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Ubuntu配置阿里镜像源,更新后提示错误?

Ubuntu16.04

如下步骤配置阿里镜像源

sudo mv /etc/apt/sources.list /etc/apt/sources.list.bak
sudo vim /etc/apt/sources.list
  • 添加阿里镜像源
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
  • 执行更新,提示错误,但是没看懂
sudo apt-get update

  • 执行升级,也有错误
sudo apt-get upgrade

问题1:错误提示是什么意思,有什么影响?
问题2:如何处理这种错误提示?

回答

来来来,看看 阿里云官网 介绍的配置
https://developer.aliyun.com/mirror/ubuntu?spm=a2c6h.13651102.0.0.3e221b11lerPLW

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