Ubuntu xenial or zeisty upgrade to patch ​Meltdown and Spectre. This will repopulate the /etc/apt/sources.list file

ubuntu xenial or zeisty upgrade. patch ​Meltdown and Spectre

export CODENAME=$(lsb_release -c | awk '{print $2}')
echo "###### Ubuntu Main Repos
deb http://pt.archive.ubuntu.com/ubuntu/ ${CODENAME} main restricted universe multiverse
deb-src http://pt.archive.ubuntu.com/ubuntu/ ${CODENAME} main restricted universe multiverse
###### Ubuntu Update Repos
deb http://pt.archive.ubuntu.com/ubuntu/ ${CODENAME}-updates main restricted universe multiverse
deb http://pt.archive.ubuntu.com/ubuntu/ ${CODENAME}-proposed main restricted universe multiverse
###### Ubuntu Partner Repo
deb http://archive.canonical.com/ubuntu ${CODENAME} partner
deb http://security.ubuntu.com/ubuntu ${CODENAME}-security main restricted universe multiverse" | sudo tee /etc/apt/sources.list

sudo apt-get update
sudo apt-get -y dist-upgrade
sudo reboot


# Get the checker:
curl -O -s https://raw.githubusercontent.com/speed47/spectre-meltdown-checker/master/spectre-meltdown-checker.sh

# Check and read the source code:
less spectre-meltdown-checker.sh

# Check vulnerabilities:
sudo sh spectre-meltdown-checker.sh