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Upgrade to 15.2

Created by dave. Last edited by dave, 70 days ago. Viewed 115 times. #1
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3750X with 12.2, I have the 15.2 firmware, how do I upgrade?


Set up tftp server

Upload new firmware to flash, something like

# copy tftp: flash:

Do this:

conf t
boot system flash:c3750e-universalk9-mz.152-4.E7.bin

Check the value of boot to make sure the new firmware is indicated:

# show boot


# wr me


...wait about 30 minutes, it has a bunch of microcontrollers to flash

When it eventually comes back, check the running version:

# show ver

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