I bought 2x Raspberry Pi 3s and 3x Kingston SD cards.
I downloaded the latest version of Raspbian, and did an update/upgrade cycle. After rebooting, I get a kernel panic:
Everything works great and as expected until I do a reboot.
After researching, I found out that I had an under powered adapter and have switched that, but, I am now getting the exact same problem of both Pis using any card.
Does anyone have any advice here?
It's easy enough to read if you zoom in. Unfortunately it's hard to tell the when the problem starts because it already has. Although it is unlikely to make much difference for you in the end, see here about using Ctrl-s and Ctrl-q to pause/resume output and PgUp / PgDn to scroll through it. Note that it is too late if you wait for the crash -- after that it will be frozen.
I'd just try reinstalling everything in the first partition from a new image. Just make sure when you do this that you check that whatever directory in in /lib/modules on the 2nd partition (the root filesystem, presuming Raspbian) is also in yours. The directory will be named after a kernel verison, like 4.1.19-v7+. You may have multiple directories there, but the fresh image will only have one. If you already have a directory with exactly that version number, you don't have to replace it. To sum up:
Replace everything in the boot partition with stuff from a new image (or the image file you used originally, if you still have it).
Make sure you have the kernel's module directory, inside /lib/modules on the root fs, in the same place on your SD card.
