Have this same issue trying to boot Windows 8.1 Preview. The Grub2 entry is there, but every time I try choosing it, it just reboots my PC. Trying to boot from 13.04.
Here is my forum thread on this. http://ubuntuforums.org/showthread.php?t=2167155 ** Changed in: grub2 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/475881 Title: Selecting Grub2 menu item for Windows 7 reboots PC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/475881/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
