Reverting to the Old Image

Once the upgrade is completed, the primary partition has the new image, and the secondary partition has the older image. You can use the following steps to move the stack back to the older image.
  1. Move the older image from the secondary partition to the primary partition.
    • For a traditional stack, use the following command. 
      device# copy flash flash primary
    • For an SPX system, use the following command for CB units. 
      device# copy flash flash primary
    • For an SPX system, use the following command for PE units. 
      device# copy tftp flash server-ip file-name primary
  2. Confirm that the proper image has been reloaded on all units.
  3. Reboot the system from the primary flash image. 
    device# boot system flash primary
Parent topic: Software Upgrade and Downgrade