Boot freezes after Kali-rolling upgrade

Hello All,

I have just finished upgrading my Kali2.0 sana to Kali-Rolling successfully, after successful installation as directed over the official website http://docs.kali.org/general-use/ins...-on-kali-linux , after I disabled the nouveau, my machine failed to reboot after loading grub window.

kernel header showing 4.6.0-kali-amd64

Following error message shows in dmesg | tail

bluetooth hci0: firmware: failed to load brcm.hcd error(-2)
initialization failed fb0
i915 fb0: inteldrmfb frame buffer device

Any suggestion on how this error could be resolved would be greatly appreciated!