topic Re: WLC boot loader upgrade in Wireless

WLC boot loader upgrade

nawas — Sun, 04 Jul 2021 00:38:27 GMT

WLC2100, I'm trying to upgrade the bootloader, I downloaded the file -er.aes and did the upgrade without any error and after the reboot I still see the same old boot version. I tried the same procedure twice but still the same result. Can someone tell me what could be wrong.

Re: WLC boot loader upgrade

Rob Huffman — Tue, 26 May 2009 15:09:05 GMT

Hi Nawaz,

Just a guess here, but you may be seeing this;

The 4.2.112.0 ER.aes file is the last ER file to contain a bootloader. If you want the latest bootloader, install the 4.2.112.0 ER.aes file.

From this doc;

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

Hope this helps!

Rob

Re: WLC boot loader upgrade

Leo Laohoo — Tue, 26 May 2009 23:57:58 GMT

Rob's right. 4.2.112.0 is the latest "true" bootloader (the others are just patches or improvements to the 4.2.112.0). So when you download the latest bootloader, 4.2.112.0 will still come up.

Re: WLC boot loader upgrade

nawas — Wed, 27 May 2009 13:37:18 GMT

I should have mentioned this is what I have tried, I used version 4.2.112.0 ER.aes for the bootloader but when I do show sysinfo I still see 4.0.191, please see below

Manufacturer's Name.............................. Cisco Systems Inc.

Product Name..................................... Cisco Controller

Product Version.................................. 4.2.176.0

RTOS Version..................................... 4.2.176.0

Bootloader Version............................... 4.0.191.0

Re: WLC boot loader upgrade

Leo Laohoo — Thu, 28 May 2009 00:20:20 GMT

This is from a 4402 ...

Product Version.................................. 5.2.178.0

RTOS Version..................................... 5.2.178.0

Bootloader Version............................... 4.2.112.0

Re: WLC boot loader upgrade

Peter Nugent — Thu, 28 May 2009 12:09:32 GMT

You cannot upgrade the bootloader on a 2100 due to hardware limitations.

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

Re: WLC boot loader upgrade

dancampb — Thu, 28 May 2009 19:05:52 GMT

The ER image isn't technically the bootloader. It is an image that is loaded between the bootloader and the main image. The bootloader that is shown will update with the main image upgrade if needed.