Root Filesystem Full Blocks yum and Services

📖 ~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

Disk exhaustion prevents package updates and destabilizes running services.

Environment & Reproduction

yum write errors, failed service restarts, and log rotation issues appear.

Root Cause Analysis

Large caches, stale logs in journalctl storage, or runaway temp files consume space.

Quick Triage

Measure usage on / and /var and identify top directories by size.

Step-by-Step Diagnosis

Run df -h, du -xhd1 /var, journalctl –disk-usage, yum clean packages metadata, and systemctl –failed.

Solution – Primary Fix

Rotate and vacuum journalctl logs, clean yum cache, prune old kernels carefully, and restart affected service units.

Solution – Alternative Approaches

Free space returns above policy threshold and blocked service restarts succeed.

Verification & Acceptance Criteria

Restore removed artifacts from backup if cleanup was too aggressive.

Rollback Plan

Set retention limits for logs and implement storage alerts.

Prevention & Hardening

Schedule periodic cleanup and health checks with systemd timers.

Related Errors & Cross-Refs

Older systems often accumulate many kernels and large persistent journals.

Related tutorial: View the step-by-step tutorial for rhel-7.

View all rhel-7 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Escalate when partition resizing or LVM extension is required.