🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026
Affected versions: RHEL 10.0

📖 ~1 min read

Table of contents
  1. Problem Summary
  2. Symptoms
  3. Diagnostics
  4. Root Cause
  5. Primary Fix
  6. Verification
  7. Prevention
  8. Rollback
  9. Automation
  10. Command Reference
  11. Escalation
  12. Related Notes

Problem Summary

A third-party module no longer loads after kernel upgrade.

Symptoms

modprobe fails with module not found for current kernel.

Diagnostics

Check uname -r and /lib/modules/$(uname -r) contents.

Root Cause

DKMS or kmod package was not rebuilt for new kernel ABI.

Primary Fix

Reinstall matching kmod or run dkms autoinstall, then dracut -f.

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Illustrative mockup for rhel-10 — rhel10-b02-p31-1
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Verification

Load module with modprobe and verify in lsmod.

Illustrative mockup for rhel-10 — rhel10-b02-p31-2
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Prevention

Gate kernel rollout until module build pipelines pass.

Automate patch management and compliance across your fleet with our DevOps services.

Rollback

Boot previous kernel from grub menu if service impact is critical.

Automation

Trigger DKMS rebuild hooks post-dnf transaction.

Command Reference

dnf history info; dkms status; dracut -f

Escalation

Provide kernel, kmod, and hardware vendor package versions.

Secure Boot may block unsigned modules unless enrolled.

Related tutorial: View the step-by-step tutorial for rhel-10.

View all rhel-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

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