1、ubuntu arm v7的板子，内核版本比较老，发现了使用不一样的源安装程序会出现问题
2、旧内核自带的python2.7安装ptyhon-pip出现问题，无法运行
3、arm版使用当前源安装软件容易碰到错误
deb http://mirrors.aliyun.com/ubuntu-ports/ xenial main deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial main deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates main deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates main deb http://mirrors.aliyun.com/ubuntu-ports/ xenial universe deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial universe deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates universe deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-updates universe deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-security main deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-security main deb http://mirrors.aliyun.com/ubuntu-ports/ xenial-security universe deb-src http://mirrors.aliyun.com/ubuntu-ports/ xenial-security universe二、 新源
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main multiverse restricted universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main multiverse restricted universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main multiverse restricted universe deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main multiverse restricted universe deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main multiverse restricted universe deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main multiverse restricted universe deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main multiverse restricted universe deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main multiverse restricted universe
说明
1、旧源无法安装python3.6，新源可以
2、我16年的旧板子突然翻出来使用，使用新源安装python的pip、samba都会出现报错，使用旧源直接安装直接使用。
其他链接
linux python、python3 安装pip
