how to launch grub menu for ubuntu guests in virtualbox?

Posted by Ubuntuser on Ask Ubuntu See other posts from Ask Ubuntu or by Ubuntuser
Published on 2012-01-27T17:20:53Z Indexed on 2012/03/25 11:41 UTC
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virtualbox

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12.04

I have ubuntu 12.04 alpha installed in virtualbox. When the virtual machine is started, it boots directly to the login screen without showing the grub menu. How can I get the grub menu to show up on start?

Please note: the graphics is broken after recent updates, so i cannot login and make the changes. it is stuck at the screen "Ubuntu is running on low graphics mode" and the mouse and other keys do not work.

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