Upgrade CIMC

[markgaring1989]

Hi,

Is it ok to upgrade the cimc of cisco from 3.0(3a) to 4.1(2a) or i just need to upgrade it to 3.0(4a)?

Thank you

[Leo Laohoo]

You can go "straight" upgrade from 3.X to 4.X.  

NOTE:  

If you read the Release Notes, the procedure to upgrade the CIMC firmware is incomplete and confusing.  @Rasika Nayanajith has knocked up a detailed step-by-step process (LINK) that I find very useful.  

WARNING: 

CIMC upgrade can take, on average, 70 minutes.  During this time, the server is off.  

[markgaring1989]

Hi,

Thank you for this guide, i will try it now.

[markgaring1989]

Hi,

Im having an error when it say's he is copying some files error code 906....i used rufus application to make a bootable ISO...the firmware i install is 4.0(2a)...any work around for the problem?

Thank you

[Rasika Nayanajith · Accepted solution]

Thank you Leo for pointing to my post

Those iso files are direct downloads from cisco.com. You do not want any application to make it a iso files. See below post.

https://mrncciew.com/2019/09/06/cimc-upgrade-8540-5520-wlc/ 

What hardware model is it? 

HTH

Rasika

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[markgaring1989]

Hi,

Thank you for this i've successfully upgraded the cimc version.

the hardware model is C240 M4