Querying the Backup Information About the MEF Edge Root Certificate for Cloud-Edge Interconnection

Log in to the MEF Edge device environment as the root user.
Go to the path where run.sh is stored. The default installation directory is /usr/local/mindx.
```
cd Installation_directory/MEFEdge/software/
```

Run the following command to stop MEF Edge:

./run.sh getunusedcert -name=Certificate_name

**Table 1** getunusedcert parameters
Parameter	Description
name	(Mandatory) Name of the certificate to be queried. Currently, the value can only be cloud_root, indicating the root certificate for cloud-edge interconnection.

If the following information is displayed, the query command is successfully executed. Only the path of the backup certificate is displayed.

/usr/local/mindx/MEFEdge/config/edge_main/hub_certs_import/cloud_root.crt.pre
Execute [getunusedcert] command success!

The backup file of the cloud-edge interconnection root certificate is generated only after the NMS is configured repeatedly.
The function of automatically updating the MEF Edge root certificate for cloud-edge interconnection does not apply to this scenario. Certificate backups are not automatically generated.

Parent topic: Common Operations