Change the Network Operating System Personality

Use this procedure on a Fabric Engine switch to change the Network Operating System (NOS) personality.

The primary method to select a NOS personality for the switch is by using ExtremeCloud IQ. If the network is not accessible, or if you do not use Extreme Networks management software, you can change the NOS personality by using Fabric Engine CLI commands.

Before you begin

Use FTP to transfer the NOS image to the /intflash/ directory.

About this task

If you change the NOS personality, the system deletes all configuration, licensing, and log files that pertain to the previous NOS personality.

If a power interruption occurs during a personality change, the system restarts the process after you restore power to the switch.

As part of the NOS personality change, you must restart the switch. If, during the restart, the system detects a failure, the NOS personality does not change. After the original NOS restarts, it logs an error message and raises a persistent alarm.

Note

This procedure does not provide information about upgrading Fabric Engine. For details about upgrading the Fabric Engine release, see Upgrade the Software.

Procedure

Enter Privileged EXEC mode:

enable
Unpack the NOS image:

software add WORD<1-99> -y

Note

The NOS image file is removed after the software add command runs.
Install the NOS image:

software activate WORD<1-99>
Confirm you want to change the NOS personality by entering Y.
Confirm the new image has been added and will become active after the next restart:

show software

Important

If you decide not to change the NOS personality, before you restart the switch, you can run the software activate command again with the primary release as the image name and the system cancels the NOS personality change.
Restart the switch.

Example

Change the NOS personality to Switch Engine.

5520-24W-VOSS:1>enable
5520-24W-VOSS:1#software add summit_arm-31.6.0.459.xos
Switch Engine image validated successfully
Adding Switch Engine software - /intflash/summit_arm-31.6.0.459.xos
Extraction of /intflash/summit_arm-31.6.0.459.xos to /intflash/release/summit_arm-31.6.0.459.xos successful
5520-24W-VOSS:1#show software 
=============================================================================
                    software releases in /intflash/release/
=============================================================================
summit_arm-31.6.0.459.xos
5520.8.5.0.0int028            (Primary Release)             (Signed Release)

-----------------------------------------------------------------------------
Auto Commit     : enabled
Commit Timeout  : 10 minutes
5520-24W-VOSS:1#software activate summit_arm-31.6.0.459.xos
WARNING: The specified image is for the Switch Engine Network Operating System and the Fabric Engine Network Operating System is currently running.
If you continue, all data including configurations, logs and debugs will be cleared, except for the license activation status. Switch Engine will be installed and Fabric Engine image files will be removed.  Do you want to continue (y/n) ? y
Executing software activate for version summit_arm-31.6.0.459.xos.
Validated Switch Engine software
Activating Switch Engine software

Primary Version:   summit_arm-31.6.0.459.xos
Backup Version:    5520.8.5.0.0int028.64

Changes will take effect on next reboot.

Variable Definitions

The following table defines parameters for the software command.


Variable	Value
activate WORD<1-99>	Specifies the software version to copy to the boot flash file.
add WORD<1-99>	Specifies the software version to unpack.
-y	Suppresses the confirmation message to automatically overwrite the non-primary image. If you omit this parameter, you must confirm the action to overwrite the non-primary image.