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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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1 Answer 1

up vote 6 down vote accepted

Hold the shift key as the VM boots.

If that fails, boot a desktop iso, mount the root partition at /mnt, and manually edit what you need or make an update in a chroot.

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