Installation problem to new pi board (Model B)

[casperbiering]

I'm having the exact same problem with the pi I got delivered today from RS. The red PWR led is turn on all the time, and the green ACT led makes a single blink, and not output on the hdmi port.

By copying all the /boot files over from raspbian (via NOOBS) and modifying the cmdline.txt, the kernel loads but fails at "PANIC: VFS: Unable to mount root fs on unknown-block" probally due to missing BTRS support?!?!

By using the same sd card on an older pi, everything works as expected.