Quick troubleshooting view
The file system is mounted read-only and the scripts fail.
- disk error
- corruption filesystem
- protection
- Read dmesg
- Identify Mount
- Save
- Replace failed disc
- Repair filesystem offline
- Remount after validation
Contextual technician plan
Search for I/O error and filesystem/Val.
MountThe command should complete without an unexpected error and return data consistent with the intended service.
If the result is normal, keep this layer lower in the hypothesis ranking and continue with the next discriminating check.
If the result is abnormal, preserve the output and investigate this layer before making broader changes.
Check current options.
dmesg,UK -100The command should complete without an unexpected error and return data consistent with the intended service.
If the result is normal, keep this layer lower in the hypothesis ranking and continue with the next discriminating check.
If the result is abnormal, preserve the output and investigate this layer before making broader changes.
Keep data before repair.
“Save” should produce an observation that clearly confirms or rules out “protection”.
If the observation is normal, lower “protection” in the ranking and continue with the next distinct check.
If the observation is abnormal, keep the evidence and investigate “protection” first. Related action: Remount after validation.
Repeat the same validation test after the correction and confirm the original symptom is gone. Validate stability before closing the incident.
Before changing configuration, record the current value and a way back.
Scalate immediately if storage shows hardware errors.
The file system is mounted read-only and the scripts fail.
Causes probables
- disk error
- corruption filesystem
- protection
Diagnostic étape par étape
- 1
Read dmesg
Search for I/O error and filesystem/Val.
- 2
Identify Mount
Check current options.
- 3
Save
Keep data before repair.
Commands utiles
Mountdmesg,UK -100Solutions possibles
- Replace failed disc
- Repair filesystem offline
- Remount after validation
Scalate immediately if storage shows hardware errors.