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3850 Boot Mode
So I ran into an interesting problem the other day. It was my first install of a pair of 3850's stacked together. If you've read other posts you know that I always format flash and put whatever IOS I need on there. So I formated flash and FTP'd cat3k_caa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin to flash. I rebooted the stack and everything was fine. I like to reboot them a couple of times as I configure just to make sure everything is cool, part of the burn-in process. My second reboot only booted to rommon. I was able to boot the switches using the boot [ios image] command. Weird. I know of the bug that was in the earlier release, but I looked it up just to make sure it was fixedin 3.2.2 which it was. After the boot I noticed an "error"
The System is using a non-recommended Boot mode.
Not all features may be available in this boot mode.
Please check the product configuration guide.
After watching another reboot I saw that the switch was trying to load flash:packages.conf. After some more digging I found that you can expand the IOS-XE image to separate the pkg files.