Error caused by "Root filesystem partition size" too large
I tried to set it to 15000Mb, make always failed in the last few steps. After I lower it down, no error for make.
Another quick question: I tried the 4.1.26, the system just stopped after "starting kernal.." with only two linux penguins on the screen. (there should be words like 'hit enter to enable console support'), and the wired problem is, my keyboard stopped working after "starting kernal.."