Prompt Issues Installing LINUX : Rooted S5

So I have my S5 rooted. All the nice root stuff installed ect. BUT I can not get linux loader, or linux installer to fully load kali linux or any other for that matter. It always hangs up on loading from the terminal window. Has anyone had luck getting a copy of linux loaded on a s5? I have read plenty of ppl that have done with other devices even a s4, but seems even after disabling KNOX security software it will still not release the system FULLY.

BusyBox v1.20.2
Says permissions not allowing it. It has SU access, so Where am I going wrong?

Please HELP!