📖 ~1 min read
Table of contents
Symptom & Impact
Upgrade planning is delayed because Leapp flags inhibitors that prevent safe progression.
Environment & Reproduction
Before major lifecycle transitions, especially where deprecated packages or custom kernel modules exist.
Root Cause Analysis
Unsupported repositories, third-party packages, old auth/network settings, or unresolved configuration deprecations.
Quick Triage
Run `dnf update -y`, verify subscription channels, and inspect current package origin inventory.
Step-by-Step Diagnosis
Use `leapp preupgrade`, review `/var/log/leapp/leapp-report.txt`, and query blockers with `grep -i inhibitor`.
Solution – Primary Fix
Leapp report contains no inhibitors and only accepted risk advisories remain for planning.
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Solution – Alternative Approaches
Address each inhibitor sequentially, remove unsupported content, and rerun preupgrade until report is clean.
Verification & Acceptance Criteria
Re-run `leapp preupgrade` and archive report artifacts for CAB/change evidence.
Rollback Plan
If remediation affects production runtime, revert package/config changes and reschedule upgrade preparation.
Prevention & Hardening
Keep package sources supported and perform periodic readiness checks before lifecycle deadlines.
Related Errors & Cross-Refs
`dnf -y update && leapp preupgrade && grep -i ‘inhibitor’ /var/log/leapp/leapp-report.txt || true`
Related tutorial: View the step-by-step tutorial for rhel-8.
View all rhel-8 tutorials on the Tutorials Hub →
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
Red Hat Leapp documentation and upgrade planning KBs for RHEL 8 environment readiness.
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