Ubuntu does not have access to the graphical interface and VirtualBox expansion solutions

After upgrading Ubuntu 12.04 appears "Ubuntu is running in low-graphics mode? " ", unable to enter the graphical interface, and gave some options, found that the other few are useless, and eventually can only use low-graphics Access, but the system is still not in, the following is the solution:

First ctrl+alt+f1(~F6) into the terminal, and then log on the user ;

Then do the following steps

sudo apt-get update

sudo apt-get-d install--reinstall GDM

sudo apt-get remove--purge GDM

Execute sudo apt-get install GDM again

Prompt to choose GDM during installation

Then sudo reboot

You can enter the graphical interface after rebooting, but the effect is not as good as before.

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Also found VirtualBox virtual hard disk space to run out, so will VirtualBox The installation directory D:\Program files\oracle\ The VirtualBox is added to the system environment variable.

Then, in cmd , go to ubuntu1204.vdi 's storage path C:\Users\Turing\VirtualBox vms\ubuntu1204, execute the command vboxmanage MODIFYHD Ubuntu1204.vdi--resize 20000

The expansion is complete!

Http://blog.sina.com.cn/s/blog_6696b96901015sgu.html

Ubuntu does not have access to the graphical interface and VirtualBox expansion solutions