What is needed to make a busybox init boot to a shell on an arm device/phone?

I compiled busybox with arm-linux-gnueabihf for and Cortex-A/armv7-a arm device/phone. When I run the binary on android it works well. I decided to modify the android boot image. In the boot image ramdisk I have > bin/busybox > init which is a link to busybox I tried to boot with linuxrc in the root of the ramdisk but the phone/device reboots on boot. After I used init it boots and just hangs on the logo. My assumption is that it is actually doing something and just hangs when its finished. Is it because I need to have populated stuff in the /dev and /proc? What would I need to make it show me the black screen for login? Is it because init hasn't connected to the output monitor which is the phones lcd? Do I have to call busybox login or busybox something in my /etc/init.d/rcS