Cisco AP IOS update

[heyjunsun]

hello

I have a question during Cisco AP IOS Upgrade.

I tried upgrading through GUI and I put C9800-AP-iosxe-wlc.bin in and I put ap1g7 in and booted it.

And it does not boot and the log as below appears.

ipv6 gw config loop in AC discovery 

CAPWAP State : Disovery 

Please use 'archive download-sw ewc-ap' to upgrade or rollback-the controller image.

Please use'show flexconnect ewc-ap lanuch-log' to check EWC-AP launch.log 

I've tried using the 'archive download-sw ewc-ap' command, but it hasn't changed.

Do you happen to know how to fix this and how to upgrade the IOS normally?

[marce1000]

 - Looks to me that the EWC conversion (loading C9800-AP-iosxe-wlc.bin) did not succeed ? For starters is that what you want : concerting to EWC ?

 M.

[heyjunsun]

What I want is IOS update.
It has been converted to EWC mode.

The problem is that we can't turn it from ROMMON to the previous version of IOS or update it.

I don't know how to give the AP an IP when I'm in ROMMON even though I'm trying to update the IOS
The TFTP server consists of a laptop.

[marce1000]

 - I am not sure if your EWC conversion was correctly executed because of :
                       https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr28291

 M.

[heyjunsun]

https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9120axi-access-point/217537-repairing-c9120-c9115-access-points-from.html 

I'm trying to reattempt the IOS upgrade by referring to this document, can I know the command to override the IOS with AP on the TFTP server in ROMMON mode?

The copy command is not used.

[marce1000]

 - The mentioned document does not need or mention ROMMON ; instead network parameters to get the recovery image are set in the u-boot> prompt , 

 M.

[heyjunsun]

Thank you marce! 

Thanks to you, the boot was successful!

But I don't know how to upgrade the IOS in the future...

[Rich R]

You don't mention what model of AP you are working with but since you are referring to the u-boot recovery guide I assume it is one of the C91xx APs which run AP-COS (ClickOS) not IOS.  This means they do not have ROMMON - only u-boot.  If you follow the instructions in that guide exactly (I have done it, as have many others, and it works) then the AP will be restored to a 8.10.130.0 CAPWAP image.  You should then upgrade it to a 8.10.190.0 (15.3.3-JK10) CAPWAP image, then upgrade to 17.6.6 CAPWAP image (15.3.3-JPK7) and then convert to EWC using the EWC software images.

[heyjunsun]

hello Rich R 

After reading the document yesterday
u-boot>reset
The command was issued and the boot was successful.
As you said, do I have to upgrade it sequentially in three ways?
8.10.130.0 --> 8.10.190.0 --> 17.6.6 CAPWAP --> EWC images?
Do you need a total of 3 upgrades?
I tried to convert it to EWC image 17.09.04a at once and failed. Do I have to go through that procedure?
Previously, I tried to convert from 16.12.4a to 17.09.04a, but I failed, so I downloaded a new boot image from u-boot and accessed it, but I'm confused.

[Rich R · Accepted solution]

It is best to follow that path if you want to be sure of success but sometimes it might work upgrading directly but it's a bit of a gamble.  Always refer to the release notes but they rarely cover very old versions (and Cisco don't test that, so it's best to do it in stages to ensure success.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html#Cisco_Concept.dita_59a2987f-2633-4630-8c7b-a8e8aecdeaf7

[heyjunsun]

hello Rich 

I prepared the necessary IOS as you said. It's version 8.10.13.0 now.
AP-type capwap tftp://172.19.96.10 command won't work, any command or reference document?

[Rich R · Accepted solution]

I guess you mean it's now running 8.10.130.0 after u-boot recovery?

The command to install next version (8.10.190.0) is:
AP#archive download-sw /reload tftp://172.19.96.10/ap1g7-k9w8-tar.153-3.JK10.tar
https://software.cisco.com/download/home/286322352/type/286288051/release/15.3.3-JK10