Addition maybe relevant: After I got the upgraded partition to start, I noticed that Windows7 no longer was in the Grub menu. So I launched the app "Grub customizer". Saving Grub however did not correct this. I then noticed that according to "Grub customizer" Grub was not in the MBR, so it saved it to the partition. After choosing "install in MBR" the problem was solved.
So it seems that even though Grub was installed in MBR, Ubuntu itself was not aware of that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1315978 Title: upgrade 13.10 to 14.04 moved grub to MBR To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1315978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs