[SOLVED] Raspberry Pi 2 - first installation not working

[munich]

I just wanted to test Xbian on my new Pi 2 but I can't get it installed.

I installed XBian last version via windows 7 on a 8Gb Transcend SHDC Class 10 Cards.

The attached Display via HDMI stays black, after switching on the power. The green LED at the PI 2 blinks two times and stays off. The red LED shines. Nothing happens ...

config.txt states:
initramfs initramfs.gz 0x1000000
gpu_mem_1024=256
gpu_mem_512=144
gpu_mem_256=100
initial_turbo=3
hdmi_ignore_cec_init=1
disable_overscan=1
disable_splash=1
arm_freq=840
core_freq=320
sdram_freq=400

Any help to get it working is highly welcome.