3850 - Software upgrade failed

[mandeep1374]

Hi,

I'm attempting a version upgrade on a 3850-24S-S from:

03.06.06E (CAT3K_CAA-UNIVERSALK9-M) To Gibraltar-16.12.10 MD (cat3k_caa-universalk9.16.12.10.SPA.bin)

It fails with the following error:

Starting compatibility checks
[1]: % Candidate package compatibility checks failed because the following
package dependencies were not satisfied. Operation aborted.

[1]: % An internal error was encountered. Operation aborted.

I'm a scared to use "force", can it brick the switch? Inputs are appreciated. 

Thanks

[Reza Sharifi]

Hi,

It appears that you have to use the force command. See this post:

https://community.cisco.com/t5/switching/update-ios-3850-24xu-l-from-3-7-4e-to-16-3-5b/td-p/3299891

Be very carful if the switch is in production as you may brake things.

HTH

[mandeep1374]

Thanks for the response.

This is in fact a production switch. 

[Leo Laohoo]

Always use the "force" option.  Always.  All the time.  

[Gopinath_Pigili]

run the software install command with "new force"

software install file tftp://x.x.x.x/cat3k_caa-universalk9.SPA.03.06.09.E.152-2.E9.bin new force

Here is the Catalyst 3850 series switch Troubleshooting documentation....Hope...it may useful....

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/117552-technote-cat3850-00.html

Best regards
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