In comment #18 you mention that the output is from Lucid before running update-manager and in that comment 'grub-pc/install_devices: ' is empty. This means that some time during Lucid, or when installing the sytem, this choice was made.
** Changed in: update-manager (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/949992 Title: Upgrade from Lucid to Precise results in broken grub configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/949992/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs