I would like to update (using CLI) the firmware on my new M4250 AV switches but i'm struggling to find relative information in the manual. I did try doing it, using the GUI but it hangs at 98% so I started looking in the CLI manual for the relative commands.
However, I could not see anything about updating the firmware. Could someone, please, let me know how can I update the firmware on these switches using command line?
Please type in show bootvar, it should show which image will be used for the next reboot. It is best practice to upgrade the one not being used for the next reboot.
You can use the copy command to transfer the firmware image to the switch via TFTP or USB. You may refer to page 211 of the user manual here.
Once you're done with the transfer, type in boot system to change the image to be used in the next reboot. Afterwards, reboot the switch by typing reload.
May I know which TFTP server program are you using? Also, you can try using ping on the switch to check if it's reachable and make sure that port 69 isn't blocked.
If it still doesn't work, you can also try USB.
Lastly, just want to add that you need to specify which image you want to boot into when typing the boot system command (e.g. boot system image2).
