[Bug 1983754] Re: Grub takes over 2 minutes to load kernel

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Bug reporting is mostly about finding & fixing problems thus preventing
future users from hitting the same bug.

I suspect a Support site would be more appropriate, eg.
https://answers.launchpad.net/ubuntu. You can also find help with your
problem in the support forum of your local Ubuntu community
http://loco.ubuntu.com/ or asking at https://askubuntu.com or
https://ubuntuforums.org, or for more support options please look at
https://discourse.ubuntu.com/t/community-support/709


Kubuntu & Lubuntu are both flavors, meaning they're built on the same Ubuntu base. If you didn't experience this with Lubuntu 20.04, but do with Kubuntu 20.04 where the base system is identical, I'd look for changes in the hardware. Especially if your system is using consumer grade components (with long warranties), they tend to retry many times rather than give errors resulting in warranty claims as only enterprise gear (with shorter warranties) have the higher performance warranties. Have you checked your drive health? (https://help.ubuntu.com/community/Smartmontools).  You're using the HWE kernel stack with Kubuntu, which stack were you using with Lubuntu?  was it GA or HWE? as both being flavors of Ubuntu, the ISO used to install dictates the default stack and thus switching your current Kubuntu 20.04 LTS from current HWE to GA (that possibly you used with Lubuntu) is an easy workaround.  (fyi: your installation media was 20.04.4 thus HWE is default; what media did you install Lubuntu with? was it GA? (20.04 & 20.04.1) or HWE? (20.04.2 or later). Your system has already upgraded to 20.04.5 (5.15) kernel so did the issue occur with that updated kernel? does it occur if you select the installed 5.13 kernel? Support may help with some of these.

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https://bugs.launchpad.net/bugs/1983754

Title:
  Grub takes over 2 minutes to load kernel

Status in grub2 package in Ubuntu:
  New

Bug description:
  Kubuntu 20.04 grub2 is taking 2m12s to load kernel after kernel has
  been selected. Similar to expired #577120.  Didn't seem to have this
  problem on Lubuntu 20.04.  Once kernel does load (after long delay),
  boot seems normal.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: grub-pc 2.04-1ubuntu26.15
  ProcVersionSignature: Ubuntu 5.15.0-43.46~20.04.1-generic 5.15.39
  Uname: Linux 5.15.0-43-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Sat Aug  6 10:41:23 2022
  InstallationDate: Installed on 2022-06-12 (55 days ago)
  InstallationMedia: Kubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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