Sailingthink的专栏

vi /etc/lightdm/lightdm.conf.     修改完的整个配置文件是   [SeatDefaults] greeter-session=unity-greeter user-session=ubuntu greeter-show-manual-login=true #手工输入登陆系统的用户名和密码 allow-guest=false   #不允许guest登

sudo apt-get install dkms build-essential linux-headers-$(uname -r) sudo /etc/init.d/vboxadd setup