Won't install bootloader while installing Ubuntu 16 point whatever

[Matthew Harris]

Trying to install Ubuntu Studio, it said it couldn't install the GRUB bootloader for no reason at all

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.2 [modified: lib/partman/automatically_partition/question]
ProcVersionSignature: Ubuntu 4.4.0-31.50-lowlatency 4.4.13
Uname: Linux 4.4.0-31-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CasperVersion: 1.376
Date: Mon Dec 26 13:48:29 2016
InstallCmdLine: file=/cdrom/preseed/ubuntustudio.seed boot=casper initrd=/casper/initrd.lz quiet splash ---
LiveMediaBuild: Ubuntu-Studio 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
ProcEnviron:
 LANGUAGE=en_GB.UTF-8
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

You chose to install grub to /dev/sdc1, which is a Windows partition. You need to install it to /dev/sda, or /dev/sdb if you want to tell your bios to boot from the same drive that you are installing Ubuntu to.