apt-get upgrade crashes beagle bone black (shuts down)

I just flashed my beagle bone black with images_BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img after verifying the md5sum and aot-get update. when I issue apt-get upgrade the board initially looks to be properly processing the download and install of files then shuts downmight there be a problem with the image? If not, what else could be going wrong?

Eric

This is odd and the second time I've heard of someone having this
issue. I know apt-get hits the media device hard, so lets start with
the basic's.. How are you powering the board?

Is it 100% repeatable?

Regards,

powering the board from a new 5V 6A supply. it does NOT appear to be a power issue. 100% repeatable in that I loose connectivity and the network drops until reboot. The first time this happened I went to check on it all lights were off as if it powered down. the second time I went to see what happened after cycling power and logging in via ssh and rerunning apt-get upgrade it seemed to be flashing a really odd pattern but alas no connectivity. That said the board is at least dropping off the network and I’ve seen it shut down. another thing of note, my beagle white (A3A) running the same image and the same process (series of steps) does not show the same symptom. The black I’m referencing is an A4.