This article is a reference guide for updating the firmware on switches. As I handle a broad range of switch vendors and models, I got tired of looking up the commands, and decided to bundle it all here in one place for easy reference.
Note that this document is not a step-by-step guide to update a specific switch but rather a reference for which CLI-commands to use.
First, look up current version and active boot bank. Can be either A: or B:
show boot system stack-unit 1 upgrade system tftp://10.0.0.1/FTOS-SK-220.127.116.11P9.bin B: conf t boot system stack-unit 1 primary system://B end wr mem reload
When upgrading from USB-stick, change tftp:// to usbflash://. USB-stick needs to be FAT32.