Cisco ISE downgrade from 3.0 to 2.7

[Shiraz Ali]

Hi,

We are downgrading Cisco ISE from 3.0 to 2.7. via USB and CIMC. but unfortunately we re getting errors.

attached is the screenshot separately..

[Arne Bier]

It's possible that the .iso file integrity is not correct - have you run a checksum against the ISE 2.7 .iso file ? If the sha/md5 checksum passed, then perhaps the USB image did not get burnt correctly - not easy to check that on the USB itself - might be worth reburning the USB or even better, booting the server off the .iso directly - it's a bit slower than USB, but at least you won't have any doubts about the USB part.

Lastly, have you hard powered the server off (unplug power) and then try again?

[Shiraz Ali]

Hi,

thanks for your acknowledge .

I have downloaded ISO file from cisco download portal. ( ise-2.7.0.356.SPA.x86_64 ). downgrade from 3.0 to 2.7

it is possible to downgrade from 3.0 to 2.4???

I have tried to install from USB and CIMC. we are getting same attached errors.

let me try again download fresh file and try it again.

[Arne Bier]

If you are happy to completely rebuild the server with an older ISE version then the answer is yes. It would not technically be considered a 'downgrade' because you will lose all the config. Instead, it would be considered to be a fresh install.

Can you install ISE 2.4 on SNS-35xx - yes

Can you install ISE 2.4 on SNS-36xx - yes (but why would you want to do that?) - you must install at least patch 9 afterwards.

[marce1000]

  - FYI : https://community.cisco.com/t5/network-access-control/ise-downgrade-from-3-0/td-p/4455547

 M.