Download Software for a Delayed Upgrade

Ensure that the server from which you download the software is reachable from the SLX device that you are upgrading.
Do not perform a standard delayed upgrade with the default-config option or the fullinstall option.
  1. Download the software from the hosting server.
    device# firmware download ftp noactivate user user pass extreme host
    10.x.x.x dir builds/slxos20.1.1a
    
    Performing system sanity check...
    You are running firmware download without Activating the downloaded firmware. 
      Please use firmware activate to activate the firmware.
    Do you want to continue? [y/n]:y
    If you enter y after the prompt, the device will download and install the firmware 
      to the secondary image location. This can be verified using the 'show version' 
      command. In the output below, note that firmware 20.x.x is active, but 20.x.x 
      has been loaded to the secondary, for future activation.
    device# show ver
    
    SLX-OS Operating System Version: 20.x.x
    Copyright (c) 1995-2020 Extreme Networks, Inc.
    Firmware name:      20.x.x
    Build Time:         09:27:29 Dec 19, 2019
    Install Time:       17:44:23 Dec 20, 2019
    Kernel:             4.14.67
    Control Processor:  Intel(R) Atom(TM) CPU C3758 @ 2.20GHz,  8 cores
    Microcode Version:  0x2e
    Memory Size:        System Total: 15632 MB
    System Uptime:      19days 4hrs 8mins 8secs 
    
    Name     Primary/Secondary Versions 
    ------------------------------------------
    SLX-OS   20.x.x
             20.x.x
    The device loads the software (firmware) image to the secondary image location. At this point, you can activate the image during a maintenance window.
  2. During a maintenance window, active the image.
    device# firmware activate
    
    This command will activate the firmware. It will cause a cold reboot and will 
    require that existing telnet, secure telnet or SSH sessions be restarted.
    
    Do you want to continue? [y/n]:y
    The device reboots and the new software is committed.