You are trying to install Ubuntu in bios mode to a disk that is partitioned using GPT. You need to create a 1 mb bios_grub partition to do this, or install in EFI mode instead.
** Changed in: grub-installer (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1578439 Title: reinstall of ubuntu grub failed to install on drive sda To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1578439/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs