
                    For chromeos, we pick up the best solutions provided by github life savers.
                    If google brings you here, you are so lucky! These life savers are angels, they have well solved your problems.
                    So do not waste time scrolling the original issue threads just to dig out solutions... 
                    Here you are, you are welcome. Then, go back to work!
                    

Solve it by


It means:

Any local user contacting out world to port tcp 53 send to $custom_dns_ip at port 53 

outline client Using custom DNS server instead of OpenDNS

@sadams0 @coderofsalvation Download the new crouton binary from my last post unzip it 

crouton Can't Initialize ubuntu with crouton

Thanks everyone! Was quite worried when I saw this error today as my chromebook is my main development machine (been running a Toshiba 2 the older model 

crouton Can't run prepare.sh during setup, and can't access file when run separately

FIXED!
If your problem is the IOPL error Please describe your issue:
Black screen after fresh install AND on old install Occurred on both Trusty and Xenial 