http://stackoverflow.com/questions/23182765/how-to-install-ia32-libs-in-ubuntu-14-04-lts
sudo -i
cd /etc/apt/sources.list.d
//注意是：old-releases.ubuntu.com/ubuntu/，网上很多和次类似，但地址都不对，无法安装，安装后记得删除ia32-libs-raring.list，然后update
echo "deb http://old-releases.ubuntu.com/ubuntu/ raring main restricted universe multiverse" >ia32-libs-raring.list
apt-get update
apt-get install ia32-libs
PS: In this way, you can install ia32-libs. However, we add the source of 13.04 instead, so, there may be some problem unknown。After install ia32-libs, I recommend you to remove the ia32-libs-raring.list in /etc/apt/sources.list.d, and do sudo apt-get update.