Ubuntu 更新软件源（阿里、华为、清华源）

一、备份源 and 恢复源

注：**.bak 做的备份源文件不要删了

1.1、备份源：

cp /etc/apt/sources.list /etc/apt/sources.list.bak

1.2、恢复源：

把现有的删了：

rm -rf /etc/apt/sources.list

将备份源还原回来

cp /etc/apt/sources.list.bak /etc/apt/sources.list

再重新更新软件源以及软件

apt -y update && apt upgrade

1.3、更换源：

编辑源文件，在文件的后面添加地址源地址 推荐阿里的：

vim /etc/apt/sources.list

重新更新软件源以及软件

apt -y update && apt upgrade

二、地址源

2.1、阿里源地址

# 阿里源地址
deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

2.2、华为源地址

# 华为源地址
deb https://repo.huaweicloud.com/ubuntu/ focal main restricted
deb https://repo.huaweicloud.com/ubuntu/ focal-updates main restricted
deb https://repo.huaweicloud.com/ubuntu/ focal universe
deb https://repo.huaweicloud.com/ubuntu/ focal-updates universe
deb https://repo.huaweicloud.com/ubuntu/ focal-backports main restricted universe
deb https://repo.huaweicloud.com/ubuntu/ focal-security main restricted
deb https://repo.huaweicloud.com/ubuntu/ focal-security universe

2.3、中科大源地址

# 中科大源地址
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

2.4、163源地址

# 163源地址
deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse

2.5、清华源地址

# 清华源地址
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe ultiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe ultiverse

三、常见问题

3.1、Docker容器下无法更新源报错缺少对应的公钥

在添加完源后更新软件源和软件报错：

ps:尝试从镜像站点（mirrors.aliyun.com）更新软件包时遇到了签名验证,缺少对应的公钥

解决：(最后面是你的Docker主机名)

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32

报错：gnupg没安装

apt-get update
apt-get install gnupg

再次执行：

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32

成功了：

更新软件源和软件：

apt -y update && apt upgrade

3.2、源文件里面不支持中文，乱码

编辑：

vim /etc/profile
export LANG=C.UTF-8            # 在最后一行添加，最后一行快捷键：G ，O编辑下一行

更新：

source /etc/profile