I took a a Pidora image that I have running on a Raspberry Pi B and put it onto an 8Gb microSD card from Kingston. I checked the image by booting up the Pi B from it in an adapter card. I have two Pi 2's, and when I try to boot them up, I see the red and green light flash on for a bit, then the green light goes out, while the read led stays on. There is no HDMI output during the initial flash of the green light. I have tried a couple different power supplies, the largest one providing 5V and 1A.
I'm not sure what else to try at this point other than trying another boot image once I get another microSD card.
Any suggestions?
