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华为源

sudo sed -i "s@http://.*archive.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
sudo sed -i "s@http://.*security.ubuntu.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
# 如果之前用的aliyun的
sudo sed -i "s@http://.*mirrors.aliyun.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list
sudo sed -i "s@http://.*mirrors.aliyun.com@http://repo.huaweicloud.com@g" /etc/apt/sources.list

阿里源

# 先备份原sources.list 文件
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
# sed 命令替换域名
sudo sed -i 's/security.ubuntu/mirrors.aliyun/g' /etc/apt/sources.list
sudo sed -i 's/archive.ubuntu/mirrors.aliyun/g' /etc/apt/sources.list
sudo apt update
sudo apt-get upgrade    //更新已安装的包到最新，这个是可选的


sudo sed -i 's/repo.huaweicloud/mirrors.aliyun/g' /etc/apt/sources.list
sudo sed -i 's/repo.huaweicloud/mirrors.aliyun/g' /etc/apt/sources.list