I have a Raspberry Pi 2 and I created a Linux distribution using
buildroot. It generated an
sdcard.img file. I tried to format my 8 GB SD card and flashing the
sdcard.img on it using:
sudo dd if=~/buildroot/output/images/sdcard.img of=/dev/sdb
When I put the SD card in my Raspberry Pi and I put the power cable the ACT blink 2 times.
I don't understand. What is the problem?