WLC 5520 IOS UPGRADE in HA Set up

[shailiniobrien]

The upgrade for the 5520 HA set up from 8.2 to 8.3 completed. However, the bootloader shows  different versions.

Attempted the upgrade from 8.3 to 8.5 . It failed during the upload of IOS file to the WLC.

Is the bootloader has something to do with this or a bug issue for the current 8.3  version ?

[marce1000]

 - Do you have a screenshot or can you provide logs from the failing sequence ?

 M.

[shailiniobrien]

log states " Transfer Task[PA]bootos c:915 ER image required to show version.

[shailiniobrien]

log states " Transfer Task[PA]bootos c:915 ER image required to show version.

[Sandeep Choudhary]

i think its failed due to wrong FTP config.

Please chekc the bug: 

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCus48353/?rfs=iqvred

https://community.cisco.com/t5/wireless-security-and-network/issue-downloading-uploading-wlc-config-file-via-ftp/td-p/2645163

Regards

Dont forget to arte helpful posts

[Leo Laohoo]

I want to see the exact error message and I also want to see the exact firmware version you're going to.

[shailiniobrien]

This has been solved. 

When you issue the show certificate command . It shows no certificate. 

I contacted TAC   and they have  make me reseated the SD card. Certificate then shows Then I had proceeded the upgrade. 

[shailiniobrien]

This has been solved. 

When you issue the show certificate command . It shows no certificate. 

I contacted TAC   and they have  make me reseated the SD card. Certificate then shows Then I had proceeded the upgrade.