Update keyring first if your Arch Linux is old enough | Nan Xiao's Blog (
nanxiao.me)
My Arch Linux is not updated for nearly 3 months. When running pacman -Syu, it prompts following errors: $ sudo pacman -Syu ...... error: python-dnspython: signature from "Eli Schwartz " is unknown trust :: File /var/cache/pacman/pkg/python-dnspython-1.16.0-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it? [Y/n] error: python-distlib: signature from "Eli Schwartz " is unknown trust :: File /var/cache/pacman/pkg/python-distlib-0.2.8-1-any.pkg.tar.xz is...