I found wrong descriptions in the /boot/uEnv.txt. I was trying to disable HDMI, but something is wrong here. After disabling the hdmi stuff my beagle bone couldn't boot.
##BeagleBone Black: HDMI (Audio/Video) disabled: #dtb=am335x-boneblack-emmc-overlay.dtb ##BeagleBone Black: eMMC disabled: dtb=am335x-boneblack-hdmi-overlay.dtb -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
