It's been a while, but I suspect under novice mode that install defaults to a couple of hard drive partitions. If you install under intermediate mode you can make a few choices about such things, and if you install under the most advanced mode you have to make choices for every annoying little thing.
Looks like you have a partition called HD1: but it's not AmigaDOS formatted. Select the icon with question marks and choose format from the menu bar at the top.
