The rootfs on my newly created SD card does not boot

After creating a new SD card from the original images the system won't boot.
Following problems are common:

  • You get a kernel panic with "no init found" message.
  • Using apt-get upgrade or similar gives you error messages like this "fopen: permission denied".

Most probably you have messed up permissions of your rootfs during copying. Please follow this Howto:
http://www.armbedded.eu/node/370