Experiencing the following error while running “apt-get update” on your Ubuntu server?
W: Failed to fetch http://ca.archive.ubuntu.com/ubuntu/dist/precise/restricted/source/Sources Hash Sum mismatch
E: Some indes files failed to download. They haev been ignored, or old ones used instead.
Just run the following command :
sudo rm -Rf /var/lib/apt/lists/*
And run the update command again :
sudo apt-get update