DNF Module Stream Conflict During Install

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

dnf install fails with modular dependency conflict messages.

Environment & Reproduction

Run dnf module list –enabled and inspect stream requirements.

Root Cause Analysis

Identify the package group and module stream currently pinned.

Quick Triage

An older enabled stream conflicts with the target package version.

Step-by-Step Diagnosis

Reset conflicting module with dnf module reset .

Solution – Primary Fix

Enable correct stream and reinstall using dnf module enable/install.

Solution – Alternative Approaches

Verify resulting service starts with systemctl after package install.

Verification & Acceptance Criteria

Ensure repos are accessible so module metadata resolves consistently.

Rollback Plan

No special SELinux change expected for module stream operations.

Prevention & Hardening

Check /var/log/dnf.log for exact package and stream resolution order.

Related Errors & Cross-Refs

Pin approved module streams in environment standards and automation.

Related tutorial: View the step-by-step tutorial for rhel-9.

View all rhel-9 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Undo transaction with dnf history and restore previous stream state.