Upgrading the BootROM

The ExtremeSwitching series switches have a two-stage BootROM. The first stage, called bootstrap, does basic initialization of the switch processor and loads one of two second-stage bootloaders (called primary and secondary).

If the switch does not boot properly, both the bootstrap and the bootloader allow you to access the boot options using the CLI.

If necessary, the bootloader can be updated after the switch has booted, using TFTP. You can upgrade the BootROM from a TFTP server on the network after the switch has booted and only when asked to do so by an Extreme Networks technical representative. For information about loading an image to a TFTP server and verifying which virtual router connects to your TFTP server, see Installing a Core Image.

Note

BootROM update is not supported on ExtremeSwitching X435 series switches.

To upgrade the BootROM, use the following command: download bootrom [ipaddress | hostname]filename {{vr}vrname}
On a SummitStack, the BootROM can be centrally upgraded.

Use the command above on the primary (Master) stack node to download a BootROM to all stacking nodes.
To download to a single stacking node, you need to specify the slot parameter:
download bootrom [ipaddress | hostname] filename {slot slot-number} {{vr} vrname}
Note
User-created VRs are supported only on the platforms listed for this feature in the ExtremeXOS 30.6 Feature License Requirements document.