阿里云镜像源配置
这样做的目的是为了提高下载速度
首先切换到root用户(进入root和密码在标题"安装ubuntu18"的序号"11"处有写)
cp /etc/apt/sources.list /etc/apt/sources.list.bak
然后编辑这个文件,替换为
vim /etc/apt/sources.list
######## Ubuntu18.04 阿里云镜像源 ###############
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
######## 阿里云镜像源 END ###############
然后输入
apt-get update
爽一波网速吧