Ubuntu 14.10更新源

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

• 而后用gedit或其他编辑器打开:

 sudo gedit /etc/apt/sources.list

sudo apt-get update
sudo apt-get dist-upgrade

sohu源：

deb http://mirrors.sohu.com/ubuntu/ utopic main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ utopic-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ utopic-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ utopic main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ utopic-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ utopic-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ utopic-backports main restricted universe multiverse

aliyun源：

deb http://mirrors.aliyun.com/ubuntu/ utopic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ utopic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ utopic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ utopic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ utopic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ utopic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ utopic-backports main restricted universe multiverse

163源：

deb http://mirrors.163.com/ubuntu/ utopic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ utopic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ utopic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ utopic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ utopic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ utopic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ utopic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ utopic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ utopic-backports main restricted universe multiverse