After installing SysLinuxOS, the first thing to do is to update the system. sudo apt update In this case, the error message “The following signatures were invalid” indicates that the signatures have been updated. The solution would be to delete the old key and then update the system again: sudo rm /etc/apt/sources.list.d/wine-obs.list sudo apt update sudo apt upgrade -y enjoy… Leggi tutto »WineHQ The following signatures were invalid