Everyone,
Have some very strange behavior when upgrading several models of C2960 switches. Here's the models and behavior"
WS-C2960S-24TS-S: booted after upgrade fine
WS-C2960XR-48TD-I: Booted as described below
WS-C2960X-24PS-L: Booted as described below
WS-C2960S-48TS-S: Booted as described below
As you see above my first "test upgrade of my code was the 24TS-S and worked absolutely fine. These are all remote switches that I have trouble physically accessing, some are even in other countries. I have 26 to upgrade and need to come up with a consistent approach that works.
The ones that failed were very strange, on reload they never came back up. Did the upgrades before 12pm. That night checked again at 9:30 PM and they were still down. Went to bed planning on traveling to 2 of the sites which were in at least 80 miles, checked all three of the switches listed above as "Booted as described below" before leaving and they were up and running almost 24 hours later. Checked configs on them and they were running the new IOS and all changes made during upgrade were applied. I had one within 20 minutes of home so I double checked the config and went on and reloaded it. It came up fine within 5 minutes.
Was never able to console into any of them so couldn't check if they were in ROMMON or at a wizard prompt or something, so I have NO IDEA how this kind of behavior is possible. Any ideas will be appreciated and if the is an issue with the upgrade approach I am using below please let me know.
Here was the approach I used on each of these switches, this particular code was for the WS-C2960XR-48TD-I, the proper IOS was modified in the below code for each model, so please do not mention I'm using the wrong IOS. Each was the suggested IOS for the respective models.
dir flash:
sho ver
delete /force /recursive flash:/c2960x-universalk9-mz.150-2a.EX5/c2960x-universalk9-mz.150-2a.EX5.bin
copy tftp flash-------------------c2960x-universalk9-mz.152-7.E7.bin
dir flash:
verify /md5 flash:c2960x-universalk9-mz.152-7.E7.bin
config t
boot system flash:c2960x-universalk9-mz.152-7.E7.bin
sho boot
write mem
reload
These same exact steps on each switch, could this be variations in config register or something. On these switches my understanding is the config register should always be 0xf. Is this correct or does it need modified modified to something else after upgrade and before reload. The only other thing is I'm copying the bin and the original IOS file was tar, although I did change "boot system", nothing else though. Did I miss something that need updated when switching from tar to bin?????
Thanks,
Chuck
