Public bug reported:

Hello,

After today’s kernel upgrade to linux-image-6.14.0-33-generic, my system is no 
longer able to boot.
The same hardware boots fine with previous kernels (6.14.0-32-generic and 
6.14.0-29-generic).

Environment

Ubuntu version: Ubuntu 24.04 LTS (Noble Numbat)

Kernel affected: 6.14.0-33-generic (6.14.0-32 works fine)

Architecture: amd64

Installation type: Standard desktop (USB installer originally)

Machine: Asus ROG Strix G614J (laptop)

CPU: Intel (Raptor Lake)

GPU: Intel + NVIDIA hybrid graphics

Disk: NVMe SSD (main system drive)

Steps to reproduce

Update the system (apt upgrade or unattended-upgrades).

New kernel 6.14.0-33-generic is installed (confirmed in
/var/log/dpkg.log at 2025-10-02 09:13).

Reboot system and let GRUB boot with the new kernel (default).

System fails during early kernel initialization.

Expected result

System should boot normally and detect the NVMe SSD as with
6.14.0-32-generic.

Actual result

With 6.14.0-33-generic, the system fails to detect the NVMe drive.

Root partition cannot be mounted.

Boot process halts very early, only fans spin.

No graphical login, no TTY available, system is unresponsive.

A manual reboot is required.

Workaround

Booting via GRUB → Advanced options → selecting 6.14.0-32-generic works
normally.

Kernel 6.14.0-29-generic also boots fine.

The issue is specific to 6.14.0-33-generic.

Additional information

/var/log/dpkg.log confirms installation of linux-image-6.14.0-33-generic
at 2025-10-02 09:13.

No manual kernel installation was done.

Problem appeared immediately after unattended upgrade.

Other users reported issues with this kernel (NVIDIA module install
failures, regressions with peripherals).

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


** Tags: boot-failure kernel linux-image-6.14.0-33-generic nvme ubuntu-24.04

** Attachment added: "photos of the screen that show the boot failure"
   
https://bugs.launchpad.net/bugs/2126674/+attachment/5914238/+files/screenshots.zip

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https://bugs.launchpad.net/bugs/2126674

Title:
  Kernel 6.14.0-33-generic fails to boot on Ubuntu 24.04 (NVMe device
  not detected, 6.14.0-32 works)

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