It worked - thanks a lot! :D
Basically, if anyone's getting the following error:
mdadm: Note: this array has metadata at the start and may not be suitable as a boot device. If you plan to store '/boot' on this device please ensure that your boot-loader understands md/v1.x metadata, or use --metadata=0.90 Then change the following line in "freshInstall.sh":
mdadm —create ${rootfsDevice} —verbose —raid-devices=2 —level=raid1 —run ${rootfsDisk1} missing
to
mdadm —create ${rootfsDevice} —verbose —metadata=0.9 —raid-devices=2 —level=raid1 —run ${rootfsDisk1} missing
