走过岁月......

阿里源如下：

deb https://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiverse

deb https://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiverse

deb-src https://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiverse

deb-src https://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiverse

deb-src https://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiverse

deb-src https://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiverse

deb-src https://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiverse