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I once had a working dual boot working on my computer. I had windows 7 and ubuntu running and I only had to select which system to start when starting my computer. After updating ubuntu though, the linux boot option is there but it doesn't boot anything and sits on a black screen. Windows still works fine. Any ideas as to how to fix this? Re-installing ubuntu is an option since I didn't have any permanent data on it, but I do need it now for cross platform purposes.

Lee Jacobs
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  • Fortunately this problem was addressed [earlier today.](http://askubuntu.com/questions/528650/dual-boot-pc-boots-directly-to-ubuntu-instead-of-showing-grub-menu) Please see my helpful comment in that same thread, even though my comment might apply somewhat less in your case. – gyropyge Sep 26 '14 at 07:14
  • I regret to say it appears the original link provided by the previous commenter in that thread has disappeared, so I'm providing a new link here. Sorry for the delay. https://help.ubuntu.com/community/Boot-Repair – gyropyge Sep 26 '14 at 07:23

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I would do as gyropyge suggested and try a boot-repair option first. It's possible that somehow your boot loader is not seeing the Ubuntu partition or loading it correctly.

Here is a link to the boot-repair-disk project on sourceforge: boot-repair-disk

Additionally, I would also suggest that you look into virtualization. For projects that require both Windows and Linux to be present, it is really useful to use a virtual machine. (You can emulate one from the other, but in my experience emulating Ubuntu from Windows is easier to do.)

Virtual Box

Steven Jeffries
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