topic Re: How to Manually upgrade primary image on WLC4400 ? in Network Security

How to Manually upgrade primary image on WLC4400 ?

cy_yeh — Mon, 11 Mar 2019 17:01:35 GMT

Hi, Mark

I downgraded the WLC4400 software from 4.1.171 to 3.2.215
Maybe my downgrade procedure was not correct.
Now the both the primary and backup image is 3.2.215.0 (as below)

and WLC4400 cannot boot successfully.
(WLC4404 crashed after bootup 2 minutes)

=================================================
Boot Options

Please choose an option from below:

1. Run primary image (Version 3.2.215.0) (active)
2. Run backup image (Version 3.2.215.0)
3. Manually upgrade primary image
4. Change active boot image
5. Clear Configuration
=================================================

How can I manually upgrade primary image ?
( above option 3 "Manually upgrade primary image")

Best Regards,

Ching-Yuan Yeh

Re: How to Manually upgrade primary image on WLC4400 ?

Ganesh Hariharan — Tue, 26 Jan 2010 14:07:20 GMT

Hi, Mark
I downgraded the WLC4400 software from 4.1.171 to 3.2.215
Maybe my downgrade procedure was not correct.
Now the both the primary and backup image is 3.2.215.0 (as below)
and WLC4400 cannot boot successfully.
(WLC4404 crashed after bootup 2 minutes)
=================================================
Boot Options
Please choose an option from below:
 1. Run primary image (Version 3.2.215.0) (active)
 2. Run backup image  (Version 3.2.215.0)
 3. Manually upgrade primary image
 4. Change active boot image
 5. Clear Configuration
=================================================
How can I manually upgrade primary image ?
( above option 3 "Manually upgrade primary image")

Best Regards,
Ching-Yuan Yeh

Hi,

Check out the below link for detail procedure on upgardation of Wireless Lan Controller.

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00805f381f.shtml#cli

Ganesh.H

Re: How to Manually upgrade primary image on WLC4400 ?

cy_yeh — Tue, 26 Jan 2010 14:30:30 GMT

Hi,

Now, my WLC4400 cannot boot successfully. It would crash after boot up 2 minutes.

So I can not upgrade software use GUI or CLI upgrade procedure.

I think the only way is use the "Manually upgrade primary image" as below.

=================================================
Boot Options

Please choose an option from below:

But, after I chose the option 3, it appeared

"!!! WARNING updating using .aes or unapproved files will disable this unit !!!"

How to reover it ?

Best Regards,

Ching-Yuan Yeh

Re: How to Manually upgrade primary image on WLC4400 ?

sbhadrav@cisco.com — Wed, 07 Mar 2018 20:43:21 GMT

As per the WLC configuration guide:

1. Download new image to the WLC.

2. Change the new image to backup image. > config boot backup)

3. Predownload new image to access points > config ap image predownload {primary | backup} {ap_name | all}

Here not sure whether to use the primary or backup. Is it from AP perspective or from WLC.

I mean

using primary does it mean that the WLC primary image will be downloaded (which is in fact the existing image becasue of step 2.)

or

using primary means whatever image I download becomes the primary image on the AP

4. Swap primary and secondary image on AP > config ap image swap {ap_name | all}

5. Make sure all APs have done with the predownload

6. reset system in HH:MM:SS image {swap | no-swap} reset-aps [save-config]

Here not sure what exactly the swap image does. Whether it swaps the image on the AP only or on the controller as well?

I have the feeling if I follow the guide my WLC will have the new code as backup and after reset system using the swap keyword the APs will come back with the new code.