You are trying to install in BIOS mode to a hard disk that is partitioned with GPT. To do this you need to create a 1 mb bios_grub partition on the drive, or install in EFI mode instead, or repartition the drive to use MBR instead of GPT.
** 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/1699653 Title: install completely stops at this point and says it can't install the grub stuff To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1699653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs