Think I got the same with Lubuntu 16.10, because grub-install is not present, grub-pc is not part of the DVD, and I was offline I got that dialog.
It is responsive (I can select any options) but if I select continue installation, or end installation, or close the window with close decoration, nothing will make the window to go away. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1608006 Title: "bootloader install failed" dialog unresponsive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1608006/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs