hash sum mismatch ubuntu 20.04 code example
Example 1: ubuntu bionic update security has sum mismatch
sudo rm -rf /var/lib/apt/lists/partial
sudo apt-get update -o Acquire::CompressionTypes::Order::=gz
Example 2: hash sum mismatch ubuntu 20.04
sudo rm -rf /var/lib/apt/lists/*
sudo apt-get update -o Acquire::CompressionTypes::Order::=gz
sudo apt-get update && sudo apt-get upgrade