[Bug 1973432] Re: os-prober skip message is misleading

[Julian Andres Klode]

The message is somewhat accurate though. The grub.cfg hack is the MVP to
not regress existing users on grub updates, but it might not always stay
that way, and it should not be considered, it's preferable to explicitly
configure as the message says.

** Changed in: grub2 (Ubuntu)
       Status: New => Opinion

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Title:
  os-prober skip message is misleading

Status in grub2 package in Ubuntu:
  Opinion

Bug description:
  os-prober appears not toe be executed when the string "osprober" is
  not found in /boot/grub/grub.cfg.

  While I am still on my way to understand what that means and if this
  is probably and error, because the string to search for should be "os-
  prober", one thing is clearly less than ideal:

  The information message tells the use to check the
  "GRUB_DISABLE_OS_PROBER" meaning in grub documentation.

  But the reason why ths steps is skipped in that code line, is because
  a greo command.

  The outout should tell the user so!

  (ubuntu-bug uploaded my slightly modified version that changes the
  behaviour, this description refers to the unmodified version!)

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: grub-common 2.06-2ubuntu7
  ProcVersionSignature: Ubuntu 5.15.0-30.31-generic 5.15.30
  Uname: Linux 5.15.0-30-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Sat May 14 22:08:19 2022
  InstallationDate: Installed on 2020-04-12 (761 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  SourcePackage: grub2
  UpgradeStatus: Upgraded to jammy on 2022-04-28 (15 days ago)
  mtime.conffile..etc.grub.d.30_os-prober: 2022-05-14T22:02:14.161083

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