安装完centos8后，图形界面不时出现如下的要求输入密码的验证
解决办法:
cd /etc/polkit-1/localauthority/50-local.d/ vi 46-allow-packagekit.pkla 内容如下:
[Allow Refresh Repository all Users] Identity=unix-user:* Action=org.freedesktop.packagekit.system-sources-refresh ResultAny=no ResultInactive=no ResultActive=yes
标签：packagekit,no,required,repositories,system,refresh,authentication From： https://www.cnblogs.com/hxlasky/p/17351681.html