Clear the existing engine configuration before changing the Secure SD-WAN Engine role
Before you change the role of an Secure SD-WAN Engine from one type to another, clear the existing engine configuration.
Steps
-
Connect to the engine’s command line using a monitor and keyboard or a serial cable, and log on as root.
If you use a serial cable, use a terminal console program to connect to the Secure SD-WAN appliance with these settings:
- Bits per second — 115,200
- Data bits — 8
- Parity — None
- Stop bits — 1.
Note: The serial console port speed is 115,200 bps in most Secure SD-WAN appliances. The speed is 9600 bps in older Secure SD-WAN appliance models. See the hardware guide for your Secure SD-WAN appliance model for more information. -
Enter the command
sg-clear-all.
The engine restarts and you are prompted to select the system restore options.CAUTION:Using the system restore options clears all configuration information from the engine. It is not possible to recover the engine’s previous configuration.
-
Type
2 and press
Enter.
You are prompted to select the number of overwrites for the data partition.
-
Type
0 and press
Enter.
You are prompted to select the number of overwrites for the swap partition.
-
Type
0 and press
Enter.
You are prompted to select whether to remove the spool partition.
-
Type
2 and press
Enter.
You are prompted to select the number of overwrites for the spool partition.
-
Type
0 and press
Enter.
You are prompted to confirm that you want to clear the configuration.
-
Type
YES and press
Enter.
The system starts clearing the engine’s configuration.CAUTION:Do not turn off or restart the engine while the configuration is being cleared. Doing so can cause a serious error that prevents the engine from starting.
-
Press
Enter to restart the engine when prompted.
The engine restarts and the Secure SD-WAN Configuration Wizard starts on the command line.