The Firmware Upgrade Utility
Firmware Upgrade Recovery
There are basically three conditions that call for firmware upgrade recovery:
wWhen you begin a firmware upgrade, but decide not to proceed with it.
wWhen the Mainboard firmware upgrade fails.
wWhen the I/O firmware upgrade fails.
Note: If one of the cascaded switches fails to upgrade successfully, unplug it from the installation and perform the recovery and upgrade operation independently. After it has been successfully upgraded, plug it back into the installation.
To perform a firmware upgrade recovery, do the following:
1.Slide the Firmware Upgrade Recovery Switch (see p. 8) to the Recover position.
2.Power off and restart the switch.
3.Repeat the upgrade procedure from Starting the Upgrade, p. 38.
4.Power off the switch.
5.Slide the Firmware Upgrade Recovery Switch back to the Normal position.
6.Power the switch back on.
43.