sudo pacman -U --noconfirm https://www.parabola.nu/packages/libre/any/parabola-keyring/download https://mirror.fsf.org/parabola/core/os/x86_64/archlinux-keyring-20180404-1-any.pkg.tar.xz https://www.parabola.nu/packages/libre/any/pacman-mirrorlist/download