IBM AIX 7.3 – Common Problem 244 – Diagnosis and Fix

📖 ~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

Non-root admins get ‘Operation not permitted’ even after being assigned a role.

Environment & Reproduction

Happens after enabling Enhanced RBAC without running setkst or with stale role definitions.

Root Cause Analysis

The kernel security tables (KST) are out of sync with the role database.

Quick Triage

Run lsrole -a, lsuser -a roles username, and rolelist -u username.

Step-by-Step Diagnosis

Check authorizations with lsauth and ensure setsecattr was applied.

Solution – Primary Fix

Refresh KST with setkst and re-run swrole rolename to validate the change.

Solution – Alternative Approaches

Rebuild a custom role with mkrole then chuser roles=ROLE user.

Verification & Acceptance Criteria

The user runs privileged commands successfully and audit logs show expected authorizations.

Rollback Plan

Remove the role with chuser roles= user and disable RBAC enforcement temporarily.

Prevention & Hardening

Always run setkst after role/authorization changes and audit with lssecattr.

Related Errors & Cross-Refs

Often paired with sudo replacement and audit trail discussions.

Related tutorial: View the step-by-step tutorial for aix-7.3.

View all aix-7.3 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

IBM AIX 7.3 RBAC administrator guide – setkst and rolelist.