Unfortunately the pastebins have been removed by now; I'm unfortunately stuck trying to make an educated guess for the moment.
Do you also have a "Windows boot manager" entry in your boot options, besides "ubuntu"? What seems to me is like you've possibly installed Ubuntu in EFI mode when Windows wasn't, or some other permutation of one OS using EFI and the other expecting a BIOS boot. Could you please do the same commands as you've pastebinned above, but adding them as attached files instead? Also, what happens if from the boot options you explicitly select the hard drive, rather than 'ubuntu'? ** Changed in: grub2 (Ubuntu) Importance: Undecided => Medium ** Changed in: grub2 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1411017 Title: No bootable image was found. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1411017/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs