Obtaining the Rescue Image from a TFTP Server

To recover the switch, you must enter the Bootloader and issue a series of commands.

To access the Bootloader:
1. Attach a serial cable to the console port of the MSM.
2. Attach the other end of the serial cable to a properly configured terminal or terminal emulator. The terminal settings are:
  The terminal settings are:
  - 9600 baud
  - 8 data bits
  - 1 stop bit
  - no parity
  - XON/OFF flow control enabled
3. Reboot the MSM and press the spacebar key on the keyboard of the terminal during the boot up process.
  
  Note
  
  You must press the spacebar key immediately after a power cycle of the MSM in order to get into the Bootloader application.
  
  On BlackDiamond 8800 series switches, when you see the BootROM banner, press the spacebar key to get into the Bootloader application.
  
  On the BlackDiamond X8 series switches, press and hold the spacebar key to enter the bootROM (actually a BIOS) as soon as you see CF card tested OK on the screen.
4. As soon as you see the BootRom -> prompt (BlackDiamond X8, 8800 series switches), release the spacebar. From here, you can begin the recovery process.
To obtain the rescue image and recover the switch:
1. Provide the network information (IP address, netmask, and gateway) for the switch using the following command:
  configip ipaddress ip-address[netmask] gateway gateway-address
  
  Where the following is true:
  - ip-address—Specifies the IP address of the switch
  - netmask—Specifies the netmask of the switch
  - gateway-address—Specifies the gateway of the switch
2. Download the ExtremeXOS image using the following command:
  download image tftp-address filename
  Where the following is true:
  - 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 BOOTLOADER -> (BlackDiamond 10808 switch) or the BootRom -> (BlackDiamond 8800 and BlackDiamond 12800 series switches) 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 re-install 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.

Published March 2020prev | next

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