonder if this issue is related, since these are
the only 2 problems I've been experiencing since 18.04.

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https://bugs.launchpad.net/bugs/1769309

Title:
  Ubuntu 18.04 boot extremely slow

Status in plymouth package in Ubuntu:
  Confirmed

Bug description:
  I have upgraded Ubuntu 16.04 (amd64) using Gnome as desktop to Ubuntu
  18.04. Ubuntu 16.04 took just over 20 seconds from the time a
  selection on the Grub boot menu was made until the login screen was
  displayed. On Ubuntu 18.04 it takes about 20 seconds (from Grub menu)
  to display the boot splash screen and in total it takes about 2min
  30sec until the login menu (gdm) is displayed.

  Expected behaviour: 
  I would expect a new LTS release to have a similar boot time than the previous release. At this time I am experiencing boot times slower that those I had a few years ago from a traditional hard drive (which used to be just under 2min)

  Additional information:
  I have recently built two Ubuntu servers (17.10 in expectation of upgrading to 18.04 upon release). I found that the boot process went fairly smooth right until the end where it seems to wait for about a minute for what seems to be a network connection. After that wait period the text login prompt is displayed. So I am guessing that there might be a service start timeout which blocks the process.

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 18.04 LTS
  Release:	18.04
  Codename:	bionic

  $ uname -a
  Linux popeye 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

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