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Rodrigo José Petreça
Asked: 2020-07-02 13:32:01 +0800 CST

Ubuntu Hash Sum Incorrect [duplicate]

  • 772

I tried to install:

  • Ubuntu 20.04
  • Xubuntu 20.04
  • Kubuntu 20.04

But, post install on execute sudo apt-get update, I received the message "Hash Sum mismatch"

What is the problem?

I tried:

apt clean
apt-get clean
rm -rf /var/lib/apt/lists/*
updates apt hash 20.04

1 Answers

  1. To solve hash sum mismatch you simply need to enable acquire-by-hash which is available in apt 1.2.0 or newer (if you are using Ubuntu Xenial (16.04) or Debian Stretch, or anything newer, you will be running a version of APT that supports this feature).

    To enable acquire-by-hash do the following:

    sudo -s
echo "Acquire::By-Hash \"yes\"; ">/etc/apt/apt.conf.d/01byhash
apt update

    For a background on apt and other fixes to your problem, see this helpful webpage.

    If the above doesn't work for you you can try the following commands:

    sudo -s    
apt-get clean
rm -rf /var/lib/apt/lists/*
apt-get clean
apt-get update
apt-get upgrade
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