Reinstalling Ubuntu 16.04 on a 5 hard drive system /dev/sda is a boot drive wd ssd got wiped by manajro then inaccessible and default root need help

[intuitionist]

attempting to reinstall ubuntu 16.04 on a 5 hard drive system (not RAID) with /dev/sda being root and WD SSD which is chosen by default and I am unable to format. Need help.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.43
ProcVersionSignature: Ubuntu 4.3.0-7.18-generic 4.3.3
Uname: Linux 4.3.0-7-generic x86_64
ApportVersion: 2.19.4-0ubuntu1
Architecture: amd64
CasperVersion: 1.366
Date: Tue Mar 15 22:19:48 2016
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Grub can not be installed on /dev/sda because it has no partitions. You either need to create at least one partition there, or choose to install grub to another drive instead.