To answer #1, this is mandatory for 12.10 and onward. As for the backward compatibility issues, I dont' think it will be a problem since uboot in older images doesn't have the intelligence to pass the DTB to ther kernel.
As for #4, we never booted snowball with a DTB.
To answer #1, this is mandatory for 12.10 and onward. As for the backward compatibility issues, I dont' think it will be a problem since uboot in older images doesn't have the intelligence to pass the DTB to ther kernel.
As for #4, we never booted snowball with a DTB.