[Bug 2084341] [NEW] GRUB2 fails to launch Windows 10 in dual boot setup

[Andrew Tribick]

Public bug reported:

After upgrading to Kubuntu 24.10, or after a fresh install of Kubuntu
24.10 (including after a fresh install of Windows 10), GRUB2 is no
longer able to launch the Windows 10 entry, failing with "error: cannot
load image".

To reproduce:

Install Windows 10 with Secure Boot enabled (or get a machine with an existing Windows 10 installation)
Install Kubuntu 24.10
Reboot
Select the Windows option in the GRUB2 boot loader.

Expected behaviour:

Windows 10 is launched successfully.

Actual behaviour

Get a message "Error: cannot load image", then a message saying "Press
any key to continue". At this point GRUB2 is in some kind of corrupted
state and can't launch ANY of the items successfully, necessitating a
restart of the machine.

ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: grub2-common 2.12-5ubuntu5
ProcVersionSignature: Ubuntu 6.11.0-8.8-generic 6.11.0
Uname: Linux 6.11.0-8-generic x86_64
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Oct 12 16:19:42 2024
InstallationDate: Installed on 2024-10-12 (0 days ago)
InstallationMedia: Kubuntu 24.10 "Oracular Oriole" - Release amd64 (20241007.6)
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oracular wayland-session

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https://bugs.launchpad.net/bugs/2084341

Title:
  GRUB2 fails to launch Windows 10 in dual boot setup

Status in grub2 package in Ubuntu:
  New

Bug description:
  After upgrading to Kubuntu 24.10, or after a fresh install of Kubuntu
  24.10 (including after a fresh install of Windows 10), GRUB2 is no
  longer able to launch the Windows 10 entry, failing with "error:
  cannot load image".

  To reproduce:

  Install Windows 10 with Secure Boot enabled (or get a machine with an existing Windows 10 installation)
  Install Kubuntu 24.10
  Reboot
  Select the Windows option in the GRUB2 boot loader.

  Expected behaviour:

  Windows 10 is launched successfully.

  Actual behaviour

  Get a message "Error: cannot load image", then a message saying "Press
  any key to continue". At this point GRUB2 is in some kind of corrupted
  state and can't launch ANY of the items successfully, necessitating a
  restart of the machine.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.10
  Package: grub2-common 2.12-5ubuntu5
  ProcVersionSignature: Ubuntu 6.11.0-8.8-generic 6.11.0
  Uname: Linux 6.11.0-8-generic x86_64
  ApportVersion: 2.30.0-0ubuntu4
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Sat Oct 12 16:19:42 2024
  InstallationDate: Installed on 2024-10-12 (0 days ago)
  InstallationMedia: Kubuntu 24.10 "Oracular Oriole" - Release amd64 (20241007.6)
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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