installer crashed after grub tried to install bootlaoder on secondary drive which was a not a desired task

[drmaq63]

I have experienced this issue with installations that I have done with two or more drives installed at the time of installation of Ubuntu. every time I try to install ubuntu on a computer with two or more hard drives Grub tries to install the bootloader on a secondary drive with I do not wish to happen. This time the installer crashed

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.6
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CasperVersion: 1.394
Date: Thu Jan 17 20:33:01 2019
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)