阿里云镜像

  1. deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
  2. deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
  3. deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
  4. deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
  5. deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
  6. deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
  7. deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
  8. deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
  9. deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
  10. deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse