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Rescuing a Node in a SummitStack

You can use the rescue option on a node if it becomes unbootable due to a corrupt image. The rescue operation is independent of the SummitStack feature.

To rescue a node:

  1. Establish a terminal session using the console port of the node.
  2. Reboot this node. While rebooting enter the BootROM program.
    1. To enter the bootrom, wait until you see the message "Starting Default Bootloader..." and then press and hold the space bar until the BootROM prompt appears.
  3. Provide the network information (IP address, netmask, and gateway) for the switch using the following command:

    config ipaddress ip-address[netmask] gateway gateway-address

    Where the:

    • ip-address—Specifies the IP address of the switch

    • netmask—Specifies the netmask of the switch

    • gateway-address—Specifies the gateway of the switch

  4. Download the ExtremeXOS image using the following command:

    download image tftp-address filename

    Where the:

    • tftp-address—Specifies the IP address of the TFTP server that contains the ExtremeXOS image

    • filename—Specifies the filename of the ExtremeXOS image

    If you attempt to download a non-rescue image, the switch displays an error message and returns you to the BootROM command prompt.

After you download the ExtremeXOS image file, the switch installs the software and reboots. After the switch reboots, the switch enters an uninitialized state. At this point, configure the switch and save your configuration. In addition, if you previously had modular software packages installed, you must reinstall the software packages to each switch partition. For more information about installing software packages, see Software Upgrade and Boot Options

If you are unable to recover the switch with the rescue image, or the switch does not reboot, contact Extreme Networks Technical Support.

The rescue process:

  • Does not affect stacking configuration parameters.

  • Sets the security configuration to the factory defaults.

Published March 2020prev | next

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