RHEL7.x 安装virtualbox增强组件

• Create the file /etc/yum.repos.d/rhel-dvd.repo with the following contents:

• [rhel-cd]
  name=Red Hat Enterprise Linux $releasever - $basearch - CD
  baseurl=file:///media/rhel-dvd/
  enabled=1
  gpgcheck=0

  CentOS7 可以直接升级安装下列包

  yum update yum install gcc kernel-devel kernel-headers dkms make bzip2 reboot

• http://www.codesec.net/view/454907.html