issue in image pre-download

[Suchi]

Hi.

I tried to  need upgrade firmware of WLC to 7.6.00.To avoid long hour outage, I was using image pre-download firmware upgrade method to all access points.There are 99 AP in total & one site has issues 5 Aps. There are 13 x 3600 APs in this site. Out of 13, 5 x APs are not able to push new firmwareFrom  my troubleshooting, I found that when I start pushing new firmware to AP, Secure tunnel between WLC and AP drops.

Please  guide me to resolve this issue.

Thanks

[Scott Fella]

SSH into the AP and issue a show flash and see if you have enough space. You might have files like crash logs or event logs or even old images that is taking up space and not allowing the AP to upload any new images. You need to free up space by removing those files. 

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Scotty

[Suchi]

Hi Scott,

Please see below output

show flash:

Directory of flash:/

    2  -rwx       70825  May 29 2013 02:18:31 +00:00  event.log
    3  drwx           0   Mar 1 1993 00:00:12 +00:00  configs
    4  -rwx         280  Apr 24 2014 05:17:21 +00:00  lwapp_officeextend.cfg
    5  -rwx       29996  Apr 28 2014 13:24:13 +00:00  lwapp_non_apspecific_reap.cfg
    6  -rwx       95008  Apr 24 2014 05:17:24 +00:00  lwapp_reap.cfg
    7  drwx         832  May 29 2013 00:23:41 +00:00  ap3g2-k9w8-mx.152-2.JA1
   46  -rwx          64   Mar 1 1993 00:00:34 +00:00  sensord_CSPRNG0
    9  drwx         192   Dec 4 2012 05:00:01 +00:00  ap3g2-rcvk9w8-mx
   47  -rwx          64   Mar 1 1993 00:00:35 +00:00  sensord_CSPRNG1
   48  -rwx         230  Apr 24 2014 05:17:20 +00:00  env_vars
   49  -rwx       60760  Apr 24 2014 05:14:40 +00:00  event.capwap
   51  -rwx        7192  Apr 28 2014 14:04:59 +00:00  private-multiple-fs

31997952 bytes total (13533184 bytes free)

[Scott Fella]

Well try to delete these files:

    2  -rwx       70825  May 29 2013 02:18:31 +00:00  event.log
    4  -rwx         280  Apr 24 2014 05:17:21 +00:00  lwapp_officeextend.cfg
    5  -rwx       29996  Apr 28 2014 13:24:13 +00:00  lwapp_non_apspecific_reap.cfg
    6  -rwx       95008  Apr 24 2014 05:17:24 +00:00  lwapp_reap.cfg
   49  -rwx       60760  Apr 24 2014 05:14:40 +00:00  event.capwap
 

Try to pre-image download again.  If not, you can always use the archive download-sw command from SSH of the AP.

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Scotty

[Leo Laohoo]

31997952 bytes total (13533184 bytes free)

Something is not right here.  You've got HUGE free space.  Exactly what is the current version of your firmware?  

Early versions that first supported the pre-download had a bug (if I remembered correctly) that behaves exactly what you are seeing now.  The only recourse was to reboot the controller.

[Scott Fella]

Yeah there is enough... Nothing is 100%, so the work around is to out the image on the AP itself. That's what I would do. Why is it not working... Who knows, but I wouldn't waste any time to be honest.  Upload the image using the archive command and call it a night:) 

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Scotty