Re: problems upgrading flash on 3640 (16 to 32MB)?
AFAIK, or remember, you can add the second chip without affecting the bootup of the box, but, I would highly recommend at least setting up an alternate boot source in case something bad happens and you loose your internal ios. This can be external flash or even a tftp server and the appropriate boot statement to allow a secondary boot via tftp. At least this will guarantee you won't be left in the dark after the upgrade. You will of course have to reformat your internal flash after you boot so you will loose your ios then but as long as you don't power down, you should be ok.
I would recommend the tftp boot method if you do not have pcmcia flash available.
boot system flash c3600-image
boot sys tftp c3600-image 10.x.x.x
Try the flash, and if that fails, load the helper image and try the tftp.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...