Under Ubuntu apt

 

sudo apt-get update encounter Hash Sum Mismatch

 

Solution :

 

with goagent in the case of :

 

sudo apt-get-o Acquire :: http::proxy = "http://127.0.0.1:8087/" update

 

No goagent words. . Some other methods online , does not seem tricky, try it :

 

sudo rm-rf / var / lib / apt / lists / *

 

sudo apt-get clean

 

sudo apt-get update - fix-missing