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Cisco Controller 2504 boot loader failed verification

I was updating one of my cisco wlc 2504 software to 8.0.

I have done this before without issue; however, it loaded, rebooted.

It showed on the wlc 8.0.

All 5 of the access points, dropped like normal. I started to see one at a time come back online with the new version 8.0.

Everything looked fine, everything was working, about to leave the site and then cisco WLC froze.

I waited about 10 minutes and it never responded. Turn it off and back on, now I get

"Improper system operation detected
System has been halted because:
1. Boot loader failed verification"

I ended up buying another and shipping it overnight to get the site back up.

Anyway to fix this one?

Daniel Sheppard

You could try to reflash by booting into rommon and loading the OS again.

Or, you could be lazy and call Cisco TAC and get them to fix it for you (if you have valid support)

kevingattis

ASKER

I don't have smartnet with this cisco wlc. How do you reflash the cisco 2504?

Daniel Sheppard

Doing some research, a Cisco 2504 has two boot images, you should be able to boot into the second image. Then follow: http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/68835-wlc-upgrade.html

kevingattis

ASKER

I'm not able to break out of the cisco loop, boot loader failed.

I'm trying to press ctrl-break when I cut it on.

WLCNG Boot Loader Version 1.0.16 (Built on Feb 2
Board Revision 0.0 (SN: PSZ1724068Q, Type: AIR-CT2504-K9) (P)

Verifying boot loader integrity...

##########################################
### IMPROPER SYSTEM OPERATION DETECTED ###
### ---------------------------------- ###
### System has been halted because: ###
### 1. Boot loader failed verification ###
##########################################

Is Ctrl-break the right key. I'm using powerterm to COM into the WLC.

ASKER CERTIFIED SOLUTION

Daniel Sheppard

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