topic Re: HELP!!! WLC 2006 in Wireless

HELP!!! WLC 2006

yazai_200 — Sat, 03 Jul 2021 22:14:31 GMT

dear all!!

WLC 2006 lost the ios,and started with grub> prompt,what can i do to recovery the ios??

Re: HELP!!! WLC 2006

dancampb — Sat, 19 Jan 2008 14:26:43 GMT

You will need to contact TAC.

Re: HELP!!! WLC 2006

Rob Huffman — Sat, 19 Jan 2008 15:20:49 GMT

Hi jianhua,

Dan is most correct here (5 points for your good work Dan!) I just thought that I would add this info for your TAC case. It may speed things up a bit.

CSCsd52483

Controller stuck at grub> prompt

Symptom:

A WLC2006, WLC2106 or NM-AIR-WLC6 may seen to display a "grub>" prompt on the console port. It will be unable to boot the

WLC software and will not be able to operate normally.

Workaround:

Replace the hardware.

Hope this helps! And best of luck.

Rob

Re: HELP!!! WLC 2006

yazai_200 — Sun, 20 Jan 2008 08:28:46 GMT

thank you very much!!

Re: HELP!!! WLC 2006

taylor.robert — Wed, 28 Jan 2009 12:24:51 GMT

Some very good new for everyone who has experienced this very frustrating error. I have found a resolution to this problem (well it fixed my issue, which certainly seems extremely similar to this one)...

Type what you see following the Grub command prompt...

Symptom:

A WLC526, WLC2006, WLC2106 or NM-AIR-WLC6 may seen to display a

"grub>" prompt on the console port. It will be unable to boot the

WLC software and will not be able to operate normally.

Workaround:

For AIR-WLC526 / AIR-WLC2006 / AIR-WLC2106:

From the grub prompt use the following commands to boot primary image

grub> root (hd0,1)

grub> kernel /bzImage-primary root=/dev/ram ramdisk_size=32768 printk=yes

console=ttyS0,9600

grub> initrd (hd0,1)/initrd-primary

grub> boot

From the grub prompt use the following commands to boot secondary image

grub> root (hd0,1)

grub> kernel /bzImage-secondary root=/dev/ram ramdisk_size=32768 printk=yes console=ttyS0,9600

grub> initrd (hd0,1)/initrd-secondary

grub> boot

Then TFTP download an official version of WLC code, to install a bootloader

for the WLC.

This was the fix that I have been searching for - I hope it works for you too.

Rob T.

Re: HELP!!! WLC 2006

amiresmailpour — Wed, 01 Apr 2009 21:44:40 GMT

Hi guys,

I have the same problem, but the grub does not see (hd0, 1), it can only see (hd0), and when I enter there, and use the kernel command, then the grub gives this error message:

"Error 17: Cannot mount selected partition"

grub cannot do some of the commands, in the help items, there are many options, but in order to do that it needs to mount the kernel.

Any ideas is appreciated.

amir

Re: HELP!!! WLC 2006

Leo Laohoo — Wed, 01 Apr 2009 23:24:47 GMT

Hi Amir,

1. No spaces in the "(hd0, 1)";

2. If all else fails, raise a Cisco TAC.

Re: HELP!!! WLC 2006

amiresmailpour — Thu, 02 Apr 2009 13:44:29 GMT

This is what I get:

grub> root (hd0,1)

Error 5: Partition table invalid or corrupt

Regards

Amir

Re: HELP!!! WLC 2006

Leo Laohoo — Thu, 02 Apr 2009 21:43:49 GMT

Hi Amir,

Raise a Cisco TAC.

Re: HELP!!! WLC 2006

globaltech — Mon, 22 Jun 2009 01:08:24 GMT

Hello,

When I put this sentence:

initrd (hd0,1)/initrd-primary

I get the following error:

Error 15: File not found

If I try to boot the secondary image, it starts but I got an error that can not create some files because the system is Read-only.

Any ideas?

Re: HELP!!! WLC 2006

Leo Laohoo — Mon, 22 Jun 2009 01:23:36 GMT

Raise a Cisco TAC to get your appliance RMA-ed.

Re: HELP!!! WLC 2006

tdennehy — Wed, 22 Feb 2012 17:55:49 GMT

I know someone who had this issue. She took the cover off the controller and saw the compact flash module. It wasn't seated properly, so she pulled it out and put it back in and closed the unit up.... and it booted.

HELP!!! WLC 2006

daviddess — Mon, 01 Apr 2013 19:24:32 GMT

Fixed by opening unit and reseating flash!!!