Missing dbgsym package for linux-image-6.14.0-32-generic on Ubuntu 24.04

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1

I’m using Ubuntu 24.04 LTS with kernel version 6.14.0-32-generic. After experiencing a critical system crash, I attempted to analyze the resulting vmcore file using the crash utility. However, the required debug symbols package linux-image-6.14.0-32-generic-dbgsym is not available in the ddebs.ubuntu.com repository.

Steps to reproduce:

Add the ddebs.ubuntu.com repository and import the GPG key C8CAB6595FDFF622.

Run sudo apt update.

Attempt to install the package with: sudo apt install linux-image-6.14.0-32-generic-dbgsym

Observe the error: E: Unable to locate package linux-image-6.14.0-32-generic-dbgsym

Expected behavior: The debug symbols package should be available for this kernel version to enable proper crash dump analysis with crash.

Actual behavior: The package is missing, making it impossible to inspect vmcore files and diagnose the cause of the crash.

Environment:

OS: Ubuntu 24.04 LTS

Kernel: 6.14.0-32-generic

Architecture: x86_64

Suggested fix: Please publish the missing -dbgsym package for this kernel version in the ddebs.ubuntu.com repository so that crash analysis tools can function properly.

2

This reads like a bug report. If you’re trying to file a bug report, please type ubuntu-bug linux from the command line.

3

I hit the same roadblock trying to debug a panic on 6.14.0-32-generic — looks like the -dbgsym packages haven’t been published for that build yet.

In the meantime you can:

  • run apt search linux-image-*-dbgsym to confirm which kernel versions actually have symbols,
  • check /var/crash and journalctl -k for clues,
  • or temporarily install a kernel that does have matching debug symbols (e.g. the GA or HWE build listed on ddebs).

Hopefully Canonical will push the missing -dbgsym soon — I’ll +1 your request since crash-dump analysis is pretty much blocked without it.

4

Bug #2126643 reported by Gustavo Girardelli a moment ago

Thanks a lot for the info Eeickmeyer, I didn’t know that.

5

See: https://wiki.debian.org/AutomaticDebugPackages
https://wiki.debian.org/DebugPackage

6

Since this is a bug report that has now been filed, please keep all discussion about this bug on the bug report so the discussion isn’t split.

Discourse is not a bug tracker, and things only get fixed with bug reports.

Thank you.

7

Well …

https://documentation.ubuntu.com/server/explanation/debugging/about-debuginfod/index.html

One of the main advantages to debuginfod is that 
debugging information can be retrieved on-demand 
for packages shipped with Ubuntu without the need 
to manually install the debug symbol packages.
8

Okay, Eeickmeyer. What report do you need?

9

You already did the bug report. As a moderator, I’m just making sure discussion takes place there.

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Title: Missing dbgsym package for linux-image-6.14.0-32-generic on Ubuntu 24.04

Description:

I’m currently using Ubuntu 24.04 LTS with kernel version 6.14.0-32-generic. After experiencing a system crash, I attempted to analyze the resulting vmcore using the crash utility. However, the required debug symbols are missing.

Specifically, the package linux-image-6.14.0-32-generic-dbgsym is not available in the official debug symbol repository (ddebs.ubuntu.com). I have verified that:

  • The GPG key C8CAB6595FDFF622 is correctly installed.
  • The repository is accessible and correctly configured.
  • The file /usr/lib/debug/lib/modules/6.14.0-32-generic/vmlinux does not exist.
  • Attempting to install the package via apt fails with “Unable to locate package”.

This prevents forensic analysis of the crash and is a serious limitation for debugging and system reliability assessments.

Expected behavior: The package linux-image-6.14.0-32-generic-dbgsym should be published and available for download via ddebs.ubuntu.com.

Actual behavior: The package is missing, and the crash utility cannot proceed without the vmlinux file with debug symbols.

Steps to reproduce:

  1. Install Ubuntu 24.04 LTS with kernel 6.14.0-32-generic.
  2. Configure ddebs.ubuntu.com and import the GPG key.
  3. Attempt to install linux-image-6.14.0-32-generic-dbgsym.
  4. Observe that the package is not found.

Suggested fix: Please publish the missing -dbgsym package for kernel 6.14.0-32-generic to enable proper crash analysis.

11

“While debuginfod is a helpful alternative for GDB and other tools, it does not provide the full vmlinux file required by crash. Therefore, the absence of the -dbgsym package still blocks kernel crash analysis.”

12

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