centos8 Cannot prepare internal mirrorlist: No URLs in mirrorlist 累积了一个春节假期的CentOS未更新,所以今天执行了一下更新操作。然后报错了Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist瞬间懵逼 2022-02-09 1331 0 Linux 系统 CentOS