centos6 virbox安装

yum install kernel-devel
yum update kernel*

wget http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc
rpm --import oracle_vbox.asc
wget http://download.virtualbox.org/virtualbox/rpm/el/virtualbox.repo -O /etc/yum.repos.d/virtualbox.repo
yum install VirtualBox-4.3

wget http://download.virtualbox.org/virtualbox/4.3.2/Oracle_VM_VirtualBox_Extension_Pack-4.3.2-90405.vbox-extpack
VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.3.2-90405.vbox-extpack