Ubuntu出现无法定位软件包
解决方法更换源 1.备份source.list,
sudo cp /etc/apt/sources.list /etc/apt/sources.list.old2.执行命令打开sources.list文件
sudo vim /etc/apt/sources.list3.添加阿里云源
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse4.更新
sudo apt-get update5.安装yum
sudo apt-get install yum6.安装后测试命令
yum7.如果测试yum是出现错误SyntaxError: invalid syntax
原因python环境连接到了python3上，但yum默认环境为python2
所以报错
vim /usr/bin/yum
按A插入将第一行的#! /usr/bin/python改为#! /usr/bin/python2
按esc退出输入:wq
立即生效
总结
搞了一晚上真是菜鸡他妈给菜鸡开门菜到家了
