Xbian on ext4 file-system??

[MacUsers]

Hi there,

An experienced XBMC but very new to Xbian user here. Got a Q: Is there any reason I shouldn't be using ext4 as "/" [root] partition (on an USB HDD) for Xbian? My idea is to keep the "/boot" on the SD card and the rest on the external HDD. That's the way I'm running my other RPis. My first attempt failed; gives me nothing but a blank screen with the horizontal cursor on the top left corner of the screen. Can anyone please confirm if "not having btrfs is the actual problem" before I start spending time on it please? Cheers!!