Public bug reported:

After upgrading Ubuntu 24.04 via apt upgrade on 2026-03-01, the system installed
linux-image-6.17.0-14-generic. The system no longer boots with this kernel.

Boot fails very early with:

Kernel panic - not syncing: VFS: unable to mount root fs on unknown-
block(0,0)

The same system boots normally with kernel 6.14.0-37-generic.


Hardware:
Laptop: HP 14s-fq1xxx
CPU: AMD Ryzen 3 5300U
Storage: SOLIDIGM SSDPFKNU512GZH (NVMe)
Root filesystem: ext4 on /dev/nvme0n1p2
Boot mode: UEFI


What I already verified:
• Root UUID is correct and unchanged.
• NVMe modules are present in initramfs.
• initramfs was rebuilt multiple times using update-initramfs.
• MODULES=most already set.
• NVMe device visible and mounts correctly under 6.14 kernel.
• Bootloader configuration unchanged.
• No disk or filesystem errors.


Evidence that this is kernel specific: 
uname -r (working): 6.14.0-37-generic
6.17 kernel consistently panics before mounting root.

NVMe driver exists in initramfs:
lsinitramfs shows nvme.ko and nvme-core.ko present.


Regression behaviour:
System was fully functional before the upgrade.
Failure began immediately after installing kernel 6.17.0-14.
This appears to be a regression affecting NVMe initialization.


Booting an older kernel (6.14) works reliably.

Please investigate regression in 6.17 NVMe / early PCI initialization.
I can test patches or provide additional logs if needed.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.14.0-37-generic 6.14.0-37.37~24.04.1
ProcVersionSignature: Ubuntu 6.14.0-37.37~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-37-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar  1 19:22:37 2026
InstallationDate: Installed on 2025-03-11 (355 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
MachineType: HP HP Laptop 14s-fq1xxx
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic 
root=UUID=0619d789-a563-450a-8534-58a39165ff1d ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-6.14.0-37-generic N/A
 linux-backports-modules-6.14.0-37-generic  N/A
 linux-firmware                             20240318.git3b128b60-0ubuntu2.25
SourcePackage: linux-hwe-6.14
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/02/2023
dmi.bios.release: 15.31
dmi.bios.vendor: AMI
dmi.bios.version: F.31
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 887C
dmi.board.vendor: HP
dmi.board.version: 59.23
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 59.23
dmi.modalias: 
dmi:bvnAMI:bvrF.31:bd08/02/2023:br15.31:efr59.23:svnHP:pnHPLaptop14s-fq1xxx:pvr:rvnHP:rn887C:rvr59.23:cvnHP:ct10:cvrChassisVersion:sku50M59PA#ACJ:
dmi.product.family: 103C_5335KV HP Notebook
dmi.product.name: HP Laptop 14s-fq1xxx
dmi.product.sku: 50M59PA#ACJ
dmi.sys.vendor: HP

** Affects: linux-hwe-6.14 (Ubuntu)
     Importance: Undecided
         Status: New


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

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https://bugs.launchpad.net/bugs/2142984

Title:
  Kernel 6.17.0-14 fails to boot with "VFS: unable to mount root fs on
  unknown-block(0,0)" on NVMe (Ryzen 5300U)

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