post_install() {
rm /usr/lib/os-release
rm /etc/os-release
cp /usr/lib/os-release-new /usr/lib/os-release
cp /usr/lib/os-release-new /etc/os-release
rm /usr/lib/os-release-new
chmod 644 /usr/lib/os-release
chmod 644 /etc/os-release
}

post_upgrade() {
    post_install
}
