1.用文本编辑器打开并编辑sources.list文件
由于刚装完系统,没有安装vim,故采用gedit命令打开
long@long-virtual-machine:~$ sudo gedit /etc/apt/sources.list
2.编辑修改国内镜像源,这里采用阿里云镜像。把deb后面的链接都改为http://mirrors.aliyun.com/ubuntu/即可
deb http://mirrors.aliyun.com/ubuntu/ xenial universe
# deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial universe
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe
# deb-src http://cn.archive.ubuntu.com/ubuntu/ xenial-updates universe
3.更新软件包
long@long-virtual-machine:~$ sudo apt-get update && apt-get upgrade && apt-get dist-upgrade