Well if if the bios is old than its recommended to add a seperate /boot partition at the beginning of the disk. Try that and see if still throws give you a Grub error 18.
** Changed in: grub (Ubuntu) Status: New => Incomplete -- grub stays in stage 1.5 after installation https://bugs.launchpad.net/bugs/179976 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs