IOS Upgrade on Cisco 3850 fiber switches using TFTP

[mohsin7666]

Dear Support Team,

How to IOS Upgrade on Cisco 3850 fiber switches using T FTP.

[Mike.Cifelli]

Setup your remote tftp server. From command line: copy tftp flash: and answer accordingly. Once the ios is on flash use this:
https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117552-technote-cat3850-00.html

[kumaamit]

Switch#copy usbflash0:[image name] flash:

And repeat the same command for the second switch

Switch#copy usbflash0:[image name] flash2:

Once done change the boot system to the newly uploaded image

Switch(config)# boot syst switch all flash:[image name]

Then finally reload....