备份之前的源文件
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup # 备份源列表
添加阿里源
vi /etc/apt/sources.list
输入:,$d删除之前的源
1 #添加以下内容 2 deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse 3 deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse 4 5 deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse 6 deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse 7 8 deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse 9 deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse 10 11 deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse 12 deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse 13 14 deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse 15 deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
更新软件列表
sudo apt-get update && apt-get upgrade